--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/ada/ChangeLog-2019	Thu Feb 13 11:34:05 2020 +0900
@@ -0,0 +1,6716 @@
+2019-12-22  Maciej W. Rozycki  <macro@wdc.com>
+
+	* gcc-interface/Makefile.in (toolexeclibdir): New variable.
+
+2019-12-18  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/trans.c (Pragma_to_gnu) <Pragma_Warnings>: Push a
+	diagnostics state for pragma Warnings (Off) before turning off all
+	the warnings and only pop it for pragma Warnings (On).
+
+2019-12-18  Justin Squirek  <squirek@adacore.com>
+
+	* sem_ch6.adb (Analyze_Function_Return): Modify handling of
+	extended return statements to check accessibility of access
+	discriminants.
+	(Check_Aggregate_Accessibility): Removed.
+	(Check_Return_Obj_Accessibility): Added to centralize checking
+	of return aggregates and subtype indications in the case of an
+	extended return statement.
+
+2019-12-18  Arnaud Charlet  <charlet@adacore.com>
+
+	* libgnat/s-regpat.adb (Parse_Literal, Parse_Piece): Ensure
+	Expr_Flags is always fully initialized.
+
+2019-12-18  Arnaud Charlet  <charlet@adacore.com>
+
+	* libgnat/s-atopar.ads, libgnat/s-atopex.ads (Atomic_Type): Can
+	now be marked Atomic. This requires marking the unit Ada 202x.
+
+2019-12-18  Arnaud Charlet  <charlet@adacore.com>
+
+	* libgnat/a-nbnbin.ads, libgnat/a-nbnbin.adb,
+	libgnat/a-nbnbre.ads, libgnat/a-nbnbre.adb: Replace
+	Optional_Big_* types by a simple check and exception raise in
+	Get_Bignum.
+	(Set_Bignum): Arg should be 'out' and not 'in out'.
+	(Invalid_Big_Integer, No_Big_Real): Removed.
+	(Is_Valid): Now convention Intrinsic.
+
+2019-12-18  Piotr Trojanek  <trojanek@adacore.com>
+
+	* doc/gnat_rm/implementation_defined_pragmas.rst,
+	doc/gnat_rm/obsolescent_features.rst,
+	doc/gnat_ugn/gnat_and_program_execution.rst, exp_attr.adb,
+	exp_ch9.adb, init.c, libgnat/s-valrea.adb, par-ch6.adb,
+	sem_attr.adb, sem_ch4.adb, sem_util.ads: Fix trivial typos.
+	* gnat_rm.texi, gnat_ugn.texi: Regenerate.
+
+2019-12-18  Gary Dismukes  <dismukes@adacore.com>
+
+	* sem_res.adb (Resolve_Type_Conversion): Add handling for access
+	types with designated operand and target types that are
+	referenced in places that have a limited view of an interface
+	type by retrieving the nonlimited view when it exists.  Add ???
+	comments related to missing limited_with_clause handling for
+	Target (in the non-access case).
+
+2019-12-18  Ed Schonberg  <schonberg@adacore.com>
+
+	* par-ch12.adb (P_Formal_Derived_Type_Definition): In Ada_2020
+	the keyword WITH can indicate the start of aspect specifications
+	and not a private type extension.
+	* sem_ch12.adb (Analyze_Formal_Type): Indicate that it is a
+	first subtype.
+	(Instantiate_Type): New procedure
+	Check_Shared_Variable_Control_Aspects to verify matching rules
+	between formal and actual types. Note that an array type with
+	aspect Atomic_Components is considered compatible with an array
+	type whose component type is Atomic, even though the array types
+	do not carry the same aspect.
+	* sem_ch13.adb (Analyze_One_Aspect): Allow shared variable
+	control aspects to appear on formal types.
+	(Rep_Item_Too_Early): Exclude aspects on formal types.
+	* sem_prag.adb (Mark_Type): Handle properly pragmas that come
+	from aspects on formal types.
+	(Analyze_Pragma, case Atomic_Components): Handle formal types.
+
+2019-12-18  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* cstand.adb (Create_Standard): Remove duplicate line and
+	adjust.
+
+2019-12-18  Javier Miranda  <miranda@adacore.com>
+
+	* debug.adb: Document -gnatd_K as a reserved switch for the
+	detection of known problem issues of previous releases.
+
+2019-12-18  Ghjuvan Lacambre  <lacambre@adacore.com>
+
+	* par-ch13.adb: Check if declarations allow aspect
+	specifications.
+
+2019-12-18  Piotr Trojanek  <trojanek@adacore.com>
+
+	* einfo.ads (Is_Ghost_Entity): Fix typo in comment.
+
+2019-12-18  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* layout.adb (Layout_Type): In the case of composite types, do
+	not copy the Esize onto the RM_Size if the latter is not set.
+	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Record_Type>:
+	Also cap the alignment if an Object_Size clause has been
+	specified.  Pass VAR_DECL in the call to validate_size for the
+	Esize of a type.
+	(validate_size): Be prepared to give an error on an Object_Size
+	clause.
+
+2019-12-18  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* einfo.ads (Handling of Type'Size Value): Add references to the
+	introduction of Object_Size in Ada 2020.
+	* sem_eval.adb (Subtypes_Statically_Match): Likewise.
+
+2019-12-18  Bob Duff  <duff@adacore.com>
+
+	* sem_ch3.adb (Derive_Subprogram): Do not set the
+	Requires_Overriding flag in the above-mentioned case.
+
+2019-12-18  Bob Duff  <duff@adacore.com>
+
+	* sem_ch8.adb (Note_Redundant_Use): It was already checking for
+	a use clause in the visible part of the child. Add an additional
+	check for a use clause in the context clause of the child.
+
+2019-12-16  Bob Duff  <duff@adacore.com>
+
+	* errout.adb (Handle_Serious_Error): Disable the above-mentioned
+	warnings.
+
+2019-12-16  Bob Duff  <duff@adacore.com>
+
+	* errout.adb, errout.ads: Improve comments.
+
+2019-12-16  Bob Duff  <duff@adacore.com>
+
+	* sem_util.ads: Minor comment fix.
+
+2019-12-16  Bob Duff  <duff@adacore.com>
+
+	* errout.ads, errout.adb (Is_Size_Too_Small_Message): Check for
+	"size for" instead of "size for& too small, minimum allowed is
+	^".
+
+2019-12-16  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_ch13.adb (Analyze_Attribute_Definition_Clause): Set only
+	the RM_Size on the subtype built for a Component_Size clause
+	when the component type is a biased integer type.
+
+2019-12-16  Arnaud Charlet  <charlet@adacore.com>
+
+	* socket.c: Shutdown warning.
+
+2019-12-16  Arnaud Charlet  <charlet@adacore.com>
+
+	* libgnarl/s-tataat.ads (Deallocator): Mark as Favor_Top_Level.
+
+2019-12-16  Arnaud Charlet  <charlet@adacore.com>
+
+	* libgnat/s-aotase.adb, libgnat/s-aotase.ads,
+	libgnat/s-atoope.ads, libgnat/s-atopar.adb,
+	libgnat/s-atopar.ads, libgnat/s-atopex.adb,
+	libgnat/s-atopex.ads: New files.
+	* libgnat/s-atopri.ads: Add new intrinsics.
+	* Makefile.rtl: Add new runtime files.
+	* impunit.adb: Add new units to Ada 2020 list.
+
+2019-12-16  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* freeze.adb (Check_Strict_Alignment): Remove new check on
+	Has_Aliased_Components for array types.
+
+2019-12-16  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch4.adb (Try_Container_Indexing): In the case of a derived
+	container type, use the base type to look for candidate indexing
+	operations, because the object may be a constrained subtype or
+	itype with no explicit declaration.  Candidate indexing
+	operations are found in the same scope and list of declarations
+	as the declaration of the base type.
+
+2019-12-16  Ed Schonberg  <schonberg@adacore.com>
+
+	* scng.adb (Scan): In Ada2020, a left-bracket indicates the
+	start of an homogenous aggregate.
+	* par-ch4.adb (P_Reduction_Attribute_Reference): New procedure.
+	(P_Aggregate): Recognize Ada2020 bracket-delimited aggregates.
+	(P_Primary): Ditto.
+	* par-util.adb (Comma_Present): Return false on a right bracket
+	in Ada2020, indicating the end of an aggregate.
+	* snames.ads-tmpl: Introduce Name_Reduce and Attribute Reduce.
+	* sinfo.ads, sinfo.adb (Is_Homogeneous_Aggregate): New flag on
+	aggregates, to designate an Ada2020 array or container aggregate
+	that is bracket-delimited in the source.
+	* sem_attr.adb (Analyze_Attribute): For attribute Reduce, verify
+	that two arguments are present, and verify that the prefix is a
+	stream or an object that is iterable (array or contrainer).
+	(Resolve_Attribute): For attribute Reduce, resolve initial value
+	with the type of the context. Type-checking of element type of
+	prefix is performed after expansion.
+	* exp_attr.adb (Expand_N_Attribute_Reference): For attribute
+	Reduce, expand into a loop: a) If prefix is an aggregate with a
+	single iterated component association, use its iterator
+	specification to construct a loop, b) If prefix is a name, build
+	a loop using an element iterator loop.
+	* scans.ads: Add brackets tokens.
+
+2019-12-16  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/decl.c (gnat_to_gnu_entity): Adjust calls to
+	validate_size.
+	(gnat_to_gnu_component_type): Likewise.
+	(gnat_to_gnu_field): Likewise and pass string for error messages.
+	(components_need_strict_alignment): Remove test on Is_Aliased and
+	add test for the independence of the component.
+	(validate_size): Add S1 and S2 string parameters and use them to
+	give better error messages for fields.  Tweak a couple of messages.
+	* einfo.ads (Has_Independent_Components): Document more cases.
+	(Is_Independent): Likewise.
+	(Strict_Alignment): Document new semantics.
+	* exp_ch9.adb (Install_Private_Data_Declarations): Also set the
+	Is_Independent flag along with Is_Aliased on the renaming
+	entity.
+	* freeze.adb (Size_Known): Remove always-false test and add test
+	for the strict-alignment on the record type.  Remove redundant
+	tests and add test for the strict-alignment on the component
+	type.
+	(Check_Strict_Alignment): Set the flag if the type is by-ref and
+	remove now redundant conditions.  Set the flag on an array type
+	if it has aliased components.  In the record type case, do not
+	set type for C_Pass_By_Copy convention.
+	(Freeze_Array_Type): Move code checking for conflicts between
+	representation aspects and clauses to before specific handling
+	of packed array types. Give a warnind instead of an error for a
+	conflict with pragma Pack.  Do not test Has_Pragma_Pack for the
+	specific handling of packed array types.
+	(Freeze_Record_Type): Move error checking of representation
+	clause to...
+	(Freeze_Entity): ...here after Check_Strict_Alignment is called.
+	* sem_aggr.adb (Array_Aggr_Subtype): Also set the Is_Independent
+	flag along with Is_Aliased on the Itype.
+	* sem_ch13.adb (Check_Record_Representation_Clause): Do not set
+	the RM size for a strict-alignment type.
+	* sem_ch3.adb (Add_Interface_Tag_Components): Also set the
+	Is_Independent flag along with Is_Aliased on the tag.
+	(Add_Interface_Tag_Components): Likewise on the offset.
+	(Analyze_Component_Declaration): Likewise on the component.
+	(Analyze_Object_Declaration): Likewise on the object.
+	(Constrain_Array): Likewise on the array.
+	(Record_Type_Declaration: Likewise on the tag.
+	(Array_Type_Declaration): Also set the
+	Has_Independent_Components flag along with
+	Has_Aliased_Components on the array.
+	(Copy_Array_Base_Type_Attributes): Copy
+	Has_Independent_Components.
+	(Copy_Array_Subtype_Attributes): Copy Is_Atomic, Is_Independent
+	and Is_Volatile_Full_Access.
+	(Analyze_Iterator_Specification): Set Is_Independent on the loop
+	variable according to Independent_Components on the array.
+	* sem_ch5.adb: Likewise.
+	* sem_ch6.adb (Process_Formals): Also set the Is_Independent
+	flag along with Is_Aliased on the formal.
+
+2019-12-16  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_ch8.adb (Analyze_Object_Renaming): Set Atomic, Independent
+	and Volatile_Full_Access aspects on the entity of the renaming
+	the same way as the Volatile aspect is set.
+	* sem_util.ads (Is_Atomic_Object_Entity): Move declaration to...
+	(Is_Independent_Object): New function.
+	(Is_Volatile_Full_Access_Object): Likewise.
+	* sem_util.adb (Is_Atomic_Object_Entity): ...here.
+	(Prefix_Has_Atomic_Components): Minor tweak.
+	(Is_Atomic_Object): Test Is_Atomic on the Etype uniformly.
+	(Is_Atomic_Or_VFA_Object): Call Is_Volatile_Full_Access_Object.
+	(Is_Independent_Object): New predicate.
+	(Is_Subcomponent_Of_Atomic_Object): Remove redundant test.
+	(Is_Volatile_Full_Access_Object): New predicate.
+	(Is_Volatile_Prefix): Rename into...
+	(Prefix_Has_Volatile_Components): ... and call
+	Is_Volatile_Object.
+	(Object_Has_Volatile_Components): Delete.
+	(Is_Volatile_Object): Simplify.
+	* gcc-interface/trans.c (node_is_volatile_full_access): Adjust
+	comment.
+
+2019-12-16  Bob Duff  <duff@adacore.com>
+
+	* par.adb: Add Scopes function to do range checking on the scope
+	stack.  Call Scopes all over the parser.  Add
+	SIS_Aspect_Import_Seen flag.
+	* par-ch6.adb (P_Subprogram): Initialize SIS_Aspect_Import_Seen
+	to False at the start, and check it at the end.
+	* par-ch13.adb (Get_Aspect_Specifications): Set
+	SIS_Aspect_Import_Seen to True when appropriate.
+	* par-ch10.adb, par-ch12.adb, par-ch2.adb, par-ch3.adb,
+	par-ch5.adb, par-ch7.adb, par-ch9.adb, par-endh.adb,
+	par-util.adb: Call Scopes.
+
+2019-12-16  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_prag.adb (Atomic_Components): Remove local variable and
+	fix consistency issues.  Call Component_Type on the Etype of E.
+	(Independent_Components): Remove local variable.
+	* sem_util.adb (Is_Subcomponent_Of_Atomic_Object): Properly deal
+	with prefixes that are access values.
+	* gcc-interface/trans.c (atomic_acces_t): New enumeral type.
+	(node_is_atomic) <N_Indexed_Component>: Test the prefix.
+	(node_has_volatile_full_access): Rename into...
+	(node_is_volatile_full_access): ...this.
+	(node_is_component): New predicare.
+	(gnat_strip_type_conversion): Delete.
+	(outer_atomic_access_required_p): Likewise.
+	(atomic_access_required_p): Rename into...
+	(get_atomic_access): ...this.  Implement the 3 different semantics
+	of Atomic and Volatile_Full_Access.
+	(simple_atomic_access_required_p): New predicate.
+	(Call_to_gnu): Remove outer_atomic_access parameter and change the
+	type of atomic_access parameter to atomic_acces_t.  Replace call to
+	atomic_access_required_p with simple_atomic_access_required_p for
+	the in direction and call get_atomic_access for the out direction
+	instead of [outer_]atomic_access_required_p.
+	(lhs_or_actual_p): Constify local variables.
+	(present_in_lhs_or_actual_p): Likewise.
+	(gnat_to_gnu) <N_Identifier>: Replace call to atomic_access_required_p
+	with simple_atomic_access_required_p.
+	<N_Explicit_Dereference>: Likewise.
+	<N_Indexed_Component>: Likewise.
+	<N_Selected_Component>: Likewise.
+	<N_Assignment_Statement>: Call get_atomic_access for the name instead
+	of [outer_]atomic_access_required_p.  Adjust call to Call_to_gnu.
+	<N_Function_Call>: Adjust call to Call_to_gnu.
+	(get_controlling_type): Fix typo in comment.
+
+2019-12-16  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* fe.h (Ada_Version_Type): New typedef.
+	(Ada_Version): Declare.
+	* opt.ads (Ada_Version_Type): Add Convention C and WARNING line.
+	(Ada_Version): Add WARNING line.
+	(Exception_Mechanism_Type): Likewise.
+
+2019-12-16  Gary Dismukes  <dismukes@adacore.com>
+
+	* checks.adb, sem_util.adb: Minor reformatting and U.S. spelling
+	adjustment.
+
+2019-12-16  Bob Duff  <duff@adacore.com>
+
+	* sem_ch10.adb (Analyze_Subunit): Give an error if the subunit
+	is not a proper body. This hides the confusing "duplicate body"
+	message that was previously given.
+
+2019-12-16  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* exp_ch8.adb (Expand_N_Object_Renaming_Declaration): Document
+	third special case of renamings requiring special handling.
+	(Evaluation_Required): Return true for an atomic or VFA prefix.
+
+2019-12-16  Ed Schonberg  <schonberg@adacore.com>
+
+	* checks.adb (Apply_Float_Conversion_Check): Use node of type
+	conversion and not its parent, when inserting the declaration
+	for the temporary that hold the result of the conversion.
+	Previously the declaration was inserted above the parent of the
+	conversion, apparently as a small optimization for the
+	subsequent traversal in Insert_Actions.  Unfortunately a similar
+	optimization takes place in Insert_Actions, assuming that the
+	insertion point must be above the expression that creates the
+	actions to insert.  This is not correct in the presence of
+	conditional expressions (i.e.  since Ada2012), where the
+	insertion must be in the list of actions attached to the current
+	alternative.
+
+2019-12-16  Bob Duff  <duff@adacore.com>
+
+	* sem_attr.adb (Analyze_Attribute): Use Known_RM_Size. But we
+	still need Size_Known_At_Compile_Time, because when the size
+	really is known, sometimes only one or the other of these is
+	True.
+
+2019-12-16  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_util.adb (Is_Atomic_Or_VFA_Object): Also return true for
+	components whose type is Volatile_Full_Access or which are
+	subject to the aspect/pragma individually.
+	* sem_util.ads (Is_Atomic_Object_Entity): Small comment fix.
+
+2019-12-16  Yannick Moy  <moy@adacore.com>
+
+	* exp_ch6.adb: Fix comment.
+	* sem_res.adb (Resolve_Call): Do not check No_Recursion
+	restriction or indirectly No_Secondary_Stack restriction, when
+	inside an ignored ghost subprogram.
+
+2019-12-16  Arnaud Charlet  <charlet@adacore.com>
+
+	* impunit.adb: Add a-nbnbin, a-nbnbre, a-nubinu to Ada 2020
+	units.
+	* Makefile.rtl: Enable new file.
+	* libgnat/a-nbnbin.adb, libgnat/a-nbnbin.ads,
+	libgnat/a-nbnbre.adb, libgnat/a-nbnbre.ads,
+	libgnat/a-nubinu.ads: New files. Provide default standalone
+	implementation of Ada.Numerics.Big_Numbers.Big_* based on
+	System.Generic_Bignum.
+	* libgnat/a-nbnbin__gmp.adb: Alternate implementation of
+	Ada.Numerics.Big_Numbers.Big_Integers based on GMP. Not enabled
+	for now.
+	* libgnat/s-bignum.ads, libgnat/s-bignum.adb: Now a simple
+	wrapper on top of s-genbig.ads.
+	* libgnat/s-genbig.ads, libgnat/s-genbig.adb: New files, making
+	s-bignum generic for reuse in Ada.Numerics.Big_Numbers.
+
+2019-12-16  Bob Duff  <duff@adacore.com>
+
+	* doc/gnat_ugn/building_executable_programs_with_gnat.rst:
+	Correct documentation of -gnatw_C switch
+	* gnat_ugn.texi: Regenerate.
+
+2019-12-16  Joel Brobecker  <brobecker@adacore.com>
+
+	* doc/gnat_ugn/building_executable_programs_with_gnat.rst
+	(_Switches_for_gnatbind): Reword the section explaining the
+	impact of -minimal on debugging.
+	* gnat_ugn.texi: Regenerate.
+
+2019-12-16  Gary Dismukes  <dismukes@adacore.com>
+
+	* libgnat/g-exptty.adb, libgnat/g-exptty.ads: Typo fixes and
+	minor reformatting.
+
+2019-12-16  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* exp_ch6.adb (Requires_Atomic_Or_Volatile_Copy): New predicate.
+	(Expand_Actuals): Use it to decide whether to add call by copy
+	code as per the RM C.6(19) clause.
+	* fe.h (Is_Atomic_Object): Remove.
+	(Is_Volatile_Object): Likewise.
+	* sem_util.ads (Is_Atomic_Object): Remove WARNING note.
+	(Is_Volatile_Object): Likewise.
+	* gcc-interface/trans.c (atomic_or_volatile_copy_required_p): Delete.
+	(Call_to_gnu): Do not implement the  RM C.6(19) clause.
+
+2019-12-16  Ghjuvan Lacambre  <lacambre@adacore.com>
+
+	* sem_ch12.adb (Validate_Access_Subprogram_Instance): Add
+	Can_Never_Be_Null checks.
+
+2019-12-16  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* doc/gnat_rm/implementation_defined_pragmas.rst (VFA): Document
+	extension of the no-aliasing rule to any subcomponent.
+	* freeze.adb (Freeze_Object_Declaration): Small comment tweak.
+	(Freeze_Record_Type): Do not deal with delayed aspect
+	specifications for components here but...
+	(Freeze_Entity): ...here instead.
+	* sem_ch12.adb (Instantiate_Object): Improve wording of errors
+	given for legality rules in C.6(12) and implement the new rule
+	in C.6(13).
+	* sem_res.adb (Resolve_Actuals): Likewise.
+	* sem_prag.adb (Check_Atomic_VFA): New procedure implementing
+	the new legality rules in C.6(13).
+	(Process_Atomic_Independent_Shared_Volatile): Call
+	Check_Atomic_VFA to check the legality rules.  Factor out code
+	marking types into...
+	(Mark_Type): ...this new procedure.
+	(Check_VFA_Conflicts): Do not check the legality rules here.
+	(Pragma_Atomic_Components): Call Check_Atomic_VFA on component
+	type.
+	* sem_util.ads (Is_Subcomponent_Of_Atomic_Object): Declare.
+	* sem_util.adb (Is_Subcomponent_Of_Atomic_Object): New
+	predicate.
+	* gnat_rm.texi: Regenerate.
+
+2019-12-13  Gary Dismukes  <dismukes@adacore.com>
+
+	* doc/gnat_rm/implementation_defined_pragmas.rst: Minor
+	rewording of one sentence.
+	* gnat_rm.texi: Regenerate.
+
+2019-12-13  Arnaud Charlet  <charlet@adacore.com>
+
+	* exp_unst.adb (Unnest_Subprogram): Account for trees produced
+	by Annex E constructs.
+
+2019-12-13  Ghjuvan Lacambre  <lacambre@adacore.com>
+
+	* doc/gnat_rm/implementation_defined_pragmas.rst: Update
+	Initialize_Scalars documentation.
+	* gnat_rm.texi: Regenerate.
+
+2019-12-13  Javier Miranda  <miranda@adacore.com>
+
+	* sem_ch13.adb (Analyze_Aspect_Specification): Processing a
+	precondition, if the expression is of the form A and then B, do
+	not generate separate Pre/Post aspects for the separate clases
+	when we are processing a generic unit. Required to avoid
+	reporting spurious visibility errors on the instantiations.
+
+2019-12-13  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_res.adb (Resolve_Actuals): Give canonical error for
+	illegal case of atomic/volatile parameter also if the formal is
+	aliased.
+
+2019-12-13  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_util.ads (Is_Atomic_Object): Mention relevant RM clauses.
+	* sem_util.adb (Is_Atomic_Object): For an indexed component,
+	only look at the Has_Atomic_Components aspect of the prefix and
+	do not recurse on it; for a selected component, do not look at
+	the prefix.
+	(Is_Atomic_Or_VFA_Object): Minor tweak.
+
+2019-12-13  Arnaud Charlet  <charlet@adacore.com>
+
+	* libgnat/a-calfor.ads, libgnat/a-calfor.adb (Split_Duration):
+	New procedure.
+	(Split, Image): Use Split_Duration. Update Image spec.
+
+2019-12-13  Javier Miranda  <miranda@adacore.com>
+
+	* exp_unst.adb (Unnest_Subprogram): Generate an extra temporary
+	to facilitate the C backend processing dereferences.
+
+2019-12-13  Javier Miranda  <miranda@adacore.com>
+
+	* sem_prag.adb (Analyze_Pragma): Propagate the
+	Linker_Section_Attribute to the ultimate alias of the subprogram
+	to facilitate the C backend processing this attribute.
+
+2019-12-13  Yannick Moy  <moy@adacore.com>
+
+	* sem_util.adb (Original_Aspect_Pragma_Name): Go through
+	Original_Node for pragma.
+
+2019-12-13  Piotr Trojanek  <trojanek@adacore.com>
+
+	* exp_aggr.adb, exp_unst.adb: Minor fix typo in comment.
+
+2019-12-13  Steve Baird  <baird@adacore.com>
+
+	* sem_res.adb (Resolve, Valid_Conversion): Add Base_Type call
+	when testing whether a type is a general access type.
+
+2019-12-13  Javier Miranda  <miranda@adacore.com>
+
+	* exp_ch4.adb (Expand_N_Unchecked_Type_Conversion): Generate an
+	extra temporary for cases unsupported by the C backend.
+
+2019-12-13  Steve Baird  <baird@adacore.com>
+
+	* einfo.ads: Correct comment for Derived_Type_Link to reflect
+	that fact that this function is now used for more than just
+	generation of warnings.
+	* sem_ch3.adb (Build_Derived_Type): Do not call
+	Set_Derived_Type_Link if the derived type and the parent type
+	are in different compilation units. Such a derivation cannot be
+	a problematic "early" derivation (identifying these is what the
+	Derived_Type_Link attribute is used for) and we don't like
+	inter-unit references that go in the opposite direction of
+	semantic dependencies.
+	* sem_ch13.adb (Is_Type_Related_Rep_Item): A new function,
+	analogous to the existing function Is_Operational_Item.
+	(Rep_Item_Too_Late): Generate a hard error (with same text as
+	the warning that was previously being generated) if the
+	AI12-0109 legality rule is violated.
+
+2019-12-13  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* doc/gnat_rm/implementation_defined_pragmas.rst: Minor tweak to
+	Volatile_Full_Access wording in GNAT RM.
+	* gnat_rm.texi: Regenerate.
+
+2019-12-13  Gary Dismukes  <dismukes@adacore.com>
+
+	* exp_attr.adb (Expand_N_Attribute_Reference,
+	Attribute_Address): Suppress generation of a call to
+	Base_Address in the case where the Address attribute is being
+	used to initialize a corresponding component of an activation
+	record.
+	(Is_Unnested_Component_Init): New function to determine whether
+	an attribute reference for Address is used to initialized a
+	component of an activation record object that corresponds to the
+	object denoted by the prefix of the attribute (an assignment
+	used in support of unnesting for back ends like LLVM).
+
+2019-12-13  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_res.adb (Resolve): IF an entity reference is overloaded
+	because its type has an Implicit_Dereference aspect, we must
+	examine the discriminants of the type to determine whether an
+	explicit dereference must be inserted for use in code
+	generation. Previously this was done for other expressions but
+	not for entity references by themselves.  This was sufficient to
+	handle uses of the aspect in container handling and iteration,
+	but not more generally.
+
+2019-12-13  Javier Miranda  <miranda@adacore.com>
+
+	* exp_disp.ads (Expand_Interface_Thunk): Adding one formal (the
+	interface type).
+	* exp_disp.adb (Expand_Interface_Thunk): Using the added formal
+	to ensure the correct profile of the thunk generated for
+	predefined primitives; in addition, the added formal is also
+	used to perform a check that ensures that the controlling type
+	of the thunk is the one expected by the GCC backend.
+	(Make_Secondary_DT, Register_Primitive): Adding the new formal
+	to the calls to Expand_Interface_Thunk.
+	* exp_ch6.adb (Register_Predefined_DT_Entry): Adding the new
+	formal to the call to Expand_Interface_Thunk.
+	* exp_intr.adb (Expand_Unc_Deallocation): When deallocating a
+	controlled type and the call to unchecked deallocation is
+	performed with a pointer to one of the convered interface types,
+	displace the pointer to the object to reference the base of the
+	object to deallocate its memory.
+	* gcc-interface/trans.c (maybe_make_gnu_thunk): Assert that the
+	controlling type of the thunk is an interface type.
+
+2019-12-13  Bob Duff  <duff@adacore.com>
+
+	* exp_attr.adb (Is_Available): Remove this function, and replace
+	all calls with RTE_Available. RTE_Available will return True if
+	"not Configurable_Run_Time_Mode". Remove the "???" comment.
+
+2019-12-13  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch7.adb (Analyze_Package_Body_Helper): Do not call
+	Declare_Inherited_Private_Subprograms on s child body: the
+	required operations have already been created when analyzing the
+	corresponding package declaration. This prevents a redeclaration
+	of inehrited operation, and a crash when inserting the new
+	operation in the current scope.
+
+2019-12-13  Yannick Moy  <moy@adacore.com>
+
+	* sem_prag.adb (Analyze_Depends_In_Decl_Part,
+	Analyze_Global_In_Decl_Part,
+	Analyze_Refined_Depends_In_Decl_Part,
+	Analyze_Refined_Global_In_Decl_Part, Check_Missing_Part_Of):
+	Skip redundant checking involving visibility inside
+	instantiations.
+
+2019-12-13  Yannick Moy  <moy@adacore.com>
+
+	* sem_res.adb (Resolve_Call): Prevent inlining inside while loop
+	conditions.
+	* sem_util.adb, sem_util.ads (In_While_Loop_Condition): New
+	query function.
+
+2019-12-13  Bob Duff  <duff@adacore.com>
+
+	* impunit.ads: Add Ada_202X_Unit.
+	* impunit.adb: Add a table Non_Imp_File_Names_2X analogous to
+	the other tables. Add code to search this table.
+	* opt.ads: Add Warn_On_Ada_202X_Compatibility flag, currently
+	always True.
+	* sem_ch10.adb (Analyze_With_Clause): Give a warning if an Ada
+	2020 unit is with-ed when Ada_Version < Ada_2020.  Change 'if'
+	to 'case': Full coverage rules rule.
+
+2019-12-13  Bob Duff  <duff@adacore.com>
+
+	* rtsfind.ads: Minor comment fix.
+
+2019-12-13  Gary Dismukes  <dismukes@adacore.com>
+
+	* sem_util.adb (Scope_Within): For the case of checking for a
+	task type procedure, check the Implementation_Base_Type of Curr.
+	(Scope_Within_Or_Same): For the case of checking for a task type
+	procedure, check the Implementation_Base_Type of Curr.
+
+2019-12-13  Arnaud Charlet  <charlet@adacore.com>
+
+	* impunit.adb (Non_Imp_File_Names_12): Add
+	Ada.Containers.Vectors.Generic_Parallel_Sorting.
+
+2019-12-13  Justin Squirek  <squirek@adacore.com>
+
+	* sem_res.adb (Resolve_Allocator): Add calls to
+	Check_Cond_Expr_Accessibility when a conditional expression is
+	found.
+	(Check_Allocator_Discrim_Accessibility_Exprs): Created to
+	recursively traverse a potentially compound conditional
+	expression and perform accessibility checks for each
+	alternative.
+	* sem_util.adb (Dynamic_Accessibility_Level): Avoid use of
+	original node of the expression in question so we can handle
+	dynamic accessibility in the limited case of a constant folded
+	conditional expression.
+
+2019-12-13  Steve Baird  <baird@adacore.com>
+
+	* exp_ch4.adb (Expand_N_Op_Eq.Is_Equality): Move this function
+	from within Expand_N_Op_Eq.Find_Equality out to immediately
+	within Expand_N_Op_Eq in order to give it greater visibility.
+	Add a new Typ parameter (defaulted to Empty) which, if
+	non-empty, means the function will return False in the case of
+	an equality op for some other type.
+	* (Expand_N_Op_Eq.User_Defined_Primitive_Equality_Op): A new
+	function. Given an untagged record type, finds the corresponding
+	user-defined primitive equality op (if any).  May return Empty.
+	Ignores visibility.
+	* (Expand_N_Op): For Ada2012 or later, check for presence of a
+	user-defined primitive equality op before falling back on the
+	usual predefined component-by-component comparison. If found,
+	then call the user-defined op instead.
+
+2019-12-13  Justin Squirek  <squirek@adacore.com>
+
+	* sem_ch6.adb (Check_Overriding_Indicator): Modify condition to
+	take into account the modification of the Is_Hidden flag within
+	generic instances.
+	(Verify_Overriding_Indicator): Add an exception for controlled
+	primitives within an instance.
+
+2019-12-13  Ed Schonberg  <schonberg@adacore.com>
+
+	* sinfo.ads, sinfo.adb (Aspect_On_Partial_View,
+	Set_Aspect_On_Partial_View): New flag for use by SPARK, to
+	indicate whether an aspect that appears on a type declaration
+	applies to the partial view of that type.
+	* sem_ch13.adb (Analyze_Aspect_Specification): Set new flag
+	appropriately.
+
+2019-12-12  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch13.adb (Same_Reprewentation): if the actual in a call is
+	a generic actual type, use its bsae type to determine whether a
+	change of representastion may be necessary for proper parameter
+	passing.
+
+2019-12-12  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_type.adb (Find_Unique_Type): A call to the universal
+	access equality operator requires one operand to be a universal
+	access, and the other to be an access type. There is no
+	requirement, as previously implied by this routine, that
+	pool-specific access types were illegal in this context.
+
+2019-12-12  Steve Baird  <baird@adacore.com>
+
+	* sem_ch6.adb
+	(New_Overloaded_Entity.Check_Conforming_Paramters): Add new
+	Conformance_Type parameter. With the value of
+	Subtype_Conformant, the behavior of Check_Conforming_Parameters
+	is unchanged.  The call in Matching_Entry_Or_Subprogram to
+	instead passes in Type_Conformant. This corresponds to the use
+	of "type conformant" in Ada RM 9.4(11.4/3).
+	(New_Overloaded_Entity.Has_Matching_Entry_Or_Subprogram): Add
+	new Normalized_First_Parameter_Type function to help in ignoring
+	the distinction between protected and access-to-protected first
+	parameters when checking prefixed-view profile matching. Replace
+	computations of the type of the first parameter with calls to
+	this function as appropriate.
+
+2019-12-12  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch5.adb: (Analyze_Iterator_Specification): If the
+	iteration is over a slice, complete the resolution of its
+	bounds, which may be aebitrary expressions. The previous
+	pre-analysis may have created itypes for the slice but has not
+	performed the expansion that for example may introduce actions
+	that specify explicit dereferences and run-time checks.
+
+2019-12-12  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch8.adb: Improve error message for dispatching subprogram
+	formals.
+
+2019-12-12  Gary Dismukes  <dismukes@adacore.com>
+
+	* exp_ch9.adb (Build_Protected_Entry): Set the Scope of the new
+	block to be the entity of the procedure created for the entry.
+
+2019-12-12  Steve Baird  <baird@adacore.com>
+
+	* sem_ch10.adb (Install_With_Clause): Check for the case of a
+	circular dependency involving a predefined (or GNAT-defined)
+	unit and handle that case by generating an appropropriate error
+	message.
+
+2019-12-12  Gary Dismukes  <dismukes@adacore.com>
+
+	* sem_ch4.adb, sem_res.adb: Minor reformatting.
+
+2019-12-12  Justin Squirek  <squirek@adacore.com>
+
+	* sem_ch4.adb (Analyze_One_Call): Add condition to check for
+	incorrectly resolved hidden controlled primitives.
+
+2019-12-12  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_res.adb: Fix processing of standard predefined operators.
+
+2019-12-12  Piotr Trojanek  <trojanek@adacore.com>
+
+	* libgnarl/a-dispat.ads (Yield): Update Global contract.
+
+2019-12-12  Piotr Trojanek  <trojanek@adacore.com>
+
+	* libgnat/g-altive.ads: Fix typo in comment.
+	* bindo-graphs.adb: Fix repeated words in comment.
+	* exp_ch4.adb: Likewise.
+	* exp_ch5.adb: Likewise.
+	* exp_ch7.adb: Likewise.
+	* exp_pakd.adb: Likewise.
+	* exp_unst.adb: Likewise.
+	* exp_util.adb: Likewise.
+	* freeze.adb: Likewise.
+	* inline.adb: Likewise.
+	* layout.adb: Likewise.
+	* sem_ch12.adb: Likewise.
+	* sem_ch13.adb: Likewise.
+	* sem_ch4.adb: Likewise.
+	* sem_ch9.adb: Likewise.
+	* sem_elab.adb: Likewise.
+	* doc/gnat_ugn/gnat_and_program_execution.rst: Fix repeated
+	words in user documentation.
+	* gnat_ugn.texi: Regenerate.
+
+2019-12-12  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* exp_attr.adb (Expand_Size_Attribute): Look directly at the
+	prefix to detect the bit-packed slices.  Apply the checks last
+	in case the attribute needs to be processed by the back-end.
+	* exp_ch4.adb (Expand_N_Slice): Do not create a temporary for
+	a prefix of the Size attribute.
+
+2019-12-12  Steve Baird  <baird@adacore.com>
+
+	* sem_ch12.adb
+	(Instantiate_Type.Validate_Derived_Type_Instance): Implement the
+	legality check of AI12-0036
+
+2019-12-12  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch10.adb (Analyze_Subunit): Fix spurious visibility error
+	on subunit with optimization.
+
+2019-12-12  Arnaud Charlet  <charlet@adacore.com>
+
+	* raise-gcc.c (__gnat_personality_v0): Define for SEH.
+
+2019-12-12  Gary Dismukes  <dismukes@adacore.com>
+
+	* exp_ch9.adb (Build_Protected_Entry): Analyze the block created
+	to hold the declarations and statements of the protected entry
+	body right after it's created, and then call Reset_Scopes_To on
+	that block to reset the Scope of nested entities to the block
+	scope.
+	(Reset_Scope): Add handling for N_Freeze_Entity nodes, calling
+	Reset_Scopes recursively on the Actions of such nodes. Also, for
+	subprogram bodies that are encountered that might not have a
+	separate declaration (such as type init procedures), reset the
+	Scope of the subprogram's entity.
+
+2019-12-12  Justin Squirek  <squirek@adacore.com>
+
+	* sem_attr.adb (Analyze_Attribute): Add error message for
+	invalid usage of Attribute_Result.
+
+2019-12-12  Bob Duff  <duff@adacore.com>
+
+	* sem_attr.adb (Eval_Attribute): Never mark T'Descriptor_Size as
+	static, even if T is a static subtype, because otherwise we will
+	request the value of the attribute, which will crash because we
+	have not evaluated it.
+
+2019-12-12  Ed Schonberg  <schonberg@adacore.com>
+
+	* exp_ch5.adb (Expand_N_Assognment_Statement): Extend the
+	processing involving private types with unknown discriminants to
+	handle the case where the full view of the type is an
+	unconstrained array type.
+
+2019-12-12  Bob Duff  <duff@adacore.com>
+
+	* sem_ch4.adb (Transform_Object_Operation): Deal properly with
+	prefix notation in instances.
+
+2019-12-12  Claire Dross  <dross@adacore.com>
+
+	* libgnat/a-cofove.adb, libgnat/a-cfinve.adb (Find_Index): Use
+	Extended_Index for call to Last.
+
+2019-12-12  Gary Dismukes  <dismukes@adacore.com>
+
+	* sem_ch3.adb, sem_util.adb: Minor reformatting.
+
+2019-12-12  Bob Duff  <duff@adacore.com>
+
+	* doc/gnat_ugn/gnat_utility_programs.rst: Update gnatmetric
+	documentation for average lengths
+
+2019-12-12  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch3.adb (Constrain_Access): Remove obsolete comments and
+	warning concerning component types of an access type whose
+	designated type is a constrained record type. (Such constraints
+	were previously ignored). Set scope of itype for component to
+	the scope of the enclosing record.
+	* sem_ch4.adb: Remove call to Set_Ekind.
+	* sem_util.adb (Build_Actual_Subtype_Of_Component): Handle
+	components whose type is an access to a constrained
+	discriminant, where the constraints may be given by the
+	discriminants of the enclosing type. New subprogram
+	Build_Access_Record_Constraint.
+
+2019-12-12  Justin Squirek  <squirek@adacore.com>
+
+	* exp_ch6.adb (Expand_Call_Helper): Added null case for
+	'Loop_Entry, 'Old, and 'Result when calculating whether to
+	create extra accessibility parameters.
+	* sem_util.adb (Dynamic_Accessibility_Level): Added null case
+	for 'Loop_Entry, 'Old, and 'Result when  calculating
+	accessibility level based on access-valued attributes.  Also
+	added special handling for uses of 'Loop_Entry when used in its
+	indexed component form.
+
+2019-12-12  Arnaud Charlet  <charlet@adacore.com>
+
+	* raise-gcc.c: Remove references to VMS
+
+2019-12-12  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* atree.ads, comperr.ads, debug.ads, einfo.ads, elists.ads,
+	err_vars.ads, errout.ads, exp_ch11.ads, exp_code.ads,
+	exp_dbug.ads, exp_tss.ads, exp_util.ads, lib.ads, namet.ads,
+	nlists.ads, opt.ads, repinfo.ads, restrict.ads, scos.ads,
+	sem_aggr.ads, sem_aux.ads, sem_eval.ads, sem_util.ads,
+	sinfo.ads, sinput.ads, stringt.ads, targparm.ads, types.ads,
+	urealp.ads warnsw.ads: Add WARNING line(s) in commentary.
+	* atree.h, elists.h, namet.h, nlists.h, repinfo.h, scos.h,
+	stringt.h, types.h, uintp.h, urealp.h: Tidy up.
+	* fe.h: Likewise.  Document WARNING mark.
+
+2019-12-12  Dmitriy Anisimkov  <anisimko@adacore.com>
+
+	* libgnat/g-comlin.ads (Get_Argument): New routine similar to
+	original Get_Argument but with one more out parameter
+	End_Of_Arguments.
+	(Get_Arguments): Comment improved.
+	* libgnat/g-comlin.adb (Get_Argument): Implementation taken from
+	original Get_Argument and improved.
+	(Get_Argument): Calls new routine Get_Argument with additional
+	parameter.
+
+2019-12-03  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/utils.c (potential_alignment_gap): Delete.
+	(rest_of_record_type_compilation): Do not call above function.  Use
+	the alignment of the field instead of that of its type, if need be.
+	When the original field has variable size, always lower the alignment
+	of the pointer type.  Reset the bit-field status of the new field if
+	it does not encode a bit-field.
+
+2019-12-03  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/utils.c (fold_convert_size): New function.
+	(fold_bit_position): Invoke it to do further folding.
+
+2019-12-03  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/decl.c (gnat_to_gnu_subprog_type): With the Copy-In/
+	Copy-Out mechanism, do not promote the mode of the return type to an
+	integral mode if it contains a field on a non-integral type and even
+	demote it for 64-bit targets.
+
+2019-11-25  Eric Botcazou  <ebotcazou@adacore.com>
+
+	PR ada/92362
+	* gcc-interface/trans.c (gnat_to_gnu) <N_Attribute_Definition_Clause>:
+	Use a temporary instead of clobbering the result with a freeze node.
+
+2019-11-25  Eric Botcazou  <ebotcazou@adacore.com>
+
+	PR ada/92575
+	* expect.c (__gnat_expect_poll [VMS, HPUX]): Fix typo.
+
+2019-11-06  Eric Botcazou  <ebotcazou@adacore.com>
+	    Alexandre Oliva  <oliva@adacore.com>
+
+	* gcc-interface/misc.c (callgraph_info_file): Delete.
+
+2019-10-27  Jakub Jelinek  <jakub@redhat.com>
+
+	* locales.c (iso_3166): Add missing comma after "United-States".
+
+2019-10-15  Arnaud Charlet  <charlet@adacore.com>
+
+	* Makefile.rtl (a-except.o): Put -O1 earlier so that it can be
+	overriden if needed by other variables.
+
+2019-10-12  Eric Botcazou  <ebotcazou@adacore.com>
+
+	PR ada/91995
+	* sem_ch8.adb (Chain_Use_Clause): Remove second argument in calls
+	to Defining_Entity.
+	* sem_elab.adb (Find_Unit_Entity): Likewise.  Deal with N_Subunit
+	here in lieu of in Defining_Entity.
+	* sem_util.ads (Defining_Entity): Remove 2nd and 3th parameters.
+	* sem_util.adb (Defining_Entity): Remove 2nd and 3th parameters,
+	and adjust accordingly.  Deal with N_Compilation_Unit.
+
+2019-10-11  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/decl.c (elaborate_reference_1): Specifically deal with
+	pointer displacement.
+
+	* gcc-interface/decl.c (components_to_record): Use proper name.
+
+	* gcc-interface/trans.c (Sloc_to_locus): Use standard types.
+
+2019-10-11  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/decl.c (gnat_to_gnu_field): Adjust again the packing
+	for a field without strict alignment and with an oversized clause.
+
+2019-10-11  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/decl.c (annotate_value) <INTEGER_CST>: Really test the
+	sign of the value when deciding to build a NEGATE_EXPR.
+	<PLUS_EXPR>: Remove redundant line.
+	<BIT_AND_EXPR>: Do the negation here.
+
+2019-10-11  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/decl.c (Gigi_Equivalent_Type) <E_Array_Subtype>: New
+	case.  Return the base type if the subtype is not constrained.
+
+2019-10-11  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Named_{Integer|Real}>:
+	New case to deal with the definition of named numbers.
+	<E_Variable>: Minor tweaks.  Set DECL_IGNORED_P on the CONST_DECL
+	if a corresponding variable is built.
+	* gcc-interface/trans.c (gnat_to_gnu) <N_Integer_Literal>: Return
+	error_mark_node instead of aborting on overflow for named numbers.
+	<N_Number_Declaration>: Reuse the <N_Object_Declaration> case and
+	deal with error_mark_node specifically.
+	* gcc-interface/utils.c (create_var_decl): Do not set DECL_IGNORED_P
+	on CONST_DECLs.
+	(gnat_write_global_declarations): Output global constants.
+
+2019-10-10  Gary Dismukes  <dismukes@adacore.com>
+
+	* exp_ch7.adb (Check_Unnesting_In_Decls_Or_Stmts): When
+	encountering a loop at the top level of a package declaration
+	list (that is, within the declarations of a package spec or
+	body) that has nested subprograms, call Unnest_Loop to create a
+	new library-level procedure that will contain the loop, to allow
+	for proper handling of up-level references from within nested
+	subprograms, such as to loop parameters.
+	(Unnest_Loop): New procedure that takes a loop statement and
+	creates a new procedure body to enclose the loop statement,
+	along with generating a call to the procedure.
+
+2019-10-10  Arnaud Charlet  <charlet@adacore.com>
+
+	* freeze.adb (Freeze_Subprogram): Ensure constructor is a C++
+	constructor.
+
+2019-10-10  Gary Dismukes  <dismukes@adacore.com>
+
+	* libgnat/a-ststio.ads (File_Type): Apply pragma
+	Preelaborable_Initialization to the type.
+
+2019-10-10  Yannick Moy  <moy@adacore.com>
+
+	* inline.adb (Can_Be_Inlined_In_GNATprove_Mode): Do not peek
+	under private types whose completion is SPARK_Mode Off.
+
+2019-10-10  Gary Dismukes  <dismukes@adacore.com>
+
+	* exp_ch4.adb, sem_cat.adb, sem_ch12.adb, sem_ch3.adb,
+	sem_ch6.adb, sem_prag.adb, sem_util.adb, sem_util.ads: Minor
+	typo fixes.
+
+2019-10-10  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_warn.adb (Warn_On_Useless_Assignment): Do not warn if the
+	second assignment is at the same source position as the first.
+
+2019-10-10  Gary Dismukes  <dismukes@adacore.com>
+
+	* sem_util.adb (Enclosing_Subprogram): Handle the case of
+	E_Entry_Family, returning the entry family's associated
+	Protected_Body_Subprogram (as was already done for E_Entry).
+	* exp_ch9.adb (Expand_N_Accept_Statement): Call Reset_Scopes_To
+	on the block created for an accept statement to reset the scopes
+	of any local entities to the block scope.
+
+2019-10-10  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch12.adb (Analyze_Formal_Package_Declaration): Propagate
+	an aspect specification for Abstract_State from generic package
+	to formal package, so that it is available when analyzing the
+	constructed formal.
+
+2019-10-10  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_ch6.adb (Set_Actual_Subtypes): Put the freeze node of the
+	actual subtype after its declaration when the type of the formal
+	has a predicate.
+
+2019-10-10  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_ch13.adb (Adjust_Record_For_Reverse_Bit_Order): Do not use
+	the Esize of the component to compute its layout, but only the
+	Component_Clause.  Do not issue a warning for the _Tag
+	component.  Also set the Esize of the component at the end of
+	the layout.
+	(Analyze_Record_Representation_Clause): Remove Hbit local
+	variable.  Lay out the Original_Record_Component only if it's
+	distinct from the component.
+	(Check_Record_Representation_Clause): Fix off-by-one bug for the
+	Last_Bit of the artificial clause built for the _Tag component.
+
+2019-10-10  Bob Duff  <duff@adacore.com>
+
+	* treepr.ads, treepr.adb (ppar): New procedure.
+
+2019-10-10  Bob Duff  <duff@adacore.com>
+
+	* sem_aggr.adb (Resolve_Aggregate): Add missing cases in the
+	Others_Allowed => True case -- N_Case_Expression_Alternative and
+	N_If_Expression.  Use Nkind_In.
+	* atree.adb, atree.ads, sinfo.adb, sinfo.ads (Nkind_In): New
+	16-parameter version.
+
+2019-10-10  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_aggr.adb (Resolve_Array_Aggregate): Set properly the
+	Predicated_Parent link of an itype created for an aggregate, so
+	that the predicate_function of the parent can support proofs on
+	the object that it initializes.
+
+2019-10-10  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_ch3.adb (Analyze_Number_Declaration): Set
+	Debug_Info_Needed in the case where the expression is an integer
+	literal.
+
+2019-10-10  Yannick Moy  <moy@adacore.com>
+
+	* inline.adb (Can_Be_Inlined_In_GNATprove_Mode): Add subprograms
+	with deep parameter or result type as not candidates for
+	inlining.
+
+2019-10-10  Vadim Godunko  <godunko@adacore.com>
+
+	* libgnat/g-exptty.ads (TTY_Process_Descriptor): Set default
+	value for Process.
+
+2019-10-10  Bob Duff  <duff@adacore.com>
+
+	* sem_prag.adb (Defer_Compile_Time_Warning_Error_To_BE): In
+	addition to saving the pragma for further processing, copy the
+	pragma into the main unit if necessary.
+
+2019-10-10  Bob Duff  <duff@adacore.com>
+
+	* einfo.ads, einfo.adb (Invariants_Ignored): New flag on types.
+	This leaves just one unused flag.
+	* sem_prag.adb (Invariant): Set the flag if appropriate.
+	* exp_util.adb (Make_Invariant_Call): Check the flag.
+
+2019-10-10  Arnaud Charlet  <charlet@adacore.com>
+
+	* gnat1drv.adb (Gnat1drv): Skip code generation when handling an
+	incomplete unit with -gnatceg.
+
+2019-10-10  Gary Dismukes  <dismukes@adacore.com>
+
+	* exp_ch7.adb (Check_Unnesting_Elaboration_Code): Various
+	cleanups.
+	(Set_Elab_Proc): New procedure to create the defining identifier
+	for a procedure created to encapsulate top-level blocks
+	occurring as a part of library package elaboration.
+	(First_Local_Scope): Function replaced by
+	Reset_Scopes_To_Elab_Proc.
+	(Reset_Scopes_To_Elab_Proc): New recursive procedure based on
+	First_Local_Scope, which it replaces, that is called to traverse
+	the statements of a library package body to locate top-level
+	blocks and determine whether they contain nested subprograms
+	that might address library-level objects of the package. Such
+	blocks (and loops) and certain top-level subprograms within the
+	statements will have their Scope reset here to match an
+	encapsulating procedure created by
+	Check_Unnesting_Elaboration_Code that will contain the
+	statements.
+	(Check_Unnesting_In_Decls_Or_Stmts): Code for handling blocks
+	factored out into Unnest_Block. Add handling for package
+	declarations and bodies, making recursive calls for
+	visible/private declarations, body declarations, statements, and
+	exception handlers. Also remove test for Is_Compilation_Unit:
+	caller tests for Is_Library_Level_Entity instead.  Also, this
+	proc's name was changed from Check_Unnesting_In_Declarations.
+	(Check_Unnesting_In_Handlers): New procedure to traverse a
+	sequence of exception handlers, calling
+	Check_Unnesting_In_Decls_Or_Stmts on the statements of each
+	handler.
+	(Expand_N_Package_Body): Call Check_Unnesting_* routines only
+	when Unnest_Subprogram_Mode is set and the current scope is a
+	library-level entity (which includes packages and instantiations
+	nested directly within a library unit).
+	(Expand_N_Package_Declaration): Call Check_Unnesting_* routines
+	only when Unnest_Subprogram_Mode is set and the current scope is
+	a library-level entity (which includes packages and
+	instantiations nested directly within a library unit).
+	(Unnest_Block): New procedure factored out of
+	Check_Unnesting_In_Decls_Or_Stmts, for creating a new procedure
+	to replace a block statement and resetting the Scope fields of
+	the block's top-level entities.
+
+2019-10-10  Anthony Leonardo Gracio  <leonardo@adacore.com>
+
+	* doc/gnat_ugn/about_this_guide.rst,
+	doc/gnat_ugn/building_executable_programs_with_gnat.rst,
+	doc/gnat_ugn/getting_started_with_gnat.rst,
+	doc/gnat_ugn/gnat_and_program_execution.rst, errout.ads,
+	exp_ch3.adb, gnatls.adb, impunit.adb, lib-writ.ads, opt.ads,
+	sem_ch7.adb, sem_prag.adb, sem_res.adb, sem_warn.adb,
+	terminals.c: Replace GPS by GNAT Studio.
+	* gnat_ugn.texi: Regenerate.
+
+2019-10-10  Ed Schonberg  <schonberg@adacore.com>
+
+	* exp_ch6.adb (Expand_Simple_Function_Return_Statement): If the
+	function to which the return statement applies is an
+	Ignored_Ghost_Function, do not indicate that it uses the
+	secondary stack when the return type is unconstrained.
+
+2019-10-10  Bob Duff  <duff@adacore.com>
+
+	* libgnat/a-cbdlli.adb, libgnat/a-cbhama.adb,
+	libgnat/a-cbhase.adb, libgnat/a-cbmutr.adb,
+	libgnat/a-cborma.adb, libgnat/a-cborse.adb,
+	libgnat/a-cdlili.adb, libgnat/a-cidlli.adb,
+	libgnat/a-cihama.adb, libgnat/a-cihase.adb,
+	libgnat/a-cimutr.adb, libgnat/a-ciorma.adb,
+	libgnat/a-ciorse.adb, libgnat/a-cobove.adb,
+	libgnat/a-cohama.adb, libgnat/a-cohase.adb,
+	libgnat/a-coinve.adb, libgnat/a-comutr.adb,
+	libgnat/a-conhel.adb, libgnat/a-convec.adb,
+	libgnat/a-coorma.adb, libgnat/a-coorse.adb (Reference,
+	Constant_Reference): Use Busy instead of Lock, so we forbid
+	tampering with cursors, rather than tampering with elements.
+
+2019-10-10  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_cat.adb (Set_Categorization_From_Pragma): Do not modify
+	any visibility settings if there are no compilation_unit pragmas
+	following the package declaration. Add comments for future
+	cleanup.
+
+2019-10-10  Patrick Bernardi  <bernardi@adacore.com>
+
+	* bindgen.adb (System_Secondary_Stack_Package_In_Closure):
+	Renamed flag System_Secondary_Stack_Used to be clearer of what
+	it represents.
+	(Gen_Adainit): Refactor secondary stack related code to make it
+	clearer.
+	* rtsfind.adb (Load_RTU): Don't set Sec_Stack_Used flag here
+	(RTE): Set Sec_Stack_Used if the System.Secondary_Stack is
+	referenced, but not if we're ignoring ghost code.
+
+2019-10-10  Piotr Trojanek  <trojanek@adacore.com>
+
+	* sem_prag.adb (Analyze_Global_In_Decl_Part): Simplify previous
+	test, just like in a recent commit we simplified a similar test
+	for Depends contract.
+
+2019-10-04  Joseph Myers  <joseph@codesourcery.com>
+
+	* gcc-interface/utils.c (flag_isoc2x): New variable.
+
+2019-10-01  Maciej W. Rozycki  <macro@wdc.com>
+
+	* gcc-interface/Makefile.in (ADA_RTL_DSO_DIR): New variable.
+	(install-gnatlib): Use it in place of ADA_RTL_OBJ_DIR for shared 
+	library installation.
+
+2019-10-01  Maciej W. Rozycki  <macro@wdc.com>
+
+	* gcc-interface/Make-lang.in (ada.install-common): Split into...
+	(gnat-install-tools, gnat-install-lib): ... these.
+
+2019-09-26  Alexandre Oliva <oliva@adacore.com>
+
+	* gcc-interface/decl.c (components_to_record): Set
+	DECL_SIZE_UNIT for zero-sized fields.
+
+2019-09-26  Arnaud Charlet  <charlet@adacore.com>
+
+	* osint.adb (OS_Time_To_GNAT_Time): Remove dependency on To_C/To_Ada
+
+2019-09-23  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	* libgnarl/s-osinte__solaris.ads (sysconf): Declare.
+	(SC_NPROCESSORS_ONLN): Define.
+	* libgnarl/s-tasinf__solaris.ads (Number_Of_Processors): Declare.
+	* libgnarl/s-tasinf__solaris.adb (N_CPU): New variable.
+	(Number_Of_Processors): New function.
+
+2019-09-23  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/trans.c (Regular_Loop_to_gnu): Do not rotate the loop
+	if -Og is enabled.
+	(build_return_expr): Do not perform NRV if -Og is enabled.
+	(Subprogram_Body_to_gnu): Likewise.
+	(gnat_to_gnu) <N_Simple_Return_Statement>: Likewise.
+	(Handled_Sequence_Of_Statements_to_gnu): Do not inline finalizers if
+	-Og is enabled.
+	* gcc-interface/utils.c (convert_to_index_type): Return early if -Og
+	is enabled.
+
+2019-09-23  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/trans.c (gnat_compile_time_expr_list): New variable.
+	(Pragma_to_gnu): Rename local variable.  Save the (first) expression
+	of pragma Compile_Time_{Error|Warning} for later processing.
+	(Compilation_Unit_to_gnu): Process the expressions saved above.
+
+2019-09-23  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/trans.c (Attribute_to_gnu): Test Can_Use_Internal_Rep
+	on the underlying type of the node.
+	(Call_to_gnu): Likewise with the type of the prefix.
+
+2019-09-23  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/decl.c (components_to_record): Do not reorder fields
+	in packed record types if they contain fixed-size fields that cannot
+	be laid out in a packed manner.
+
+2019-09-19  Tom Tromey  <tromey@adacore.com>
+
+	* gcc-interface/misc.c (gnat_get_type_bias): Return the bias
+	when -fgnat-encodings=gdb.
+
+2019-09-19  Steve Baird  <baird@adacore.com>
+
+	* sem_prag.adb (Preferred_String_Type): A new function. Given an
+	expression, determines whether the preference rules defined for
+	the third-and-later arguments of pragma Annotate suffice to
+	determine the type of the expression. If so, then the preferred
+	type is returned; if not then Empty is returned. Handles
+	concatenations.
+	(Analyze_Pragma): Replace previous code, which dealt only with
+	string literals, with calls to the new Preferred_String_Type
+	function, which also handles concatenations.
+	* doc/gnat_rm/implementation_defined_pragmas.rst: Update
+	documentation for pragma Annotate.
+	* gnat_rm.texi: Regenerate.
+
+2019-09-19  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* exp_util.adb (Is_Possibly_Unaligned_Slice): Do not return true
+	on pure alignment considerations if the target does not require
+	the strict alignment of memory accesses.
+
+2019-09-19  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_ch12.adb (Check_Private_View): Add a comment to indicate
+	future work.
+
+2019-09-19  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* exp_aggr.adb (Has_Mutable_Components): Look at the underlying
+	type of components to find out whether they are mutable.
+
+2019-09-19  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_ch12.adb (Instantiate_Package_Body): Check that the body
+	has not already been instantiated when the body of the parent
+	was being loaded.
+
+2019-09-19  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_util.adb (In_Instance): Test whether the current unit has
+	been analyzed instead of being on the scope stack to detect the
+	case of actuals of an instantiation of a generic child unit done
+	as a compilation unit.
+
+2019-09-19  Dmitriy Anisimkov  <anisimko@adacore.com>
+
+	* libgnat/g-socket.ads, libgnat/g-socket.adb
+	(Create_Socket_Pair): New routine.
+	* libgnat/g-socthi.ads (OS_Has_Socketpair): Boolean constant.
+	(C_Socketpair): New imported routine.
+	* libgnat/g-socthi__mingw.ads, libgnat/g-socthi__vxworks.ads
+	(Default_Socket_Pair_Family): New constant.
+	(C_Socketpair): New routine.
+	* libgnat/g-socthi__mingw.adb, libgnat/g-socthi__vxworks.adb
+	(C_Socketpair): Is separated in anouther file.
+	* libgnat/g-sthcso.adb (C_Socketpair): Non UNIX implementation.
+	* libgnat/g-stsifd__sockets.adb: Reuse C_Socketpair.
+
+2019-09-19  Yannick Moy  <moy@adacore.com>
+
+	* sem_prag.adb (Analyze_Depends_In_Decl_Part): Simplify previous
+	test.
+
+2019-09-19  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch7.adb (Install_Parent_Private_Declarations): If a
+	generic child unit is instantiated within a sibling child unit,
+	the analysis of its private part requires that the private part
+	of the ancestor be available, as is done when the context
+	includes an instance of the ancestor.
+
+2019-09-19  Yannick Moy  <moy@adacore.com>
+
+	* inline.adb (Can_Be_Inlined_In_GNATprove_Mode): Add special
+	case for traversal functions.
+
+2019-09-19  Yannick Moy  <moy@adacore.com>
+
+	* sem_prag.adb (Analyze_Global_In_Decl_Part): Do not issue an
+	error when a constant of an access type is used as output in a
+	Global contract.
+	(Analyze_Depends_In_Decl_Part): Do not issue an error when a
+	constant of an access type is used as output in a Depends
+	contract.
+
+2019-09-19  Arnaud Charlet  <charlet@adacore.com>
+
+	* exp_attr.adb: Remove obsolete comment.
+
+2019-09-19  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_ch3.adb (Build_Derived_Access_Type): If this is an access-
+	to-subprogram type, copy Can_Use_Internal_Rep from the parent.
+
+2019-09-19  Yannick Moy  <moy@adacore.com>
+
+	* gcc-interface/Make-lang.in: Remove references to sem_spark.
+	* sem_spark.adb, sem_spark.ads: Remove unit.
+
+2019-09-19  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* exp_attr.adb (Is_Inline_Floating_Point_Attribute): Treat
+	Machine_Rounding as an alias for Rounding.
+	* sem_res.adb (Simplify_Type_Conversion): Likewise.
+
+2019-09-19  Gary Dismukes  <dismukes@adacore.com>
+
+	* exp_unst.adb (Unnest_Subprogram): Bypass the transformation of
+	up-level references unless Opt.Generate_C_Code is enabled.
+
+2019-09-19  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* exp_ch4.adb (Expand_Array_Equality): If optimization is
+	enabled, generate a simple conjunction of comparisons for the
+	specific case of constrained 1-dimensional 2-element arrays.
+	Fix formatting.
+
+2019-09-19  Piotr Trojanek  <trojanek@adacore.com>
+
+	* exp_dbug.ads, exp_dbug.adb (Get_Homonym_Number): Remove.
+	(Append_Homonym_Number): Use Homonym_Number instead of
+	Get_Homonym_Number.
+	* exp_util.ads, exp_util.adb (Homonym_Number): Mirror style of
+	the removed Get_Homonym_Number routine, i.e. initialize local
+	objects at declaration and refine the type of result.
+	* sem_util.adb (Add_Homonym_Suffix): Use Homonym_Number instead
+	of Get_Homonym_Number.
+
+2019-09-19  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch13.adb (Check_Aspect_At_End_Of_Declarations): Simplify
+	handling of expressions in predicates when the context is a
+	generic unit.
+
+2019-09-19  Bob Duff  <duff@adacore.com>
+
+	* sem_attr.adb (Resolve_Attribute): Make sure the secondary
+	stack is properly managed in the case of a 'Range attribute in a
+	loop.
+
+2019-09-19  Raphael Amiard  <amiard@adacore.com>
+
+	* libgnat/a-cfhase.ads (Set): Add comments to public primitives.
+
+2019-09-19  Raphael Amiard  <amiard@adacore.com>
+
+	* libgnat/a-cbhama.ads, libgnat/a-cbhase.ads,
+	libgnat/a-chtgop.ads (Clear): Refine comments
+
+2019-09-19  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_ch12.adb (Restore_Private_Views): Comment out new code
+	that clear the Is_Generic_Actual_Type also on the full view.
+
+2019-09-19  Bob Duff  <duff@adacore.com>
+
+	* exp_ch3.adb (Rewrite_As_Renaming): Return False if there are
+	any aspect specifications, because otherwise Insert_Actions
+	blows up.
+
+2019-09-19  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* exp_ch6.adb (Add_Simple_Call_By_Copy_Code): Add
+	Bit_Packed_Array parameter and documet it. Always insert a copy
+	if it is set True.
+	(Expand_Actuals): Adjust the calls to
+	Add_Simple_Call_By_Copy_Code.
+
+2019-09-19  Bob Duff  <duff@adacore.com>
+
+	* xref_lib.adb (Get_Symbol_Name): If we reach EOF in the first
+	loop without finding the symbol, return "???". Otherwise, it's
+	an infinite loop.
+	(Parse_EOL): Assert that we're not already at EOF.  Remove
+	processing of LF/CR -- there are no operating systems that use
+	that.
+
+2019-09-19  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* exp_ch6.adb (Is_Legal_Copy): Also return false for an aliased
+	formal and a formal passed by reference in convention Ada.  Add
+	missing guard to the existing test on Is_Valued_Procedure.
+
+2019-09-19  Bob Duff  <duff@adacore.com>
+
+	* rtsfind.ads (RTE_Available): Improve comment.
+
+2019-09-18  Bob Duff  <duff@adacore.com>
+
+	* exp_ch5.adb (Expand_Assign_Array_Loop_Or_Bitfield): Move call
+	to RTE_Available later, so it doesn't disturb the elab order.
+	The RE_Copy_Bitfield entity is defined in package
+	System.Bitfields which has a dependency on package
+	System.Bitfield_Utils, which has it its spec:
+	   pragma Elaborate_Body;
+	The query on RTE_Available forces loading and analyzing
+	System.Bitfields and all its withed units.
+
+2019-09-18  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* checks.ads (Alignment_Warnings_Record): Add P component.
+	* checks.adb (Apply_Address_Clause_Check): Be prepared to kill
+	the warning also if the clause is of the form X'Address.
+	(Validate_Alignment_Check_Warning): Kill the warning if the
+	clause is of the form X'Address and the alignment of X is
+	compatible.
+
+2019-09-18  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_res.adb (Set_Mixed_Node_Expression): If a conditional
+	expression has universal_real alternaitves and the context is
+	Universal_Fixed, as when it is an operand in a fixed-point
+	multiplication or division, resolve the expression with a
+	visible fixed-point type, which must be unique.
+
+2019-09-18  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch3.adb (Constrain_Component_Type): For a discriminated
+	type, handle the case of a constraint given by a conversion of a
+	discriminant of the enclosing type. Necessary when compiling a
+	discriminated task for a restricted run-time, when the generated
+	Secondary_Stack component may be set by means of an aspect on
+	the task type.
+
+2019-09-18  Ed Schonberg  <schonberg@adacore.com>
+
+	* exp_aggr.adb (Expand_Record_Aggregate, Rewrite_Discriminant):
+	After rewriting a reference to an outer discriminant as a
+	selected component of the enclosing object, analyze the selected
+	component to ensure that the entity of the selector name is
+	properly set. This is necessary when the aggregate appears
+	within an expression that may have been analyzed already.
+
+2019-09-18  Justin Squirek  <squirek@adacore.com>
+
+	* sem_ch8.adb (Use_One_Type): Add guard to prevent warning on a
+	reundant use package clause where there is no previous
+	use_clause in the chain.
+
+2019-09-18  Justin Squirek  <squirek@adacore.com>
+
+	* exp_ch4.adb (Expand_N_Type_Conversion): Add calculation of an
+	alternative operand for the purposes of generating accessibility
+	checks.
+
+2019-09-18  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* exp_aggr.adb (Build_Array_Aggr_Code): In STEP 1 (c), duplicate
+	the expression and reset the Loop_Actions for each loop
+	generated for an others choice.
+
+2019-09-18  Justin Squirek  <squirek@adacore.com>
+
+	* einfo.adb, einfo.ads (Minimum_Accessibility): Added new field.
+	(Set_Minimum_Accessibility): Added to set new field.
+	(Minimum_Accessibility): Added to fetch new field.
+	* exp_ch6.adb (Expand_Subprogram_Call): Modify calls to fetch
+	accessibility levels to the new subprogram Get_Accessibility
+	which handles cases where minimum accessibility might be needed.
+	* sem_ch6.adb (Analyze_Subprogram_Body_Helper): Add section to
+	generate a Minimum_Accessibility object within relevant
+	subprograms.
+	* sem_util.adb, sem_util.ads (Dynamic_Accessibility_Level):
+	Additional documentation added and modify section to use new
+	function Get_Accessibility.
+	(Get_Accessibility): Added to centralize processing of
+	accessibility levels.
+
+2019-09-18  Steve Baird  <baird@adacore.com>
+
+	* sem_util.ads (Interval_Lists): A new visible package. This
+	package is visible because it is also intended for eventual use
+	in Sem_Eval.Subtypes_Statically_Compatible when that function is
+	someday upgraded to handle static predicates correctly.  This
+	new package doesn't really need to be visible for now, but it
+	still seems like a good idea.
+	* sem_util.adb (Gather_Components): Implement AI12-0086 via the
+	following strategy. The existing code knows how to take a static
+	discriminant value and identify the corresponding variant; in
+	the newly-permitted case of a non-static value of a static
+	subtype, we arbitrarily select a value of the subtype and find
+	the corresponding variant using the existing code. Subsequently,
+	we check that every other value of the discriminant's subtype
+	corresponds to the same variant; this is done using the newly
+	introduced Interval_Lists package.
+	(Interval_Lists): Provide a body for the new package.
+
+2019-09-18  Javier Miranda  <miranda@adacore.com>
+
+	* exp_ch4.adb (Expand_N_Op_Eq): The frontend assumes that we can
+	do a bit-for-bit comparison of two access to protected
+	subprogram pointers. However, there are two reasons why we may
+	not be able to do that: (1) there may be padding bits for
+	alignment before the access to subprogram, and (2) the access to
+	subprogram itself may not be compared bit-for- bit because the
+	activation record part is undefined: two pointers are equal iff
+	the subprogram addresses are equal. This patch fixes it by
+	forcing a field-by-field comparison.
+	* bindgen.adb (Gen_Adainit): The type No_Param_Proc is defined
+	in the library as having Favor_Top_Level, but when we create an
+	object of that type in the binder file we don't have that
+	pragma, so the types are different. This patch fixes this issue.
+	* libgnarl/s-interr.adb, libgnarl/s-interr__hwint.adb,
+	libgnarl/s-interr__sigaction.adb, libgnarl/s-interr__vxworks.adb
+	(Is_Registered): This routine erroneously assumes that the
+	access to protected subprogram is two addresses. We need to
+	create the same record that the compiler makes to ensure that
+	any padding is the same. Then we have to look at just the first
+	word of the access to subprogram. This patch fixes this issue.
+
+2019-09-18  Bob Duff  <duff@adacore.com>
+
+	* exp_ch5.adb (Expand_Assign_Array_Loop_Or_Bitfield): The call
+	to Copy_Bitfield is now enabled.
+	(Expand_Assign_Array_Bitfield): Multiply 'Length times
+	'Component_Size "by hand" instead of using 'Size.
+
+2019-09-18  Vasiliy Fofanov  <fofanov@adacore.com>
+
+	* doc/gnat_rm/implementation_defined_pragmas.rst: Fix minor
+	formatting issue.
+
+2019-09-18  Javier Miranda  <miranda@adacore.com>
+
+	* exp_disp.adb (Make_DT, Make_Secondary_DT): Remove generation
+	of alignment representation clause for the following tables:
+	Predef_Prims, Iface_DT, TSD, ITable, DT.
+
+2019-09-18  Steve Baird  <baird@adacore.com>
+
+	* sem_eval.adb (Expr_Value): Do not fail "the type of a null
+	literal must be an access type" assertion if errors have already
+	been posted on the given node.
+
+2019-09-18  Piotr Trojanek  <trojanek@adacore.com>
+
+	* exp_dbug.ads, exp_dbug.adb (Get_Homonym_Number): Refine type
+	from Nat to Pos.
+	* sem_util.adb (Add_Homonym_Suffix): Refine type of a local
+	variable.
+
+2019-09-18  Yannick Moy  <moy@adacore.com>
+
+	* exp_dbug.adb (Append_Homonym_Number): Use new function
+	Get_Homonym_Number.
+	(Get_Homonym_Number): New function to return the homonym number.
+	(Qualify_Entity_Name): Remove special case for GNATprove.
+	* exp_dbug.ads (Get_Homonym_Number): Make the new function
+	public for use in GNATprove.
+	* frontend.adb (Frontend): Do not qualify names in GNATprove
+	mode.
+	* sem_util.adb (Unique_Name): Append homonym suffix where needed
+	for entities which have local homonyms in the same scope.
+
+2019-09-18  Nicolas Roche  <roche@adacore.com>
+
+	* libgnat/s-valrea.adb (Scan_Integral_Digits): New procedure.
+	(Scan_Decimal_Digits): New procedure.
+	(As_Digit): New function.
+	(Scan_Real): Use Scan_Integral_Digits and Scan_Decimal_Digits.
+
+2019-09-18  Claire Dross  <dross@adacore.com>
+
+	* exp_attr.adb (Expand_N_Attribute_Reference): Call routine from
+	Exp_Util to know the value of the Constrained attribute in the
+	static case.
+	* exp_spark.adb (Expand_SPARK_N_Attribute_Reference): Make
+	implicit dereferences inside the Constrained attribute explicit.
+	* exp_util.ads, exp_util.adb
+	(Attribute_Constrained_Static_Value): New routine to compute the
+	value of a statically known reference to the Constrained
+	attribute.
+
+2019-09-18  Vadim Godunko  <godunko@adacore.com>
+
+	* libgnat/g-expect.adb (Expect_Internal): Don't include invalid
+	file descriptors into the set of file descriptors for Poll.
+	Raise Process_Died exception when computed set of file
+	descriptors to monitor is empty.
+
+2019-09-18  Frederic Konrad  <konrad@adacore.com>
+
+	* adaint.c: Include dosFsLib.h and vwModNum.h for VxWorks 6.
+	(__gnat_rename): Map S_dosFsLib_FILE_NOT_FOUND to ENOENT.
+
+2019-09-18  Steve Baird  <baird@adacore.com>
+
+	* freeze.adb (Freeze_Object_Declaration): Do not call
+	Check_Large_Modular_Array when the object declaration being
+	frozen is an ignored ghost entity.
+
+2019-09-18  Tom Tromey  <tromey@adacore.com>
+
+	* make.adb (Initialize): Fix typo.
+
+2019-09-18  Olivier Hainque  <hainque@adacore.com>
+
+	* libgnat/s-win32.ads (DWORD_PTR): New type, pointer size
+	unsigned int.
+	(SYSTEM_INFO): Use it for dwActiveProcessorMask.
+
+2019-09-18  Arnaud Charlet  <charlet@adacore.com>
+
+	* doc/gnat_rm/implementation_defined_pragmas.rst: Improve doc on
+	Warning_As_Error.
+	* gnat_rm.texi: Regenerate.
+
+2019-09-18  Arnaud Charlet  <charlet@adacore.com>
+
+	* doc/gnat_rm/implementation_defined_characteristics.rst,
+	doc/gnat_rm/implementation_defined_pragmas.rst,
+	doc/gnat_rm/implementation_of_specific_ada_features.rst: Remove
+	remaining references to VMS support
+	* gnat_rm.texi: Regenerate.
+
+2019-09-18  Arnaud Charlet  <charlet@adacore.com>
+
+	* libgnat/s-stausa.adb: Fix a typo
+
+2019-09-18  Bob Duff  <duff@adacore.com>
+
+	* libgnat/a-cbhama.adb, libgnat/a-cbhase.adb,
+	libgnat/a-cbmutr.adb, libgnat/a-cborma.adb,
+	libgnat/a-cborse.adb, libgnat/a-cobove.adb (Copy): Avoid reading
+	the uninitialized variable C in the Checks = False case. Change
+	variable to be a constant.
+
+2019-09-18  Claire Dross  <dross@adacore.com>
+
+	* libgnat/a-cofuma.adb (Remove, Elements_Equal_Except,
+	Keys_Included, Keys_Included_Except): Rename loop indexes and
+	global constants from I to J.
+
+2019-09-18  Arnaud Charlet  <charlet@adacore.com>
+
+	* exp_unst.adb (Unnest_Subprograms): Refine previous change.
+
+2019-09-17  Claire Dross  <dross@adacore.com>
+
+	* libgnat/a-cofuma.ads, libgnat/a-cofuma.adb (Remove): New
+	function which returns a copy of the input container without a
+	given mapping.
+
+2019-09-17  Yannick Moy  <moy@adacore.com>
+
+	* libgnat/s-arit64.adb (Double_Divide): Correctly handle the
+	special case when rounding.
+
+2019-09-17  Javier Miranda  <miranda@adacore.com>
+
+	* sem_ch3.adb (Complete_Private_Subtype): Propagate attributes
+	Has_Attributes and Predicate_Function to the cloned subtype.
+
+2019-09-17  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem.adb (Do_Analyze): Save Style_Check_Max_Line_Length on
+	entry and restore it on exit instead of recomputing it.
+
+2019-09-17  Tom Tromey  <tromey@adacore.com>
+
+	* exp_dbug.ads: Update character type comment.
+
+2019-09-17  Yannick Moy  <moy@adacore.com>
+
+	* libgnat/s-arit64.adb (Double_Divide): Simplify needlessly
+	complex computation. Fix comments.
+	(Scaled_Divide): Fix comments. Explain why implementation does
+	not suffer from bugs in Algorithm D from 2nd Edition of TAOCP.
+
+2019-09-17  Yannick Moy  <moy@adacore.com>
+
+	* libgnat/s-arit64.adb (Scaled_Divide): Add protection against
+	undesirable wrap-around.
+
+2019-09-17  Yannick Moy  <moy@adacore.com>
+
+	* libgnat/s-arit64.adb (Double_Divide): Fix two possible
+	overflows.
+
+2019-09-17  Dmitriy Anisimkov  <anisimko@adacore.com>
+
+	* make_util.ads (On_Windows): Move...
+	* osint.ads (On_Windows): There.
+	* osint.adb (OS_Time_To_GNAT_Time): If odd incremented on
+	Windows before conversion to Time_Stamp_Type.
+
+2019-09-17  Yannick Moy  <moy@adacore.com>
+
+	* sem_spark.adb (Check_Declaration): Do not check the assignment
+	from an illegal declaration.
+
+2019-09-17  Bob Duff  <duff@adacore.com>
+
+	* doc/gnat_ugn/gnat_and_program_execution.rst: Clarify
+	documentation.
+	* gnat_ugn.texi: Regenerate.
+	* libgnat/s-stausa.ads: Clarify comments.
+
+2019-09-17  Steve Baird  <baird@adacore.com>
+
+	* sem_util.adb (Wrong_Type): In deciding to suppress a message,
+	it is not enough for In_Instance to be True; in addition,
+	In_Generic_Actual (Expr) must be False.
+	* sem_type.adb (In_Generic_Actual): Fix bug where traversal of
+	parents skips every other node.
+
+2019-09-17  Claire Dross  <dross@adacore.com>
+
+	* sem_spark.adb (Get_Observed_Or_Borrowed_Expr): If the
+	definition of a local borrower contains calls to traversal
+	functions, the borrowed expression is the first parameter of the
+	first traversal function call in the definition.
+
+2019-09-17  Ed Falis  <falis@adacore.com>
+
+	* doc/gnat_rm/implementation_defined_pragmas.rst: Remove
+	section.
+	* gnat_rm.texi, gnat_ugn.texi: Regenerate.
+
+2019-09-17  Vadim Godunko  <godunko@adacore.com>
+
+	* libgnat/g-exptty.ads (Close_Input): New subprogram.
+	* libgnat/g-exptty.adb (Close_Input): New subprogram.
+	(Close): Move close of TTY to Close_Input.
+	* terminals.c (__gnat_close_tty): Set file descriptors to
+	invalid value after close.
+
+2019-09-17  Vadim Godunko  <godunko@adacore.com>
+
+	* libgnat/g-expect.adb (Expect_Internal): Try to call 'poll' few
+	times.
+
+2019-09-17  Vadim Godunko  <godunko@adacore.com>
+
+	* libgnat/g-expect.ads, libgnat/g-expect.adb (Close_Input): New
+	subprogram.
+	(Get_Command_Output): Call Close_Input to close input stream.
+	(Expect_Internal): Likewise.
+	(Close): Likewise.
+	* libgnat/g-exptty.adb (Close): Likewise.
+
+2019-09-17  Piotr Trojanek  <trojanek@adacore.com>
+
+	* sem_util.ads, sem_util.adb (Is_Attribute_Old): New utility
+	routine.
+
+2019-09-17  Yannick Moy  <moy@adacore.com>
+
+	* inline.adb (Can_Be_Inlined_In_GNATprove_Mode): Add handling
+	for dispatching operations.
+
+2019-09-17  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch13.adb (Check_Aspect_At_End_Of_Declarations): In a
+	generic context, for a Predicate aspect, use
+	Preanalyze_Spec_Expression to verify conformance.
+
+2019-09-17  Javier Miranda  <miranda@adacore.com>
+
+	* sem_ch3.adb (Constrain_Corresponding_Record): Propagate
+	attribute Is_Tagged_Type.
+
+2019-09-17  Javier Miranda  <miranda@adacore.com>
+
+	* exp_ch3.adb (Build_Record_Init_Proc): Do not generate code to
+	adjust the tag component when the record is initialized with a
+	raise expression.
+	* sem_aggr.adb (Valid_Limited_Ancestor): Return True for
+	N_Raise_Expression nodes.
+	(Valid_Ancestor_Type): Return True for raise expressions.
+	* sem_ch3.adb (Analyze_Component_Declaration): Do not report an
+	error when a component is initialized with a raise expression.
+	* sem_ch4.adb (Analyze_Qualified_Expression): Do not report an
+	error when the aggregate has a raise expression.
+
+2019-09-17  Piotr Trojanek  <trojanek@adacore.com>
+
+	* ali.ads: Fix casing in comment.
+	* ali-util.ads, ali-util.adb (Read_Withed_ALIs): Remove
+	Ignore_Errors parameter; it was only set to non-default value of
+	True when running in GNATprove_Mode and wrongly reset to False
+	when calling this routine recursively. Now in GNATprove mode we
+	want it to be always True, so in fact it is equivalent to
+	GNATProve_Mode flag itself (which was already used in this
+	routine).
+
+2019-09-17  Arnaud Charlet  <charlet@adacore.com>
+
+	* adaint.c (_REENTRANT, _THREAD_SAFE): Only define if needed.
+
+2019-09-17  Arnaud Charlet  <charlet@adacore.com>
+
+	* libgnat/s-bitfie.ads (Val_Bits, Val_Bytes): Define from
+	Long_Long_Integer'Size.
+
+2019-09-17  Javier Miranda  <miranda@adacore.com>
+
+	* exp_ch6.ads (Needs_BIP_Task_Actuals): New subprogram.
+	* exp_ch6.adb (Add_Task_Actuals_To_Build_In_Place_Call): Code
+	cleanup.
+	(Check_Number_Of_Actuals): New subprogram.
+	(Make_Build_In_Place_Call_In_Allocator): Adding assertion.
+	(Make_Build_In_Place_Call_In_Anonymous_Context): Adding
+	assertion.
+	(Make_Build_In_Place_Call_In_Assignment): Adding assertion.
+	(Make_Build_In_Place_Call_In_Object_Declaration): Code cleanup
+	plus assertion addition.
+	(Needs_BIP_Task_Actuals): New subprogram.
+	* sem_ch6.adb (Create_Extra_Formals): Rely on
+	Needs_BIP_Task_Actuals() to check if the master of the tasks to
+	be created, and the caller's activation chain formals are
+	needed.
+
+2019-09-17  Bob Duff  <duff@adacore.com>
+
+	* libgnat/s-bituti.adb (Get_Val_2, Set_Val_2): Use new routines
+	for getting and setting a Val_2, avoiding touching the second
+	half when that half might not exist.
+	* exp_ch5.adb (Expand_Assign_Array_Loop_Or_Bitfield): Correct
+	tests for potential volatile or independent components. In
+	particular, do not call Prefix unless we know it's a slice.
+
+2019-09-17  Dmitriy Anisimkov  <anisimko@adacore.com>
+
+	* gsocket.h: Include sys/un.h.
+	* s-oscons-tmplt.c (AF_UNIX): New constant generation.
+	(SIZEOF_sockaddr_un): Idem.
+	* libgnat/g-socket.ads (Family_Type): New value Family_Unix
+	added.
+	(Family_Inet_4_6): New subtype only for network families.
+	(Sock_Addr_Type): Add Unbounded_String field for Family_Unix
+	variant.
+	(Unix_Socket_Address): Create Sock_Addr_Type from socket
+	pathname.
+	(Network_Socket_Address): Create Sock_Addr_Type from
+	Inet_Addr_Type and Port_Type parameters.
+	* libgnat/g-socket.adb: Support local unix address in socket
+	routines.
+	(Get_Address_Info): Disable warning about Result may be
+	referenced before it has a value. Remove duplicated code to exit
+	from Look_For_Supported.
+	* libgnat/g-sothco.ads (Unix_Name_Length): New constant defining
+	maximum number of characters in local socket address path.
+	(Sockaddr): Add variant for Family_Unix address family. Move
+	Sin_Port and Sin_Family to Family_Inet section. Add Sin6_Port
+	and Sin6_Family to Family_Inet6 section.
+	(Set_Address): Add out parameter Length to return valuable
+	Sockaddr data length.
+	(Get_Address): Add input parameter Length to set valuable
+	Sockaddr data length.
+	* libgnat/g-sothco.adb: Support local unix address in socket
+	routines.
+
+2019-09-17  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* exp_attr.adb (Expand_Size_Attribute): Chain the special cases
+	on the back-end path and rewrite the attribute appled to slices
+	of bit-packed arrays into the product of the Length and the
+	Compoent_Size attributes of the slices.
+	* exp_ch5.adb (Expand_Assign_Array_Bitfield): Use Size attribute
+	directly to compute the bitfield's size.
+
+2019-09-17  Bob Duff  <duff@adacore.com>
+
+	* exp_ch5.adb (Expand_Assign_Array_Loop_Or_Bitfield): Add tests
+	for potential volatile or independent components.
+	* libgnat/s-bituti.adb (Copy_Small_Bitfield,
+	Copy_Large_Bitfield): Move declarations to more appropriate
+	place.
+
+2019-09-13  Maciej W. Rozycki  <macro@wdc.com>
+
+	* make.adb (Scan_Make_Arg): Also accept `--sysroot=' for the 
+	compiler and the linker.
+ 
+2019-08-30  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/decl.c (maybe_saturate_size): New function.
+	(gnat_to_gnu_entity): Invoke it on the Esize of types before sending
+	it for back-annotations.
+	* gcc-interface/trans.c: Fix typo.
+
+2019-08-30  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/ada-tree.h (DECL_FORCED_BY_REF_P): New macro.
+	* gcc-interface/decl.c (gnat_to_gnu_param): Set it on parameters
+	whose mechanism was forced to by-reference.
+	* gcc-interface/trans.c (Call_to_gnu): Do not issue a warning about a
+	misaligned actual parameter if it is based on a CONSTRUCTOR.  Remove
+ 	obsolete warning for users of Starlet.  Issue a warning if a temporary
+	is make around the call for a parameter with DECL_FORCED_BY_REF_P set.
+	(addressable_p): Return true for REAL_CST and ADDR_EXPR.
+
+2019-08-30  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/trans.c (gnat_to_gnu): Do not set the location on an
+	expression used for a tag.
+
+2019-08-30  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/gigi.h (aggregate_type_contains_array_p): Declare.
+	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Record_Type>: For an
+	extension, test Has_Record_Rep_Clause instead of Has_Specified_Layout.
+	(adjust_packed): Return 0 if the type of the field is an aggregate
+	type that contains (or is) a self-referential array.
+	(type_has_variable_size): Delete.
+	* gcc-interface/utils.c (inish_record_type): Constify a variable.
+	(aggregate_type_contains_array_p): Add parameter SELF_REFERENTIAL.
+	<RECORD_TYPE>: Pass it in the recursive call.
+	<ARRAY_TYPE>: If it is true, return true only if the array type is
+	self-referential.
+	(create_field_decl): Streamline the setting of the alignment on the
+	field.  Pass false to aggregate_type_contains_array_p.
+
+2019-08-30  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/trans.c (lvalue_required_p) <N_Slice>: Adjust GNU_TYPE
+	in the recursive call.
+	<N_Selected_Component>: Likewise.
+
+2019-08-30  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/utils.c (build_template): Deal with parameters
+	passed by pointer to component of multi-dimensional arrays.
+
+2019-08-30  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/decl.c (annotate_value) <CALL_EXPR>: Inline the call
+	also if List_Representation_Info is greater than 3.
+
+2019-08-30  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/trans.c (Attribute_to_gnu) <Attr_Size>: Add assertion.
+
+2019-08-30  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/gigi.h (gigi_checking_assert): New macro.
+	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Modular_Integer_Type>:
+	Remove redundant test and adjust comments.  Minor tweaks.
+	* gcc-interface/trans.c (Call_to_gnu): Do not generate range checks,
+	instead assert that the Do_Range_Check flag is not set.  Adjust call
+	to convert_with_check.
+	(gnat_to_gnu): Likewise.
+	(assoc_to_constructor): Likewise.
+	(pos_to_constructor): Likewise.  Remove GNAT_COMPONENT_TYPE parameter.
+	(emit_range_check): Delete.
+	(convert_with_check): Remove RANGE_P parameter and adjust.  Do a single
+	overflow check for modular types.
+
+2019-08-23  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/91283
+	* gcc-interface/misc.c (gnat_post_options): Set flag_excess_precision
+	instead of flag_excess_precision_cmdline.
+
+2019-08-21  Vadim Godunko  <godunko@adacore.com>
+
+	* libgnat/g-expect.adb (Expect_Internal): Attempt to read
+	several times when 'read' returns non-positive.
+
+2019-08-21  Piotr Trojanek  <trojanek@adacore.com>
+
+	* einfo.adb (Is_Discriminal): Remove extra parens.
+	(Is_Constant_Object): Simplify by reusing Ekind_In.
+	(Is_Prival): Remove extra parens.
+	* checks.adb, exp_ch4.adb, sem_ch3.adb, sem_spark.adb: Minor
+	reformattings.
+
+2019-08-21  Claire Dross  <dross@adacore.com>
+
+	* libgnat/a-cofove.ads (Vector): Add an Iterable aspect to allow
+	iteration.
+	(Iter_First, Iter_Next): Primitives used for iteration.
+
+2019-08-21  Yannick Moy  <moy@adacore.com>
+
+	* sem_ch3.adb (Analyze_Subtype_Declaration): Inherit RM_Size
+	field for formal type parameters in generic instantiations.
+
+2019-08-21  Yannick Moy  <moy@adacore.com>
+
+	* sem_spark.adb: Update references to the SPARK RM.
+
+2019-08-21  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* repinfo.adb (List_Array_Info): In -gnatR4 mode, set the
+	relevant flag on the component type here instead of...
+	(List_Object_Info): Likewise for the object type.
+	(List_Entities): ...here.  In -gnatR4 mode, recurse into
+	entities local to a record type.
+	(List_Component_Layout): In -gnatR4 mode, mark the type as
+	relevant.
+
+2019-08-21  Bob Duff  <duff@adacore.com>
+
+	* Makefile.rtl (GNATRTL_NONTASKING_OBJS): Add s-bitutil.o and
+	s-biutin.o.
+	* exp_ch5.adb (Expand_Assign_Array_Bitfield): New function to
+	generate a call to Copy_Bitfield. This is disabled for now.
+	(Expand_Assign_Array_Loop_Or_Bitfield): New function to decide
+	whether to call Expand_Assign_Array_Bitfield.
+	(Expand_Assign_Array): Call Expand_Assign_Array_Loop_Or_Bitfield
+	instead of Expand_Assign_Array_Loop.
+	* libgnat/s-bitfie.ads, libgnat/s-bituti.adb,
+	libgnat/s-bituti.ads: New units.
+	* rtsfind.ads: Add enum literals for accessing Copy_Bitfield.
+
+2019-08-21  Piotr Trojanek  <trojanek@adacore.com>
+
+	* bindo-graphs.ads (Iterate_Edges_To_Successors): Fix typo in
+	pragma Inline.
+	* bindo-graphs.adb (Delete_Edge): Fix layout in parameter list.
+
+2019-08-21  Gary Dismukes  <dismukes@adacore.com>
+
+	* exp_ch3.adb (Build_Master): Suppress call to
+	Build_Class_Wide_Master in the case where the
+	access-to-limited-class-wide type was created for a component in
+	an entry's formal parameter
+	block (Is_Parameter_Block_Component_Type), to prevent a master
+	from being created for such access types generated by the front
+	end in a task spec for entry formals in a parameter block.  Add
+	a ??? about whether this suppression should be done more
+	generally (such as by using Comes_From_Source).
+
+2019-08-21  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* exp_ch6.adb (Expand_N_Extended_Return_Statement): In the case
+	of a built-in-place function that doesn't need a BIP_Alloc_Form
+	parameter but returns unconstrained, build the return
+	consistently using the function's result subtype.  Remove bypass
+	added in previous change.
+
+2019-08-21  Piotr Trojanek  <trojanek@adacore.com>
+
+	* sem_prag.adb (Max_Entry_Queue_Length): Do not substitute
+	expression of the pragma argument with its value during
+	analysis.
+	* sem_util.adb (Get_Max_Queue_Length): Compute value of the
+	pragma argument when needed.
+
+2019-08-21  Yannick Moy  <moy@adacore.com>
+
+	* checks.adb (Install_Null_Excluding_Check): Do not install
+	check in GNATprove mode.
+
+2019-08-21  Yannick Moy  <moy@adacore.com>
+
+	* sem_spark.adb (Process_Path): Do nothing on address of
+	subprogram.
+
+2019-08-21  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* exp_util.adb (Finalize_Address): Deal consistently with
+	subtypes of private protected types.
+
+2019-08-21  Piotr Trojanek  <trojanek@adacore.com>
+
+	* exp_util.adb (Corresponding_Runtime_Package): Use high-level
+	Is_Protected_Type.
+	* sem_ch8.adb (Analyze_Renamed_Entry): Likewise.
+	* sem_ch9.adb (Analyze_Requeue): Likewise.
+
+2019-08-21  Javier Miranda  <miranda@adacore.com>
+
+	* sem_util.adb (Update_Named_Associations): Update
+	First_Named_Actual when the subprogram call has a single named
+	actual.
+
+2019-08-21  Joel Brobecker  <brobecker@adacore.com>
+
+	* doc/Makefile (mk_empty_dirs): New (PHONY) rule.
+	(%.html, %.pdf, %.txt, %.info, %.texinfo): Add dependencies on
+	mk_empty_dirs.
+
+2019-08-21  Justin Squirek  <squirek@adacore.com>
+
+	* doc/gnat_rm/implementation_defined_pragmas.rst: Modify
+	documentation to reflect expected behavior.
+	* gnat_rm.texi: Regenerate.
+	* sem_prag.adb (Analyze_Pragma): Modify handling of pragma
+	Max_Entry_Queue_Length to not reject integer values of negative
+	one.
+	* sem_util.adb (Get_Max_Queue_Length): Add processing for values
+	of negative one to fit within the current scheme.
+
+2019-08-20  Arnaud Charlet  <charlet@adacore.com>
+
+	* exp_unst.adb (Unnest_Subprograms, Unnest_Subprogram): Take
+	inlining (-gnatn) into account.
+
+2019-08-20  Ed Schonberg  <schonberg@adacore.com>
+
+	* exp_ch13.adb (Expand_N_Attribute_Definition_Clause, case
+	Storage_Size): If the expression for Storage_Size is not static
+	it may depend on characterstics of another type that may bot be
+	frozen yet, so the elaboration of the expression for the aspect
+	must be attached directly to the freeze actions of the type to
+	which it applies.
+
+2019-08-20  Piotr Trojanek  <trojanek@adacore.com>
+
+	* exp_util.adb (Build_DIC_Procedure_Declaration): Set the last
+	entity of the generated Default_Initial_Condition procedure in
+	order to construct a proper entity chain.
+
+2019-08-20  Yannick Moy  <moy@adacore.com>
+
+	* exp_spark.adb (Expand_SPARK_N_Slice_Or_Indexed_Component):
+	Renaming of function to apply to slices as well.
+	(Expand_SPARK): Expand prefix of slices of access type.
+
+2019-08-20  Bob Duff  <duff@adacore.com>
+
+	* exp_aggr.adb (Expand_Array_Aggregate): Use build-in-place in
+	the nonlimited case in STEP 4. This improves the efficiency of
+	things like (1 .. 1000 => <>).  We still generate some code for
+	that, unfortunately, but it is much improved.
+	(Aggr_Assignment_OK_For_Backend): Return false if <> components
+	are present.
+
+2019-08-20  Bob Duff  <duff@adacore.com>
+
+	* exp_ch6.adb (Needs_BIP_Alloc_Form): Call
+	Requires_Transient_Scope rather than checking constrainedness
+	and so forth.  We have previously improved
+	Requires_Transient_Scope to return False in various cases,
+	notably a limited record with an access discriminant. This
+	change takes advantage of that to avoid using the secondary
+	stack for functions returning such types.
+	(Make_Build_In_Place_Call_In_Allocator): Be consistent by
+	calling Needs_BIP_Alloc_Form rather than Is_Constrained and so
+	forth.
+	* sem_ch4.adb (Analyze_Allocator): The above change causes the
+	compiler to generate code that is not legal Ada, in particular
+	an uninitialized allocator for indefinite subtype.  This is
+	harmless, so we suppress the error message in this case.
+
+2019-08-20  Gary Dismukes  <dismukes@adacore.com>
+
+	* ali.adb, ali.ads, aspects.adb, checks.ads, checks.adb,
+	doc/gnat_rm/implementation_defined_pragmas.rst,
+	doc/gnat_ugn/building_executable_programs_with_gnat.rst,
+	einfo.ads, exp_aggr.adb, exp_ch11.adb, exp_ch3.ads, exp_ch4.adb,
+	exp_disp.adb, inline.adb, libgnat/a-locale.ads,
+	libgnat/s-soflin.ads, par_sco.adb, repinfo.adb, sem_ch5.adb,
+	sem_disp.adb, sem_elab.adb, sem_eval.adb, sem_spark.adb,
+	sem_spark.ads, sinfo.ads: Minor reformattings, typo fixes and
+	and rewordings.
+
+2019-08-20  Dmitriy Anisimkov  <anisimko@adacore.com>
+
+	* adaint.c (__gnat_to_gm_time): On _WIN32, don't round time up
+	to even second.
+
+2019-08-20  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch3.adb (Analyze_Object_Declaration): If actual type is
+	private and distinct from nominal type in declaration, propagate
+	flags Is_Constr_Subt_For_U_Nominal and _UN_Aliased to full view
+	of private type.
+
+2019-08-20  Ed Schonberg  <schonberg@adacore.com>
+
+	* exp_attr.adb (Expand_Loop_Entry_Attribute): When expanding a
+	loop entry attribute for a while_loop we construct a function
+	that incorporates the expanded condition of the loop. The itypes
+	that may be generated in that expansion must carry the scope of
+	the constructed function for proper handling in gigi.
+
+2019-08-20  Ed Schonberg  <schonberg@adacore.com>
+
+	* exp_disp.adb (Build_Class_Wide_Check, Replace_Formals): When a
+	dispatching call tp a subprogram with a class-wide precondition
+	occurrs in the same declarative part as the ancestor subprogram
+	being called, the`expression for the precondition has not been
+	analyzed yet. Such a call may appear, e.g. in an expression
+	function. In that case, the replacement of formals by actuals in
+	the call cannot use the formal entities of the subprogram being
+	called, and the occurrence of the formals in the expression must
+	be located by name (Chars fields) as would be done at a later
+	freeze point, when the expression is resolved in the context of
+	the subprogram itself.
+
+2019-08-20  Bob Duff  <duff@adacore.com>
+
+	* sem_prag.adb (Persistent_BSS): If an initialization is present
+	because of Initialize_Scalars or Normalize_Scalars, generate an
+	implicit pragma Suppress_Initialization to remove that, because
+	initialization is not allowed for these variables. Other
+	initializations remain illegal.
+
+2019-08-20  Gary Dismukes  <dismukes@adacore.com>
+
+	* sem_ch3.adb (OK_For_Limited_Init_In_05): In the case of type
+	conversions, apply the recursive call to the Original_Node of
+	the expression Exp rather than the Expression of the
+	Original_Node, in the case where Exp has been rewritten;
+	otherwise, when Original_Node is the same as Exp, apply the
+	recursive call to the Expression.
+	(Check_Initialization): Revise condition for special check on
+	type conversions of limited function calls to test Original_Node
+	(avoiding spurious errors on expanded unchecked conversions
+	applied to build-in-place dispatching calls).
+
+2019-08-20  Patrick Bernardi  <bernardi@adacore.com>
+
+	* exp_aggr.adb (Expand_Record_Aggregate): Always convert a
+	record Aggregate to assignment statements if the option
+	Aggregate_Individually_Assign is set.
+	* opt.ads (Aggregate_Individually_Assign): New option.
+	* par-prag.adb (Prag): Add Pragma_Aggregate_Individually_Assign.
+	* sem_prag.adb (Analyze_Pragma): Likewise.
+	* snames.ads-tmpl: Add Pragma_Aggregate_Individually_Assign and
+	Name_Aggregate_Individually_Assign.
+	* doc/gnat_rm/implementation_defined_pragmas.rst: Document
+	pragma Aggregate_Individually_Assign.
+	* gnat_rm.texi: Regenerate.
+
+2019-08-20  Bob Duff  <duff@adacore.com>
+
+	* par-ch4.adb: Minor wording change in error messages.
+	* sem_aggr.adb (Resolve_Delta_Aggregate): Emit an error for Ada
+	versions prior to Ada 2020.
+
+2019-08-20  Bob Duff  <duff@adacore.com>
+
+	* freeze.adb (Is_Atomic_VFA_Aggregate): Make the temp for
+	initialization of the atomic variable be constant. This is
+	cleaner, and might improve efficiency.
+
+2019-08-20  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* repinfo.adb (List_Record_Info): In -gnatR4 mode, set the
+	relevant flag on the implicit base type of a record subtype.
+
+2019-08-20  Bob Duff  <duff@adacore.com>
+
+	* sem_eval.adb (Expr_Value): Implement the case of an unchecked
+	conversion of a static expression.
+
+2019-08-20  Bob Duff  <duff@adacore.com>
+
+	* sem_ch13.adb (Is_Null_Array): New function, used to detect the
+	null array case; used to warn about uncheckedly converting to a
+	zero-sized array.  It is unfortunate that we can't just check
+	the size, and warn on all cases of converting from a
+	nonzero-sized type to a zero-sized one. That's because "0" means
+	two different things: "size is zero" and "size is unknown".
+	Until we fix that design flaw, we need this more targeted fix.
+
+2019-08-20  Bob Duff  <duff@adacore.com>
+
+	* libgnat/a-cborma.adb, libgnat/a-cborse.adb (Clear): Repeatedly
+	call Delete. This avoids clearing the free list, which
+	substantially speeds up future Delete operations.
+
+2019-08-20  Bob Duff  <duff@adacore.com>
+
+	* sem_ch13.adb (Component_Order_Check): New procedure to check
+	for out-of-order clauses.
+	* warnsw.ads, warnsw.adb: New -gnatw_r switch.
+	* doc/gnat_ugn/building_executable_programs_with_gnat.rst:
+	Document new switch.
+	* gnat_ugn.texi: Regenerate.
+
+2019-08-20  Bob Duff  <duff@adacore.com>
+
+	* sem_ch13.adb (Object_Size): Give an error for zero. It really
+	rubs me the wrong way that we don't honor "for T'Object_Size use
+	0;", but it's not important enough to fix. In any case, if we're
+	not going to obey the clause, we should give an error.
+
+2019-08-20  Bob Duff  <duff@adacore.com>
+
+	* errout.adb (Error_Msg_Internal): Set Warn_Err in case of
+	Is_Style_Msg.
+	* erroutc.adb (Output_Msg_Text): Do Warnings_Treated_As_Errors
+	processing and [warning-as-error] modification for style
+	messages.  Clean up code, simplify, remove unnecessary block
+	statement, add renaming of table entry.
+	* erroutc.ads (Warning_Treated_As_Error): Fix comment: no such
+	thing as Set_Warning_As_Error.
+	* opt.ads: Clean up comments and move related declarations near
+	each other.
+	* par-prag.adb: Process Warning_As_Error. This is necessary
+	because many style warning happen during parsing.
+	* sem_prag.adb: Use new Acquire_Warning_Match_String.
+	* sem_util.ads, sem_util.adb (Acquire_Warning_Match_String): New
+	function shared by par-prag.adb and sem_prag.adb. Replaces the
+	procedure in sem_prag.adb. Avoid use of global variables.
+	* stringt.ads, stringt.adb (To_String): New function to convert
+	String_Id to String.
+	* doc/gnat_rm/implementation_defined_pragmas.rst: Document the
+	new feature.
+	* gnat_rm.texi: Regenerate.
+
+2019-08-20  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* lib.ads: Add with clause for GNAT.HTable.
+	Add pragma Inline for Is_Loaded and alphabetize the list.
+	(Unit_Name_Table_Size): New constant.
+	(Unit_Name_Header_Num): New subtype.
+	(Unit_Name_Hash): New function declaration.
+	(Unit_Names): New simple hash table.
+	(Init_Unit_Name): New procedure declaration.
+	* lib.adb (Set_Unit_Name): Unregister the old name in the table,
+	if any, and then register the new name.
+	(Init_Unit_Name): New procedure.
+	(Is_Loaded): Reimplement using a lookup in the names table.
+	(Remove_Unit): Unregister the name.
+	(Unit_Name_Hash): New function.
+	* lib-load.adb (Create_Dummy_Package_Unit): Call Init_Unit_Name.
+	(Load_Unit): Use a lookup in the names table to find out whether
+	the unit has already been loaded.  Call Init_Unit_Name and then
+	Remove_Unit if the loading has failed.
+	(Make_Child_Decl_Unit): Call Init_Unit_Name.
+	(Make_Instance_Unit): Likewise.
+	* lib-writ.adb (Ensure_System_Dependency): Likewise.
+
+2019-08-20  Bob Duff  <duff@adacore.com>
+
+	* sem_ch13.adb (Record_Hole_Check): Initialize After_Last.
+
+2019-08-20  Piotr Trojanek  <trojanek@adacore.com>
+
+	* impunit.adb (Get_Kind_Of_Unit): Revert change for adapting
+	this routine for gnatprove.
+
+2019-08-20  Arnaud Charlet  <charlet@adacore.com>
+
+	* doc/gnat_rm/implementation_defined_pragmas.rst: Document
+	requirements for Pragma Lock_Free.
+	* gnat_rm.texi: Regenerate.
+
+2019-08-20  Philippe Gil  <gil@adacore.com>
+
+	* bindgen.adb (Gen_Main): Set gnat_argc/gnat_argv to argc/argv
+	only when still uninitialized.
+
+2019-08-20  Bob Duff  <duff@adacore.com>
+
+	* libgnat/g-comlin.ads (Exit_From_Command_Line): Fix
+	documentation for GNAT.Command_Line.
+
+2019-08-20  Pierre-Marie de Rodat  <derodat@adacore.com>
+
+	PR ada/91492
+	* gcc-interface/lang.opt (-fdump-scos): Add missing dot at the
+	end of the documentation.
+
+2019-08-20  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* gcc-interface/misc.c (default_pass_by_ref): Update call to
+	pass_by_reference.
+
+2019-08-19  Bob Duff  <duff@adacore.com>
+
+	* doc/gnat_rm/implementation_advice.rst: Fix documentation for
+	stream oriented attributes.
+	* gnat_rm.texi: Regenerate.
+
+2019-08-19  Gary Dismukes  <dismukes@adacore.com>
+
+	* einfo.ads (E_Function, E_Procedure): Update comments to
+	reflect that Renamed_Entity is also used for nongeneric
+	subprograms.
+
+2019-08-19  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_prag.adb (Is_Before_First_Decl): Deal with rewritten
+	pragmas.
+
+2019-08-19  Bob Duff  <duff@adacore.com>
+
+	* sem_warn.adb (Warn_On_Unreferenced_Entity): Suppress warning
+	on formal parameters of dispatching operations.
+
+2019-08-19  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_res.adb (Resolve_Call): A call to an expression function
+	freezes when expander is active, unless the call appears within
+	the body of another expression function,
+
+2019-08-19  Dmitriy Anisimkov  <anisimko@adacore.com>
+
+	* libgnat/s-os_lib.ads, libgnat/s-os_lib.adb (To_Ada, To_C): New
+	routines.
+
+2019-08-19  Bob Duff  <duff@adacore.com>
+
+	* exp_attr.adb (Attribute_Valid): Correct the handling of
+	private types where the full type is modular. System.Address is
+	an example. Otherwise, we convert uncheckedly to a signed type,
+	so we get an incorrect range 0 .. -1, for which all values will
+	fail.  The 'Valid attribute is illegal for such types, but we
+	generate such illegal attribute_references for 'Valid_Scalars,
+	and we generate 'Valid_Scalars when the -gnateV switch is used.
+	Rename Btyp --> PBtyp to avoid hiding the outer Btyp, which was
+	confusing.
+	* libgnat/a-except.adb: Set the Exception_Raised component.
+	Otherwise, we have incorrect reads of invalid data.
+
+2019-08-19  Pierre-Marie de Rodat  <derodat@adacore.com>
+
+	* libgnat/a-cgaaso.ads, libgnat/a-cgarso.ads,
+	libgnat/a-cogeso.ads, libgnat/a-contai.ads,
+	libgnat/a-locale.ads: Import documentation from the RM.
+
+2019-08-19  Jerome Guitton  <guitton@adacore.com>
+
+	* Makefile.rtl (system.o): New target to add generation of
+	target properties.
+	* gcc-interface/Makefile.in (install-gnatlib): Install
+	ada_target_properties.
+
+2019-08-19  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* inline.adb (Add_Inlined_Body): Do not special-case instances
+	that are compilation units.
+	(Add_Pending_Instantiation): Likewise.
+	(Instantiate_Body): Skip instantiations that are compilation
+	units and have already been performed.
+	* sem_ch12.adb (Needs_Body_Instantiated): Do not special-case
+	instances that are compilation units.
+	(Load_Parent_Of_Generic): Be prepared for parent that is a
+	compilation unit but whose instantiation node has not been
+	replaced.
+
+2019-08-19  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* inline.adb (Initialize, Lock): Deal with
+	Called_Pending_Instantiations.
+
+2019-08-19  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch6.adb (Check_Synchronized_Overriding): Complete
+	predicate that applies legality check in 9.4 (11.9/2): if an
+	inherited subprogram is implemented by a protected procedure or
+	entry, its first paarameter must be out, in_out or
+	access_to_varible.
+
+2019-08-19  Javier Miranda  <miranda@adacore.com>
+
+	PR ada/65696
+	* exp_atag.ads, exp_atag.adb (Build_Inherit_Predefined_Prims):
+	Adding formal to specify how many predefined primitives are
+	inherited from the parent type.
+	* exp_disp.adb (Number_Of_Predefined_Prims): New subprogram.
+	(Make_Secondary_DT): Compute the number of predefined primitives
+	of all tagged types (including tagged types not defined at
+	library level).  Previously we unconditionally relied on the
+	Max_Predef_Prims constant value when building the dispatch
+	tables of tagged types not defined at library level (thus
+	consuming more memory for their dispatch tables than required).
+	(Make_DT): Compute the number of predefined primitives that must
+	be inherited from their parent type when building the dispatch
+	tables of tagged types not defined at library level. Previously
+	we unconditionally relied on the Max_Predef_Prims constant value
+	when building the dispatch tables of tagged types not defined at
+	library level (thus copying more data than required from the
+	parent type).
+
+2019-08-19  Bob Duff  <duff@adacore.com>
+
+	* sem_ch13.adb (Record_Hole_Check): Procedure to check for holes
+	that incudes processing type extensions. A type extension is
+	processed by first calling Record_Hole_Check recursively on the
+	parent type to compute the bit number after the last component
+	of the parent.
+
+2019-08-19  Gary Dismukes  <dismukes@adacore.com>
+
+	* checks.adb (Length_Mismatch_Info_Message): New function in
+	Selected_Length_Checks to return a message indicating the
+	element counts for the mismatched lengths for a failed
+	compile-time length check.
+	(Plural_Or_Singular_Ending): Support function in
+	Length_Mismatch_Info_Message to return either "" or "s", for
+	concatenating to the end of words.
+	(Selected_Length_Checks): Pass the result of
+	Length_Mismatch_Info_Message as an extra warning message to
+	Compile_Time_Constraint_Error to indicate the mismatched lengths
+	for a failed compile-time length check.
+	* sem_util.ads (Compile_Time_Constraint_Error): Add an optional
+	message formal (Extra_Msg), defaulted to the empty string.
+	* sem_util.adb (Compile_Time_Constraint_Error): Output an extra
+	message following the main warning message (when Extra_Msg is
+	not the empty string).
+
+2019-08-19  Patrick Bernardi  <bernardi@adacore.com>
+
+	* socket.c: Removed the redefinition of getaddrinfo, getnameinfo
+	and freeaddrinfo to internal VxWorks kernel calls because they
+	are, well, internal kernel calls and cannot be called from RTPs.
+	VxWorks provides the necessary components to call these routines
+	directly.
+
+2019-08-19  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* exp_dist.adb (Is_Generic_Actual_Subtype): New predicate.
+	(Build_From_Any_Call, Build_To_Any_Call, Build_TypeCode_Call):
+	Use it instead of Is_Generic_Actual_Type flag to detect subtypes
+	representing generic actual types.
+
+2019-08-19  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_warn.adb (Check_References, Generic_Body_Formal): When a
+	formal parameter of a generic subprogram is not referenced in
+	the body, place the corresponding warning on the corresponding
+	entity in the specification of the generic body, as is done for
+	non-generic subprograms.
+
+2019-08-19  Bob Duff  <duff@adacore.com>
+
+	* errout.ads (Size_Too_Small_Message): New constant.
+	* errout.adb, freeze.adb, sem_ch13.adb: Use it.
+
+2019-08-19  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* exp_dist.adb (Build_Package_Stubs): Do not specifically visit
+	the declarations of an N_Subprogram_Instantiation node.
+
+2019-08-19  Bob Duff  <duff@adacore.com>
+
+	* doc/gnat_ugn/gnat_utility_programs.rst: Document missing
+	metrics switches.
+
+2019-08-19  Piotr Trojanek  <trojanek@adacore.com>
+
+	* sem_ch12.adb (Get_Unit_Instantiation_Node): Simplify Nkind_In
+	membership test.
+	* sem.adb (Depends_On_Main): Whitespace cleanup; only assign a
+	local variable if needed.
+
+2019-08-19  Claire Dross  <dross@adacore.com>
+
+	* sem_spark.ads, sem_spark.adb (Is_Pledge_Function): New
+	parameter of the generic. Function used to decide whether a
+	function is a pledge function.
+	(Check_Not_Borrowed): Disable check inside the second parameter
+	of a pledge function for the path borrowed by the first
+	parameter. Also disable checks for entities inside a Global
+	contract.
+
+2019-08-19  Joffrey Huguet  <huguet@adacore.com>
+
+	* libgnat/a-cfdlli.ads, libgnat/a-cfhama.ads,
+	libgnat/a-cfinve.ads, libgnat/a-cforma.ads,
+	libgnat/a-cofove.ads, libgnat/a-cofuma.ads,
+	libgnat/a-cofuve.ads: Add formal function parameter "=" (L, R :
+	Element_Type) to the generic packages.
+
+2019-08-19  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* opt.ads: Clean up left-overs of earlier implementation in
+	comment:
+
+2019-08-19  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch3.adb (Derived_Enumeration_Type): Do no freeze anonymous
+	base type if the bounds in the derived type declaration are
+	literals of the type.
+
+2019-08-19  Yannick Moy  <moy@adacore.com>
+
+	* sem_res.adb (Resolve_Call): Check non-aliasing rules before
+	GNATprove inlining.
+
+2019-08-19  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* inline.adb (Add_Inlined_Body): Do not add pending
+	instantiations.
+	* sem_ch12.adb (Needs_Body_Instantiated): New predicate.
+	(Analyze_Package_Instantiation): Use it to decide whether to add
+	a pending instantiation for the body of the package.
+
+2019-08-19  Olivier Hainque  <hainque@adacore.com>
+
+	* gcc-interface/trans.c (Acc_Loop_to_gnu): Return the openacc
+	BIND_EXPR node we have constructed on purpose.  Remove unused
+	variable.
+
+2019-08-19  Pierre-Marie de Rodat  <derodat@adacore.com>
+
+	* gcc-interface/lang.opt (fdump-scos): Define.
+	* gcc-interface/misc.c (gnat_handle_option): Handle
+	OPT_fdump_scos.
+
+2019-08-14  Joffrey Huguet  <huguet@adacore.com>
+
+	* libgnat/a-cofuba.ads: Add a Length attribute to type
+	Container. Add a type Array_Base which replaces the previous
+	Elements attribute of Container.
+	(Content_Init): New subprogram. It is used to initialize the
+	Base attribute of Container.
+	* libgnat/a-cofuba.adb (Resize): New subprogram. It is used to
+	resize the underlying array of a container if necessary.
+	(=, <=, Find, Get, Intersection, Length, Num_Overlaps, Set,
+	Union): Update to match changes in type declarations.
+	(Add): Modify body to damp the time and space cost in a specific
+	case.
+	(Content_Init): New subprogram. It is used to initialize the
+	Base attribute of Container.
+	(Remove): Modify body to damp the time and space cost in a
+	specific case.
+
+2019-08-14  Bob Duff  <duff@adacore.com>
+
+	* sem_ch13.adb (Get_Alignment_Value): Return 1 for Alignment 0,
+	and do not give an error.
+	* doc/gnat_rm/representation_clauses_and_pragmas.rst: Update the
+	corresponding documentation.
+	* gnat_rm.texi: Regenerate.
+
+2019-08-14  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* inline.adb (Add_Pending_Instantiation): Fix off-by-one error
+	in the comparison against the maximum number of instantiations.
+
+2019-08-14  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* inline.adb (Add_Pending_Instantiation): Use greater-or-equal
+	in the comparison against the maximum number of instantiations.
+
+2019-08-14  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_aux.adb (Next_Rep_Item): If a node in the rep chain
+	involves a Ghost aspect it may have been replaced by a null
+	statement; use the original node to find next Rep_Item.
+	* repinfo.adb (List_Entities): Do not list an Ignored
+	Ghost_Entity, for which information may have been deleted.
+
+2019-08-14  Bob Duff  <duff@adacore.com>
+
+	* sem_prag.ads, sem_prag.adb
+	(Process_Compile_Time_Warning_Or_Error): In parameterless
+	version, improve detection of whether we are in a generic unit
+	to cover the case of an instance within a generic unit.
+	(Process_Compile_Time_Warning_Or_Error): Rename the
+	two-parameter version to be
+	Validate_Compile_Time_Warning_Or_Error, and do not export it.
+	Issue a warning if the condition is not known at compile time.
+	The key point is that the warning must be given only for pragmas
+	deferred to the back end, because the back end discovers
+	additional values that are known at compile time.  Previous
+	changes in this ticket have enabled this by deferring to the
+	back end without checking for special cases such as 'Size.
+	(Validate_Compile_Time_Warning_Or_Error): Rename to be
+	Defer_Compile_Time_Warning_Error_To_BE.
+	* warnsw.ads, warnsw.adb (Warn_On_Unknown_Compile_Time_Warning):
+	Add new switches -gnatw_c and -gnatw_C to control the above
+	warning.
+	* doc/gnat_ugn/building_executable_programs_with_gnat.rst:
+	Document new switches.
+	* gnat_ugn.texi: Regenerate.
+
+2019-08-14  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_ch12.adb (Might_Inline_Subp): Rework comment and restrict
+	the shortcut based on Is_Inlined to the back-end inlining case.
+
+2019-08-14  Bob Duff  <duff@adacore.com>
+
+	* inline.adb (Check_And_Split_Unconstrained_Function): Ignore
+	protected functions to get rid of spurious error. The
+	transformation done by this procedure triggers legality errors
+	in the generated code in this case.
+
+2019-08-14  Bob Duff  <duff@adacore.com>
+
+	* sem_prag.adb (Process_Compile_Time_Warning_Or_Error): Defer
+	processing to the back end in all cases where the pragma's
+	condition is not known at compile time during the front end
+	(except in generics), as opposed to detecting 'Size attributes
+	and the like. This ensures that we take advantage of whatever
+	can be compile-time known after running the back end, as opposed
+	to having the front end guess what the back end can do.  Remove
+	a little duplicated code at the call site.
+	* gnat1drv.adb (Post_Compilation_Validation_Checks): Unlock the
+	Elists while in Validate_Compile_Time_Warning_Errors, because it
+	does analysis and name resolution, which sometimes involves
+	adding Elists.
+
+2019-08-14  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* einfo.ads (Is_Called): Document new usage on E_Package
+	entities.
+	* einfo.adb (Is_Called): Accept E_Package entities.
+	(Set_Is_Called): Likewise.
+	* exp_ch6.adb (Expand_Call_Helper): Move code dealing with
+	instances for back-end inlining to Add_Inlined_Body.
+	* inline.ads: Remove with clauses for Alloc and Table.
+	(Pending_Instantiations): Move to...
+	* inline.adb: Add with clauses for Alloc, Uintp, Table and
+	GNAT.HTable.
+	(Backend_Instances): New variable.
+	(Pending_Instantiations): ...here.
+	(Called_Pending_Instantiations): New table.
+	(Node_Table_Size): New constant.
+	(Node_Header_Num): New subtype.
+	(Node_Hash): New function.
+	(To_Pending_Instantiations): New hash table.
+	(Add_Inlined_Body): Bail out early for subprograms in the main
+	unit or subunit.  Likewise if the Is_Called flag is set.  If the
+	subprogram is an instance, invoke Add_Inlined_Instance.  Call
+	Set_Is_Called earlier.  If the subrogram is within an instance,
+	invoke Add_Inlined_Instance.  Also deal with the case where the
+	call itself is within an instance.
+	(Add_Inlined_Instance): New procedure.
+	(Add_Inlined_Subprogram): Remove conditions always fulfilled.
+	(Add_Pending_Instantiation): Move the defence against ludicruous
+	number of instantiations to here. When back-end inlining is
+	enabled, associate an instantiation with its index in table and
+	mark a few selected kinds of instantiations as always needed.
+	(Initialize): Set Backend_Instances to No_Elist.
+	(Instantiate_Body): New procedure doing the work extracted
+	from...
+	(Instantiate_Bodies): ...here.  When back-end inlining is
+	enabled, loop over Called_Pending_Instantiations instead of
+	Pending_Instantiations.
+	(Is_Nested): Minor tweak.
+	(List_Inlining_Info): Also list the contents of
+	Backend_Instances.
+	* sem_ch12.adb (Might_Inline_Subp): Return early if Is_Inlined
+	is set and otherwise set it before returning true.
+	(Analyze_Package_Instantiation): Remove the defence against
+	ludicruous number of instantiations.  Invoke
+	Remove_Dead_Instance instead of doing the removal manually if
+	there is a guaranteed ABE.
+
+2019-08-14  Gary Dismukes  <dismukes@adacore.com>
+
+	* exp_ch3.adb (Predef_Spec_Or_Body): For an equality operation
+	of an interface type, create an expression function (that
+	returns False) rather than declaring an abstract function.
+	* freeze.adb (Check_Inherited_Conditions): Set Needs_Wrapper to
+	False unconditionally at the start of the loop creating wrappers
+	for inherited operations.
+
+2019-08-14  Bob Duff  <duff@adacore.com>
+
+	* table.adb: Assert that the table is not locked when increasing
+	Last, even if it doesn't cause reallocation.  In other words,
+	assert that on operations that MIGHT cause reallocation.
+	* table.ads: Fix comment accordingly.
+
+2019-08-14  Arnaud Charlet  <charlet@adacore.com>
+
+	* doc/gnat_ugn/gnat_and_program_execution.rst: Remove
+	documentation of gnatelim.
+
+2019-08-14  Bob Duff  <duff@adacore.com>
+
+	* sem_prag.adb (Validate_Compile_Time_Warning_Error): Attach the
+	warning to the Sloc of the first pragma argument, rather than to
+	the pragma itself. This is to make pragmas processed after the
+	back end use the same Sloc as pragmas processed earlier, in the
+	front end. There's no reason for this discrepancy, and it
+	hinders further work on this ticket.
+
+2019-08-14  Bob Duff  <duff@adacore.com>
+
+	* sem.ads (Inside_A_Generic): Remove the ??? comment.
+
+2019-08-14  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* inline.ads (Pending_Descriptor): Delete.
+	* inline.adb (Initialize): Do not initialize it.
+	* sem_ch12.adb (Delay_Descriptors): Delete.
+	(Analyze_Package_Instantiation): Call
+	Set_Delay_Subprogram_Descriptors instead of Delay_Descriptors
+	throughout.
+
+2019-08-14  Bob Duff  <duff@adacore.com>
+
+	* exp_aggr.adb (Init_Hidden_Discriminants): Avoid processing the
+	wrong discriminant, which could be of the wrong type.
+
+2019-08-14  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_ch12.adb (Analyze_Instance_And_Renamings): Do not reset
+	the Is_Generic_Instance flag previously set on the package
+	generated for the instantiation of a generic subprogram.
+
+2019-08-14  Ed Schonberg  <schonberg@adacore.com>
+
+	* exp_ch4.adb (Expand_N_Quantified_Expression): Freeze
+	explicitly the type of the loop parameter.
+
+2019-08-14  Javier Miranda  <miranda@adacore.com>
+
+	* sem_util.adb (New_Copy_Tree.Copy_Node_With_Replacement):
+	Update the Chars attribute of identifiers.
+
+2019-08-14  Yannick Moy  <moy@adacore.com>
+
+	* sem_spark.adb, sem_spark.ads (Is_Legal): New function exposed
+	for use in GNATprove, to test legality rules not related to
+	permissions.
+	(Check_Declaration_Legality): Extract the part of
+	Check_Declaration that checks rules not related to permissions.
+	(Check_Declaration): Call the new Check_Declaration_Legality.
+	(Check_Type_Legality): Rename of Check_Type. Introduce
+	parameters to force or not checking, and update a flag detecting
+	illegalities.
+	(Check_Node): Ignore attribute references in statement position.
+
+2019-08-14  Yannick Moy  <moy@adacore.com>
+
+	* sem_spark.adb (Check_Old_Loop_Entry): New procedure to check
+	correct use of Old  and Loop_Entry.
+	(Check_Node): Check subprogram contracts.
+	(Check_Pragma): Check Loop_Variant.
+	(Check_Safe_Pointers): Apply checking to library-level
+	subprogram  declarations as well, in order to check their
+	contract.
+
+2019-08-14  Yannick Moy  <moy@adacore.com>
+
+	* sem_spark.adb (Is_Subpath_Expression): Take into account
+	conversion and qualification.
+
+2019-08-14  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_ch7.adb (Install_Private_Declarations)
+	<Swap_Private_Dependents>: Do not rely solely on the
+	Is_Child_Unit flag on the unit to recurse.
+	(Uninstall_Declarations) <Swap_Private_Dependents>: New
+	function.  Use it to recurse on the private dependent entities
+	for child units.
+
+2019-08-14  Javier Miranda  <miranda@adacore.com>
+
+	* exp_aggr.adb (Is_CCG_Supported_Aggregate): Return False for
+	arrays with bounds not known at compile time.
+
+2019-08-14  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_util.adb (New_Copy_Tree, Visit_Entity): A quantified
+	expression includes the implicit declaration of the loop
+	parameter. When a quantified expression is copied during
+	expansion, for example when building the precondition code from
+	the generated pragma, a new loop parameter must be created for
+	the new tree, to prevent duplicate declarations for the same
+	symbol.
+
+2019-08-14  Yannick Moy  <moy@adacore.com>
+
+	* sem_disp.adb (Check_Dispatching_Operation): Update assertion
+	for the separate declarations created in GNATprove mode.
+	* sem_disp.ads (Is_Overriding_Subprogram): Update comment.
+	* sem_elab.adb (SPARK_Processor): Fix test for checking of
+	overriding primitives.
+
+2019-08-14  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* inline.adb (Add_Inlined_Body): Tweak comments.
+	(List_Inlining_Info): Also list information about non-main
+	units.
+
+2019-08-14  Gary Dismukes  <dismukes@adacore.com>
+
+	* sem_ch4.adb (Analyze_Selected_Component): In the case where
+	the prefix is of a concurrent type, and the selected entity
+	matching the selector is the first private declaration of the
+	type (such as the first local variable in a task's body), set
+	Is_Private_Op.
+
+2019-08-14  Piotr Trojanek  <trojanek@adacore.com>
+
+	* einfo.adb (Is_Generic_Actual_Subprogram): Replace repeated
+	calls to Ekind with Ekind_In.
+
+2019-08-13  Richard Sandiford  <richard.sandiford@arm.com>
+
+	PR middle-end/91421
+	* gcc-interface/trans.c (gigi): Call set_decl_buillt_in_function.
+	(Call_to_gnu): Use DECL_FE_FUNCTION_CODE instead of DECL_FUNCTION_CODE.
+
+2019-08-13  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* ali.ads (Linker_Option_Record): Remove Original_Pos component.
+	* ali.adb (Scan_ALI): Do not set it.
+
+2019-08-13  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_ch3.adb (Build_Derived_Concurrent_Type): Add a couple of
+	local variables and use them.  When the derived type fully
+	constrains the parent type, rewrite it as a subtype of an
+	implicit (unconstrained) derived type instead of the other way
+	around.
+	(Copy_And_Build): Deal with concurrent types and use predicates.
+	(Build_Derived_Private_Type): Build the full derivation if
+	needed for concurrent types too.
+	(Build_Derived_Record_Type): Add marker comment.
+	(Complete_Private_Subtype): Use predicates.
+
+2019-08-13  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch3.adb (Check_Generic_Ancestor): New subprogram,
+	aubsidiary to Build_Derived_Record_Type. to enforce the rule
+	that a type extension declared in a generic body cznnot have an
+	ancestor that is a generic formal (RM 3.9.1 (4/2)). The rule
+	applies to all ancestors of the type, including interface
+	progenitors.
+
+2019-08-13  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_ch3.adb (Build_Underlying_Full_View): Delete.
+	(Complete_Private_Subtype): Do not set the full view on the
+	private subtype here.  If the full base is itself derived from
+	private, do not re-derive the parent type but instead constrain
+	an existing underlying full view.
+	(Prepare_Private_Subtype_Completion): Do not get to the
+	underlying full view, if any.  Set the full view on the private
+	subtype here.
+	(Process_Full_View): Likewise.
+	* sem_ch12.adb (Check_Generic_Actuals): Also set
+	Is_Generic_Actual_Type on the full view if the type of the
+	actual is private.
+	(Restore_Private_Views): Also reset Is_Generic_Actual_Type on
+	the full view if the type of the actual is private.
+	* sem_eval.adb (Subtypes_Statically_Match): Remove bypass for
+	generic actual types.
+
+2019-08-13  Javier Miranda  <miranda@adacore.com>
+
+	* sem_res.adb (Resolve_Selected_Component): When the type of the
+	component is an access to a class-wide type and the type of the
+	context is an access to a tagged type the relevant type is that
+	of the component (since in such case we may need to generate
+	implicit type conversions or dispatching calls).
+
+2019-08-13  Ed Schonberg  <schonberg@adacore.com>
+
+	* exp_aggr.adb (Aggr_Assignment_OK_For_Backend):  Preanalyze
+	expression, rather do a full analysis, to prevent unwanted
+	removal of side effects which mask the intent of the expression.
+
+2019-08-13  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* impunit.adb (Non_Imp_File_Names_95): Add
+	GNAT.Branch_Prediction.
+
+2019-08-13  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* exp_ch6.adb: Remove with and use clauses for Sem_Ch12.
+	(Expand_Call_Helper): Swap the back-end inlining case and the
+	special front-end expansion case.  In back-end inlining mode, do
+	not invoke Add_Inlined_Body unless the call may be inlined.
+	* inline.ads (Add_Pending_Instantiation): New function moved
+	from...
+	* inline.adb (Add_Inlined_Body): Simplify comment.  Turn test on
+	the enclosing unit into assertion.
+	(Add_Pending_Instantiation): New function moved from...
+	* sem_ch12.ads (Add_Pending_Instantiation): ...here.
+	* sem_ch12.adb (Add_Pending_Instantiation): ...here.
+
+2019-08-13  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem.adb (Do_Analyze): Recompute Style_Check_Max_Line_Length
+	after restoring Style_Max_Line_Length.
+
+2019-08-13  Arnaud Charlet  <charlet@adacore.com>
+
+	* sem_ch13.adb (Check_Iterator_Functions): Protect against
+	cascaded errors.
+
+2019-08-13  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch8.adb (Analyze_Subprogram_Renaming): Do no suppress mode
+	conformance checks on child unit instance that is a compilation
+	unit.
+
+2019-08-13  Gary Dismukes  <dismukes@adacore.com>
+
+	* exp_dbug.adb (Fully_Qualify_Name): Add full name qualification
+	for the E_Exception case.
+
+2019-08-13  Gary Dismukes  <dismukes@adacore.com>
+
+	* exp_aggr.adb (Aggr_Size_OK): Compute the aggregate size using
+	universal arithmetic, to avoid situations where the size
+	computation overflows.
+
+2019-08-13  Justin Squirek  <squirek@adacore.com>
+
+	* repinfo.adb (List_Scalar_Storage_Order): Modify conditionals
+	for displaying ordering to always be triggered when -gnatR4 is
+	in effect.
+
+2019-08-13  Justin Squirek  <squirek@adacore.com>
+
+	* aspects.adb, aspects.ads: Register new aspect.
+	* par-prag.adb (Prag): Register new pragma
+	* sem_ch13.adb (Analyze_Aspect_Specifications): Add processing
+	for new aspect similar to Aspect_Max_Entry_Queue_Length.
+	* sem_prag.adb, sem_prag.ads (Analyze_Pragma): Register new
+	pragma and set it to use the same processing as
+	Pragma_Max_Queue_Length.
+	* snames.ads-tmpl: Move definition of
+	Name_Max_Entry_Queue_Length so that it can be processed as a
+	pragma in addition to a restriction and add an entry for the
+	pragma itself.
+
+2019-08-13  Yannick Moy  <moy@adacore.com>
+
+	* sem_ch4.adb (Analyze_Allocator): Do not insert subtype
+	declaration for allocator inside a spec expression.
+
+2019-08-13  Yannick Moy  <moy@adacore.com>
+
+	* sem_res.adb (Resolve_Call): Do not inline calls inside record
+	types.
+
+2019-08-13  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_ch4.adb (Analyze_One_Call): Remove bypass for type
+	mismatch in nested instantiations.
+	* sem_ch8.adb (Find_Nearer_Entity): New function.
+	(Find_Renamed_Entity): Use it to disambiguate the candidates for
+	the renaming generated for an instantiation when it is
+	ambiguous.
+
+2019-08-13  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gnat1drv.adb (Adjust_Global_Switches): Do not set
+	Back_End_Inlining in ASIS mode either.
+
+2019-08-13  Olivier Hainque  <hainque@adacore.com>
+
+	* libgnat/s-win32.ads: Define size_t and fix the MapViewOfFile
+	binding to use it instead of DWORD for the dwNumberOfBytesToMap
+	argument.
+	* libgnat/g-sercom__mingw.adb (Read): State which definition of
+	size_t to fetch in call to Last_Index.
+
+2019-08-13  Arnaud Charlet  <charlet@adacore.com>
+
+	* gcc-interface/Make-lang.in: Remove unused TRACE variable. Pass
+	LN_S to relevant gnatlib targets.
+	* gcc-interface/Makefile.in: Systematically pass LN_S to
+	relevant gnatlib targets.
+
+2019-08-13  Yannick Moy  <moy@adacore.com>
+
+	* sem_dim.adb (Analyze_Dimension,
+	Analyze_Dimension_Array_Aggregate, Analyze_Dimension_Call,
+	Analyze_Dimension_Extension_Or_Record_Aggregate): Return
+	immediately when inside an inlined body.
+	* sem_res.adb (Resolve_Call): Remove special checking now done
+	inside Analyze_Dimension_Call.
+
+2019-08-13  Justin Squirek  <squirek@adacore.com>
+
+	* exp_ch4.adb (Expand_N_Allocator): Add condition to detect
+	library-level object declarations
+
+2019-08-13  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* doc/gnat_ugn/building_executable_programs_with_gnat.rst
+	(-gnateT): Document Double_Float_Alignment parameter and fix
+	description of Double_Scalar_Alignment parameter.
+	* gnat_ugn.texi: Regenerate.
+
+2019-08-13  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* exp_ch6.adb (Expand_Call_Helper): If back-end inlining is
+	enabled, also instantiate the body of a generic unit containing
+	a subprogram subject to aspect/pragma Inline_Always at
+	optimization level zero.
+	* sem_ch12.adb (Might_Inline_Subp): Minor tweak.
+	(Analyze_Package_Instantiation): Do not instantiate the package
+	body because of inlining considerations if the instantiation is
+	done in a generic unit.  Move around similar condition involving
+	the main unit.  Add test on Back_End_Inlining to processing for
+	front-end inlining.
+
+2019-08-13  Javier Miranda  <miranda@adacore.com>
+
+	* exp_disp.adb (Make_Secondary_DT): Handle record type
+	derivations that have interface components located at fixed
+	positions and interface components located at variable offset.
+	The offset of components located at fixed positions is computed
+	using the dummy object (similar to the case where all the
+	interface components are located at fixed positions).
+	(Make_DT): Build the dummy object for all tagged types that
+	implement interface types (that is, build it also for types with
+	variable size components), and use the dummy object to compute
+	the offset of all tag components located at fixed positions when
+	initializing the Interface_Table object.
+
+2019-08-13  Justin Squirek  <squirek@adacore.com>
+
+	* gnatcmd.adb (GNATCmd): Add constant for new compiler switch
+	--help-ada, and include usage subprogram. Add line to usage help
+	explaining the new flag.
+	(GNATCmd_Usage): Rename from locally declared Usage so as not to
+	confuse with the newly imported version. Add new argument case
+	for --help-ada and add bug report email to implicit display of
+	help without the --help flag so as to unify output between the
+	two cases.
+
+2019-08-13  Dmitriy Anisimkov  <anisimko@adacore.com>
+
+	* libgnat/g-comlin.adb (Getopt): Quote unrecognized switch in
+	Invalid_Switch exception message.
+
+2019-08-13  Yannick Moy  <moy@adacore.com>
+
+	* sem_util.adb (Traverse_More_Func): Take into account
+	Loop_Actions inside N_Iterated_Component_Association nodes.
+	* sinfo.ads: Document correctly Loop_Actions as a field of nodes
+	of kind N_Iterated_Component_Association.
+
+2019-08-13  Claire Dross  <dross@adacore.com>
+
+	* libgnat/a-cfinve.adb, libgnat/a-cofove.adb (Find_Index,
+	Reverse_Find_Index): Use bigger type to avoid range check
+	failure at the last loop iteration.
+
+2019-08-12  Dmitriy Anisimkov  <anisimko@adacore.com>
+
+	* libgnat/g-socket.adb (Is_IPv6_Address): Check that no less
+	then 2 colons in IPv6 numeric address.
+
+2019-08-12  Dmitriy Anisimkov  <anisimko@adacore.com>
+
+	* libgnat/g-comlin.ads, libgnat/g-comlin.adb (Getopt): Add
+	parameter Quiet. Need to do not output error messages to
+	console. Invalid_Switch exception generation surrounded by an
+	error message.
+
+2019-08-12  Ed Schonberg  <schonberg@adacore.com>
+
+	* exp_ch6.adb (Expand_Actuals. Add_Call_By_Copy_Code): Add code
+	to generate proper checks when an actual for an in-out or out
+	parameter has a non-null access type.  No constraints are
+	applied to an inbound access parameter, but on exit a not-null
+	check must be performed if the type of the actual requires it.
+
+2019-08-12  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_util.adb (Is_Expaned_Priority_Attribute): Check whether
+	call comes from a rewritten attribute before comparing name with
+	Get_Ceiling run-time subprogram.
+
+2019-08-12  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* exp_util.ads (Component_May_Be_Bit_Aligned): Small comment
+	tweaks.
+	(Possible_Bit_Aligned_Component): Likewise.
+	(Type_May_Have_Bit_Aligned_Components): Likewise.
+	* exp_util.adb (Component_May_Be_Bit_Aligned): Likewise.
+	(Possible_Bit_Aligned_Component): Likewise.
+	(Type_May_Have_Bit_Aligned_Components): Likewise.
+
+2019-08-12  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* exp_ch4.adb (Expand_N_Op_Eq): Expand the array equality if
+	either operand is a possibly unaligned slice.
+	* exp_ch6.adb (Expand_Simple_Function_Return): Do not generate a
+	copy for a possibly unaligned object if it is represented as a
+	scalar.
+	* exp_util.adb (Is_Possibly_Unaligned_Slice): Do not always
+	return false if the target doesn't have strict alignment.
+
+2019-08-12  Bob Duff  <duff@adacore.com>
+
+	* sem_ch12.adb (Instantiate_Package_Body): Remove suppression of
+	checks in instances of internal units.
+	* sem_ch6.adb (Analyze_Function_Return): Do not generate a
+	constraint check on an extended_return_statement if the subtype
+	of the return object in the statement is identical to the return
+	subtype of the function.
+
+2019-08-12  Bob Duff  <duff@adacore.com>
+
+	* libgnat/a-cbmutr.adb (Is_Reachable): Declare Idx to be of the
+	base subtype.  Clearly it makes no sense to loop "while Idx >=
+	0", if Idx is of a nonnegative subtype.
+
+2019-08-12  Bob Duff  <duff@adacore.com>
+
+	* libgnat/a-tifiio.adb (Put_Scaled): Prevent AA from being
+	negative, since Field is range 0 .. something.
+
+2019-08-12  Bob Duff  <duff@adacore.com>
+
+	* doc/gnat_ugn/gnat_utility_programs.rst (gnatmetric, gnatpp,
+	gnatstub): Remove documentation for Ada language version
+	switches, and note that they are no longer needed.
+
+2019-08-12  Gary Dismukes  <dismukes@adacore.com>
+
+	* sem_ch5.adb (Prepare_Param_Spec_Loop): Set the parents of the
+	copied low and high bounds in the case where the loop range is
+	given by a discrete_subtype_indication, to prevent hanging (or
+	Assert_Failure) in Insert_Actions.
+
+2019-08-12  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch6.adb (heck_Untagged_Equality): Verify that user-defined
+	equality has the same profile as the predefined equality before
+	applying legality rule in RM 4.5.2 (9.8).
+
+2019-08-12  Bob Duff  <duff@adacore.com>
+
+	* libgnat/a-except.ads: Update obsolete comment, still making
+	clear that this is a variant.  Add explicit default for Id
+	component of Exception_Occurrence, because that value is used.
+	Define Null_Occurrence less redundantly.
+	* libgnat/a-einuoc.adb: Minor simplification of code.
+
+2019-08-12  Justin Squirek  <squirek@adacore.com>
+
+	* libgnat/a-dhfina.adb, libgnat/a-dhfina.ads (Is_Simple_Name,
+	Is_Root_Directory, Is_Parent_Directory,
+	Is_Current_Directory_Name, Is_Relative_Name, Initial_Directory,
+	Relative_Name, Compose): Add implementation and documentation.
+	* libgnat/a-direct.adb (Containing_Directory): Modify routine to
+	use routines from Ada.Directories.Hierarchical_File_Names and
+	remove incorrect special case for parent directories.
+	(Fetch_Next_Entry): Add check for current directory and parent
+	directory and ignore them under certain circumstances.
+	(Simple_Nmae): Add check for null result from
+	Simple_Name_Internal and raise Name_Error.
+	(Simple_Name_Internal): Add explicit check for root directories,
+	sanitize trailing directory separators, and modify behavior so
+	that current and parent directories are considered valid
+	results.
+	* Makefile.rtl: Add entry to GNATRTL_NONTASKING_OBJS.
+
+2019-08-12  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* freeze.adb (Freeze_Entity): Give the same error for an
+	Object_Size clause on a variable-sized type as for a Size
+	clause.
+
+2019-08-12  Gary Dismukes  <dismukes@adacore.com>
+
+	* sem_prag.adb (Analyze_Pragma, Pragma_Suppress_Initialization):
+	For private types, set the Suppress_Initialization flag on the
+	Full_View of the entity rather than the entity's base type.
+
+2019-08-12  Yannick Moy  <moy@adacore.com>
+
+	* aspects.adb, aspects.ads (Aspect_No_Caching): New aspect.
+	* contracts.adb, contracts.ads (Add_Contract_Item): Add handling
+	of No_Caching.
+	(Analyze_Object_Contract): Add handling of No_Caching.
+	* einfo.adb, einfo.ads
+	(Get_Pragma): Add handling of No_Caching.
+	* doc/gnat_rm/implementation_defined_aspects.rst,
+	doc/gnat_rm/implementation_defined_pragmas.rst: Document new
+	aspect/pragma.
+	* gnat_rm.texi: Regenerate.
+	* par-prag.adb (Prag): New pragma Pragma_No_Caching.
+	* sem_ch13.adb (Analyze_Aspect_Specifications,
+	Check_Aspect_At_Freeze_Point): Add handling of No_Caching.
+	* sem_prag.adb (Analyze_Pragma): Deal with pragma No_Caching.
+	* sem_prag.ads (Analyze_External_Property_In_Decl_Part): Now
+	applies to No_Caching.
+	* sem_util.adb, sem_util.ads (Is_Effectively_Volatile): Add
+	handling of No_Caching.
+	(No_Caching_Enabled): New query function.
+	* snames.ads-tmpl: New names for pragma.
+
+2019-08-12  Yannick Moy  <moy@adacore.com>
+
+	* sem_util.adb, sem_util.ads (Traverse_More_Func,
+	Traverse_More_Proc): Add formal parameter for Itypes traversal.
+
+2019-08-12  Yannick Moy  <moy@adacore.com>
+
+	* exp_attr.adb, exp_attr.ads (Expand_Size_Attribute): New
+	procedure to share part of the attribute expansion with
+	GNATprove mode.
+	(Expand_N_Attribute_Reference): Extract part of the
+	Size/Object_Size expansion in the new procedure
+	Expand_Size_Attribute.
+	* exp_spark.adb (Expand_SPARK_N_Attribute_Reference): Expand
+	Size/Object_Size attributes using the new procedure
+	Expand_Size_Attribute.
+
+2019-08-12  Yannick Moy  <moy@adacore.com>
+
+	* exp_spark.adb (Expand_SPARK_N_Attribute_Reference): Only
+	expand Enum_Rep attribute when its parameter is a literal.
+
+2019-08-12  Justin Squirek  <squirek@adacore.com>
+
+	* sem_eval.adb (Check_Non_Static_Context): Add a condition to
+	determine if a range violation constitues a warning or an error.
+	(Out_Of_Range): Add a condition to determine if a range
+	violation constitues a warning or an error.
+
+2019-08-12  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* exp_ch4.adb (Real_Range_Check): Do not rewrite the conversion
+	node but its expression instead, after having fetched its
+	current value.  Clear the Do_Range_Check flag on entry.  Return
+	early for a rewritten float-to-float conversion.  Remove
+	redundant local variable.  Suppress all checks when inserting
+	the temporary and do not reanalyze the node.
+
+2019-08-12  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sprint.ads: Minor comment tweak.
+
+2019-08-12  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* checks.adb (Insert_Valid_Check): Do not retrieve the
+	Do_Range_Check flag from the Original_Node but from the
+	Validated_Object.  Remove useless bypass for floating-point
+	types.
+
+2019-08-12  Yannick Moy  <moy@adacore.com>
+
+	* sem_util.adb, sem_util.ads (Traverse_More_Func,
+	Traverse_More_Proc): New traversal subprograms.
+
+2019-08-12  Jerome Lambourg  <lambourg@adacore.com>
+
+	* libgnarl/s-taprop__vxworks.adb (Abort_Handler): Only call
+	s-tpopsp.Self when actually needed.
+
+2019-08-12  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* exp_ch4.adb (Discrete_Range_Check): Return if checks are
+	suppressed.
+
+2019-08-12  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_res.adb: Add with & use clause for Sem_Mech and
+	alphabetize.
+	(Resolve_Actuals): Do not apply a scalar range check for the
+	source of a conversion whose result is passed by reference to a
+	valued procedure.
+
+2019-08-12  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* checks.adb (Insert_Valid_Check): Reset the Do_Range_Check flag
+	on the validated object.
+	* exp_ch6.adb (Add_Call_By_Copy_Code): Reset the Do_Range_Check
+	flag on the actual here, as well as on the Expression if the
+	actual is a N_Type_Conversion node.
+	(Add_Validation_Call_By_Copy_Code): Generate the incoming range
+	check if needed and reset the Do_Range_Check flag on the
+	Expression if the actual is a N_Type_Conversion node.
+	(Expand_Actuals): Do not reset the Do_Range_Check flag here.
+	Generate the incoming range check for In parameters here instead
+	of...
+	(Expand_Call_Helper): ...here.  Remove redudant condition.
+	* sem_res.adb (Resolve_Actuals): Use local variable A_Typ and
+	remove obsolete comments.
+	(Resolve_Type_Conversion): Do not force the Do_Range_Check flag
+	on the operand if range checks are suppressed.
+
+2019-08-12  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* checks.adb (Activate_Range_Check): Remove redundant argument.
+	(Generate_Range_Check): Likewise.
+	(Apply_Float_Conversion_Check): Reset the Do_Range_Check flag on
+	entry and remove redundant condition.
+
+2019-08-02  Alexandre Oliva  <oliva@adacore.com>
+
+	* libgnat/a-exexpr.adb (Begin_Handler_v1, End_Handler_v1): New.
+	(Claimed_Cleanup): New.
+	(Begin_Handler, End_Handler): Document.
+	* gcc-interface/trans.c (gigi): Switch to exception handler
+	ABI #1.
+	(Exception_Handler_to_gnu_gcc): Save the original cleanup
+	returned by begin handler, pass it to end handler, and use
+	EH_ELSE_EXPR to pass a propagating exception to end handler.
+	(gnat_to_gnu): Leave the exception pointer alone for reraise.
+	(add_cleanup): Handle EH_ELSE_EXPR, require it by itself.
+
+2019-07-23  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch13.adb (Check_Aspect_At_End_Of_Declarations,
+	Freeze_Entity_Checks): Include Aspect_CPU with other aspects
+	whose expresssion may depend on a discriminant, and thus require
+	that components of the type be made visible.
+
+2019-07-23  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* checks.adb (Convert_And_Check_Range): Add Suppress parameter
+	and pass it in the call to Insert_Actions.  Rename local
+	variable.
+	(Generate_Range_Check): Minor comment fixes.  Pass Range_Check
+	in the first call to Convert_And_Check_Range and All_Checks in
+	the second call.
+	* exp_ch4.adb (Expand_N_Type_Conversion): Reset the
+	Do_Overflow_Check flag in the float-to-float case too if there
+	is also a range check.
+
+2019-07-23  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* checks.adb (Activate_Overflow_Check): Remove redundant
+	argument.
+	* exp_ch4.adb (Discrete_Range_Check): Reset the overflow flag.
+	(Expand_N_Type_Conversion): Do not reset it here.
+
+2019-07-23  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* repinfo.adb (List_Component_Layout): Pass Decimal to UI_Write.
+	(Write_Val): Likewise.
+
+2019-07-23  Ed Schonberg  <schonberg@adacore.com>
+
+	* aspects.ads: New table Operational_Aspect, used to distinguish
+	between aspects that are view-specific, such as those related to
+	iterators, and representation aspects that apply to all views of
+	a type.
+	* aspects.adb (Find_Aspect): If the aspect being sought is
+	operational, do not ecamine the full view of a private type to
+	retrieve it.
+	* sem_ch5.adb (Analyze_Iterator_Specification): Improve error
+	message when the intended domain of iteration does not implement
+	the required iterator aspects.
+
+2019-07-23  Yannick Moy  <moy@adacore.com>
+
+	* sem_spark.ads (Is_Local_Context): New function.
+	* sem_spark.adb (Check_Declaration): Issue errors on violations
+	of SPARK RM 3.10(4)
+	(Process_Path): Do not issue error on borrow/observe during
+	elaboration, as these are caught by the new rule.
+
+2019-07-23  Yannick Moy  <moy@adacore.com>
+
+	* exp_ch7.adb (Create_Finalizer): Force finalizer not to be
+	Ghost enabled.
+	* exp_dbug.adb (Get_External_Name): Explain special case of
+	Ghost finalizer.
+
+2019-07-22  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* repinfo.adb (List_Entities): Also list compiled-generated
+	types present as Etype of objects.
+
+2019-07-22  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sinfo.ads: Update the documentation about the
+	Do_Division_Check, Do_Overflow_Check and Do_Range_Check flags.
+
+2019-07-22  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* exp_ch4.adb (Expand_N_Type_Conversion): Beef up comment.
+	(Fixup_Universal_Fixed_Operation): Set the base type instead of
+	the type of the enclosing type conversion on the operation.
+
+2019-07-22  Ed Schonberg  <schonberg@adacore.com>
+
+	* exp_ch4.adb (Expand_N_In): Do not suggest the use of attribute
+	'Valid as a replacement for a range check on a discrete type
+	when the bounds of the range are given by type conversions,
+	because in such a case there are distinct types involved and the
+	subbested attribute replacement would be misplaced.
+
+2019-07-22  Yannick Moy  <moy@adacore.com>
+
+	* sem_spark.adb (Get_Root_Object, Is_Path_Expression,
+	Is_Subpath_Expression): Add parameter Is_Traversal to adapt
+	these functions to the case of paths returned from a traversal
+	function.
+	(Read_Indexes): Handle the case of an if-expression or
+	case-expression.
+	(Check_Statement): Check Emit_Messages only when issuing an
+	error message. This is important as Emit_Messages may store the
+	information that an error was detected.
+
+2019-07-22  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* checks.adb (Apply_Type_Conversion_Checks): Do not set
+	Do_Range_Check flag on conversions from fixed-point types
+	either.
+	* exp_attr.adb: Add use and with clause for Expander.
+	(Expand_N_Attribute_Reference) <Fixed_Value, Integer_Value>: Set
+	the Conversion_OK flag and do not generate overflow/range checks
+	manually.
+	* exp_ch4.adb (Expand_N_Qualified_Expression): Remove
+	superfluous clearing of Do_Range_Check flag.
+	(Discrete_Range_Check): New procedure to generate a range check
+	for discrete types.
+	(Real_Range_Check): Remove redundant local variable and adjust.
+	Remove useless shortcut.  Clear Do_Range_Check flag on all
+	paths.
+	(Expand_N_Type_Conversion): Remove redundant test on
+	Conversion_OK.  Call Discrete_Range_Check to generate range
+	checks on discrete types.  Remove obsolete code for
+	float-to-integer conversions.  Add code to generate range checks
+	for conversions involving fixed-point types.
+
+2019-07-22  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sprint.ads: Fix pasto in comment.
+
+2019-07-22  Javier Miranda  <miranda@adacore.com>
+
+	* sem_res.adb (Resolve_Actuals): Replace code that displaces the
+	pointer to an allocated object to reference its secondary
+	dispatch table by a type conversion (which takes care of
+	handling all cases).
+
+2019-07-22  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sprint.adb (Sprint_Node_Actual)
+	<N_Decimal_Fixed_Point_Definition>: Swap a couple of spaces.
+	(Write_Itype): Minor consistency fixes throughout.  Add support
+	for printing ordinary and decimal fixed-point types and
+	subtypes.
+
+2019-07-22  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* exp_attr.adb (Expand_Loop_Entry_Attribute): Beef up comment.
+
+2019-07-22  Ed Schonberg  <schonberg@adacore.com>
+
+	* libgnat/s-valboo.ads, libgnat/s-valcha.ads,
+	libgnat/s-valdec.ads, libgnat/s-valenu.ads,
+	libgnat/s-valint.ads, libgnat/s-vallld.ads,
+	libgnat/s-vallli.ads, libgnat/s-valllu.ads,
+	libgnat/s-valrea.ads, libgnat/s-valuns.ads,
+	libgnat/s-valwch.ads: Change categorization of packages that
+	implement attribute 'Value from Pure to Preelaborate, to prevent
+	undesirable optimizations when the evaluation of the attribute
+	raises Constraint_Error, but subsequent use of the result of
+	this evsaluation is removed by a subsequent optimization.
+
+2019-07-22  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_warn.adb (Check_References): Do not emit s warning on a
+	referenced entity with no explicit assignment if the type of the
+	entity has Preelaborable_Initialixation, such as
+	Exception_Occurrence.
+
+2019-07-22  Javier Miranda  <miranda@adacore.com>
+
+	* exp_ch4.adb (Size_In_Storage_Elements): Improve the expansion
+	to handle array indexes that are modular type.
+	(Expand_N_Allocator): For 32-bit targets improve the generation
+	of the runtime check associated with large arrays supporting
+	arrays initialized with a qualified expression.
+	* libgnat/s-imenne.adb (Image_Enumeration_8,
+	Image_Enumeration_16, Image_Enumeration_32): Define the index of
+	Index_Table with range Natural'First .. Names'Length since in
+	the worst case all the literals of the enumeration type would be
+	single letter literals and the Table built by the frontend would
+	have as many components as the length of the names string. As a
+	result of this enhancement, the internal tables declared using
+	Index_Table have a length closer to the real needs, thus
+	avoiding the declaration of large arrays on 32-bit CCG targets.
+
+2019-07-22  Yannick Moy  <moy@adacore.com>
+
+	* sem_ch3.adb (Constrain_Access): Issue a message about ignored
+	constraint.
+
+2019-07-22  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_ch8.adb (End_Use_Type): Reset the In_Use flag on the
+	class-wide type if the type is tagged.
+	(Use_One_Type): Add commentary on the handling of the class-wide
+	type.
+
+2019-07-22  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* einfo.ads (Is_For_Access_Subtype): Delete.
+	(Set_Is_For_Access_Subtype): Likewise.
+	* einfo.adb (Is_For_Access_Subtype): Likewise.
+	(Set_Is_For_Access_Subtype): Likewise.
+	(Write_Entity_Flags): Do not write Is_For_Access_Subtype.
+	* exp_ch4.adb (Expand_N_Selected_Component): Do not deal with
+	it.
+	* exp_spark.adb (Expand_SPARK_N_Selected_Component): Likewise.
+	* sem_ch4.adb (Analyze_Explicit_Dereference): Likewise.
+	* sem_ch3.adb (Build_Discriminated_Subtype): Do not build a
+	special private subtype for access-to-record subtypes.
+
+2019-07-22  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_ch3.adb (Complete_Private_Subtype): Rework the setting of
+	the Etype of the full view for full base types that cannot
+	contain any discriminant.  Remove code and comment about it in
+	the main path.
+
+2019-07-22  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch3.adb (Convert_Bound): Subsidiary of
+	Floating_Point_Type_Declaration, to handle properly range
+	specifications with bounds that may include static constants of
+	a given type rather than real literals.
+
+2019-07-22  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_aggr.adb (Rewrite_Bound): Be prepared for discriminals
+	too.
+	(Rewrite_Range;): Minor tweak.
+	(Resolve_Record_Aggregate): For a component with default
+	initialization whose expression is an array aggregate, also
+	rewrite the bounds of the component associations, if any.
+
+2019-07-22  Gary Dismukes  <dismukes@adacore.com>
+
+	* exp_ch5.adb (Expand_N_Case_Statement): In the case where a
+	case statement is rewritten as an equivalent if statement,
+	inherit the From_Condition_Expression flag from the case
+	statement.
+
+2019-07-22  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_ch8.adb (Check_Constrained_Object): Further extend the
+	special optimization to all limited types.
+
+2019-07-22  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* exp_attr.adb (Expand_N_Attribute_Reference)
+	<Attribute_Enum_Val>: Set No_Truncation on the
+	N_Unchecked_Type_Conversion built around the argument passed to
+	the attribute.
+
+2019-07-22  Nicolas Roche  <roche@adacore.com>
+
+	* libgnat/s-valrea.adb (Scan_Real): Ignore non significative
+	digits to avoid converging to infinity in some cases.
+
+2019-07-22  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* libgnat/g-encstr.adb (Encode_Wide_String): Fix oversight.
+	(Encode_Wide_Wide_String): Likewise.
+
+2019-07-22  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_warn.adb (Find_Var): Bail out for a function call with an
+	Out or In/Out parameter.
+
+2019-07-22  Nicolas Roche  <roche@adacore.com>
+
+	* terminals.c (__gnat_tty_waitpid): Support both blocking and
+	not blocking mode.
+	* libgnat/g-exptty.ads (Is_Process_Running): New function.
+	* libgnat/g-exptty.adb (Close): Don't try to interrupt/terminate
+	a process if it is already dead.
+
+2019-07-22  Ed Schonberg  <schonberg@adacore.com>
+
+	* freeze.adb (Freeze_Fixed_Point_Type): When freezing a
+	fixed-point subtype, check whether the parent type declarastion
+	includes an aspect specification for the 'Small type attribute,
+	and inherit the specified value.
+
+2019-07-22  Javier Miranda  <miranda@adacore.com>
+
+	* freeze.adb (Freeze_Subprogram): Check that C++ constructors
+	must have external or link name.
+
+2019-07-22  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_res.adb (Resolve_Selected_Component): If the prefix has a
+	deferred reference, generate the correct reference now, to
+	indicate that the previous assignment is used.  This prevents
+	spurious warnings on useless assignments when compiling with all
+	warnings enabled. when there is a subsequent call in the same
+	stqtement list, in which the prefix of the selected component is
+	the actual for an out parameter.
+
+2019-07-22  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* exp_attr.adb (Expand_Loop_Entry_Attribute): Copy the condition
+	of a while loop instead of simply relocating it.
+
+2019-07-18  Arnaud Charlet  <charlet@adacore.com>
+
+	* Makefile.rtl, expect.c, env.c, aux-io.c, mkdir.c, initialize.c,
+	cstreams.c, raise.c, tracebak.c, adadecode.c, init.c, raise-gcc.c,
+	argv.c, adaint.c, adaint.h, ctrl_c.c, sysdep.c, rtinit.c, cio.c,
+	seh_init.c, exit.c, targext.c: Introduce a "STANDALONE" mode where C
+	runtime files do not have any dependency on GCC include files.
+	Remove unnecessary includes.
+	Remove remaining references to VMS in runtime C file.
+	* runtime.h: new File.
+
+2019-07-13  Andreas Schwab  <schwab@linux-m68k.org>
+
+	* Makefile.rtl: Use g-sercom__linux.adb for all linuxes.
+
+2019-07-11  Piotr Trojanek  <trojanek@adacore.com>
+
+	* lib-writ.adb (Ensure_System_Dependency,
+	Up_To_Date_ALI_File_Exists, Write_ALI): Replace low-level access
+	to table with a high-level query.
+
+2019-07-11  Piotr Trojanek  <trojanek@adacore.com>
+
+	* checks.adb: Fix typo in comment.
+	* sem.adb (Semantics): Avoid repeated calls to
+	In_Extended_Main_Source_Unit by reusing an already-cached
+	result.
+	* sem_util.adb (First_Global): Fix style.
+
+2019-07-11  Yannick Moy  <moy@adacore.com>
+
+	* sem_res.adb (Resolve_Call): Do not perform dimensionality
+	checking on inlined bodies.
+
+2019-07-11  Yannick Moy  <moy@adacore.com>
+
+	* debug.adb: Flip meaning of debug switch -gnatdF.
+
+2019-07-11  Yannick Moy  <moy@adacore.com>
+
+	* sem_eval.adb (Is_Same_Value): Add special case for rewritten
+	Loop_Entry attribute.
+
+2019-07-11  Claire Dross  <dross@adacore.com>
+
+	* gnat1drv.adb: SPARK checking rules for pointer aliasing are
+	moved to GNATprove backend.
+	* sem_spark.ads, sem_spark.adb (Sem_SPARK): Is now a generic
+	unit. Takes as parameters:
+	 - Retysp which is used to query the most underlying type
+	   visible in SPARK. We do not introduce aliasing checks for
+	   types which are not visibly deep.
+	 - Component_Is_Visible_In_SPARK is used to avoid doing pointer
+	   aliasing checks on components which are not visible in SPARK.
+	 - Emit_Messages returns True in the second phase of SPARK
+	   analysis. Error messages for failed aliasing checks are only
+	   output in this case.
+	Additionally, errors on constructs not supported in SPARK are
+	removed as duplicates of marking errors. Components are stored
+	in the permission map using their original component to avoid
+	inconsistencies between components of different views of the
+	same type.
+	(Check_Expression): Handle delta constraints.
+	(Is_Deep): Exported so that we can check for SPARK restrictions
+	on deep types inside SPARK semantic checkings.
+	(Is_Traversal_Function): Exported so that we can check for SPARK
+	restrictions on traversal functions inside SPARK semantic
+	checkings.
+	(Check_Call_Statement, Read_Indexes): Check wether we are
+	dealing with a subprogram pointer type before querying called
+	entity.
+	(Is_Subpath_Expression): Image attribute can appear inside a
+	path.
+	(Check_Loop_Statement): Correct order of statements in the loop.
+	(Check_Node): Ignore raise nodes.
+	(Check_Statement): Use Last_Non_Pragma to get the object
+	declaration in an extended return statement.
+
+2019-07-11  Patrick Bernardi  <bernardi@adacore.com>
+
+	* bindgen.adb (Gen_Main): Do not generate a reference to
+	Ada_Main_Program_Name when the Minimal_Binder flag is set.
+	(Gen_Output_File_Ada): Do not output GNAT_Version and
+	Ada_Main_Program_Name info if Minimal_Binder flag is set.
+	* bindusg.adb: Add documentation for new -minimal switch.
+	* gnatbind.adb (Scan_Bind_Arg): Scan -minimal switch.
+	* opt.ads: Add new global flag Minimal_Binder to indicate if the
+	binder should not produce global variables.
+	* doc/gnat_ugn/building_executable_programs_with_gnat.rst:
+	Update documentation with new binder -minimal switch.
+	* gnat_ugn.texi: Regenerate.
+
+2019-07-11  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* Makefile.rtl: Add warning note about compilation flags and
+	capitalize.
+
+2019-07-11  Ed Schonberg  <schonberg@adacore.com>
+
+	* exp_ch9.adb (Expand_N_Protected_Type_Declaaration): New
+	subsidiary routine Replace_Access_Definition, to handle properly
+	a protected type PT one of whose private components is of type
+	access PT.
+
+2019-07-11  Dmitriy Anisimkov  <anisimko@adacore.com>
+
+	* libgnat/g-socket.ads (Level_Type): Add enumerators for
+	IP_Protocol_For_ICMP, IP_Protocol_For_IGMP,
+	IP_Protocol_For_RAW_Level.
+	* libgnat/g-socket.adb (Levels): Handle them.
+	* s-oscons-tmplt.c: Import socket protocols defined in
+	netinet/in.h.
+
+2019-07-11  Claire Dross  <dross@adacore.com>
+
+	* libgnat/a-cfhama.adb, libgnat/a-cfhase.adb (Free): Do not
+	reset the Has_Element flag if no element is freed.
+
+2019-07-11  Arnaud Charlet  <charlet@adacore.com>
+
+	* errno.c: Remove obsolete support for MaRTE OS.
+
+2019-07-11  Ed Schonberg  <schonberg@adacore.com>
+
+	* exp_ch4.adb (Expand_N_Type_Conversion): If a predicate check
+	is generated, analyze it with range check suppressed, because
+	that check has been previously applied.
+	* exp_ch5.adb (Expand_N_Assignment_Statement): If the RHS is a
+	type conversion to the type of the LHS, do not apply a predicate
+	check to the RHS because it will have been generated already
+	during its expansion.
+	* exp_ch6.adb (Can_Fold_Predicate_Call): Extend processing to
+	handle a predicate check on a constant entity whose value is
+	static.
+
+2019-07-11  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* bindo.adb: Remove the documentation of switch -d_N because it
+	is no longer in use.
+	* bindo-graphs.ads, bindo-graphs.adb (Is_Spec_Before_Body_Edge):
+	New routine.
+	* bindo-writers.adb (Write_Dependency_Edge): Add the missing
+	case of a spec-before-body edge.
+
+2019-07-11  Dmitriy Anisimkov  <anisimko@adacore.com>
+
+	* libgnat/g-socket.ads (Mode_Type): Add a Socket_Raw enumerator.
+	* libgnat/g-socket.adb (Modes): Handle Socket_Raw.
+
+2019-07-11  Justin Squirek  <squirek@adacore.com>
+
+	* exp_ch9.adb (Build_Private_Protected_Declaration): Add
+	exception for the moving of pragmas to internally generated
+	specs for pragma Unreferenced.
+
+2019-07-11  Bob Duff  <duff@adacore.com>
+
+	* doc/gnat_ugn/gnat_utility_programs.rst: Fix inconsistent
+	documentation for gnatmetric.
+	* gnat_ugn.texi: Regenerate.
+
+2019-07-11  Bob Duff  <duff@adacore.com>
+
+	* doc/gnat_ugn/gnat_utility_programs.rst: Document gnatpp's
+	--spaces-only switch.
+
+2019-07-11  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* sem_util.adb (Null_Status): Assume that an erroneous construct
+	has an undefined null status.
+
+2019-07-11  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* checks.adb, exp_ch6.adb, gnat1drv.adb, sem_aux.adb,
+	sem_ch2.adb, sem_ch8.adb, sem_res.adb: Minor reformatting.
+
+2019-07-11  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* sem_ch8.adb (Analyze_Object_Renaming): Obtain the object being
+	renamed using routine Get_Object_Name which takes care of
+	various name forms.
+	(Get_Object_Name): New routine.
+
+2019-07-11  Ed Schonberg  <schonberg@adacore.com>
+
+	* exp_ch6.adb (Can_Fold_Predicate_Call): New function,
+	subsidiary of Expand_Call_Helper, to compute statically a
+	predicate check when the argument is a static integer.
+
+2019-07-11  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* sem_res.adb (Resolve_Op_Not): Do not rewrite an equality
+	operator into a function call when the operator is intrinsic.
+
+2019-07-11  Thomas Quinot  <quinot@adacore.com>
+
+	* sem_prag.adb (Analyze_Pragma, case pragma Check): Do not call
+	Set_SCO_Pragma_Enabled for the dynamic predicate case.
+
+2019-07-11  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* exp_util.ads, exp_util.adb (Needs_Finalization): Move to
+	Sem_Util.
+	* sem_ch9.adb (Analyze_Protected_Definition): Code cleanup. Mark
+	the protected type as having controlled components when it
+	contains at least one such component.
+	* sem_util.ads, sem_util.adb (Needs_Finalization): New
+	function.
+
+2019-07-11  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* alloc.ads (Rep_JSON_Table_Initial): New constant.
+	(Rep_JSON_Table_Increment): Likewise.
+	* debug.adb: Document -gnatd_j switch.
+	* gcc-interface/Make-lang.in (GNAT_ADA_OBJS): Add
+	repinfo-input.o.
+	* gnat1drv.adb: Add with clause for Repinfo.Input.
+	Add with and use clauses for Sinput.
+	(Read_JSON_Files_For_Repinfo): New procedure.
+	(Gnat1drv1): Deal with -gnatd_j switch.
+	* repinfo-input.ad[sb]: New unit.
+	* snames.ads-tmpl (Name_Discriminant): New constant.
+	(Name_Operands): Likewise.
+
+2019-07-11  Justin Squirek  <squirek@adacore.com>
+
+	* checks.adb (Apply_Accessibility_Check): Add check for constant
+	folded conditions on accessibility checks.
+
+2019-07-11  Arnaud Charlet  <charlet@adacore.com>
+
+	* libgnarl/g-thread.ads, libgnarl/g-thread.adb (Get_Thread):
+	Update comments. Add new version taking a Task_Id.
+
+2019-07-11  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* bindo.adb: Update the section of switches and debugging
+	elaboration issues.
+	* bindo.ads: Add type Elaboration_Phase.
+	* bindo-augmentors.adb: Add use clause for
+	Bindo.Writers.Phase_Writers.
+	(Augment_Library_Graph): Signal the start and end of the
+	aubmentation phase.
+	* bindo-builders.adb: Add with and use clause for Bindo.Writers.
+	Add use clause for Bindo.Writers.Phase_Writers.
+	(Build_Invocation_Graph): Signal the start and end of the
+	invocation graph construction phase.
+	(Build_Library_Graph): Signal the start and end of the library
+	graph construction phase.
+	* bindo-diagnostics.adb: Add use clause for
+	Bindo.Writers.Phase_Writers.
+	(Diagnose_Cycle): Signal the start and end of the cycle
+	diagnostic phase.
+	* bindo-elaborators.adb: Add use clause for
+	Bindo.Writers.Phase_Writers.
+	(Elaborate_Units): Signal the start and end of the unit
+	elaboration phase.
+	* bindo-graphs.adb: Add use clause for
+	Bindo.Writers.Phase_Writers.
+	(Find_Components): Signal the start and end of the component
+	discovery phase.
+	(Find_Cycles): Signal the start and end of the cycle discovery
+	phase.
+	* bindo-units.adb: Add with and use clause for Bindo.Writers.
+	Add use clause for Bindo.Writers.Phase_Writers.
+	(Collect_Elaborable_Units): Signal the start and end of the unit
+	collection phase.
+	* bindo-validators.adb: Add with and use clause for
+	Bindo.Writers.  Add use clause for Bindo.Writers.Phase_Writers.
+	(Validate_Cycles, Validate_Elaboration_Order,
+	Validate_Invocation_Graph, Validate_Library_Graph): Signal the
+	start and end of the libray graph validation phase.
+	* bindo-writers.ads, bindo-writers.adb: Add new nested package
+	Phase_Writers.
+	* debug.adb: Update the documentation of switch d_S.
+
+2019-07-11  Yannick Moy  <moy@adacore.com>
+
+	* sem_res.adb (Check_Argument_Order): Special case calls to
+	operators.
+
+2019-07-10  Dmitriy Anisimkov  <anisimko@adacore.com>
+
+	* libgnat/s-ststop.adb: Remove System.Strings.Stream_Ops
+	dependence on System.Streams.Stream_IO.
+
+2019-07-10  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch2.adb (Analyze_Integer_Literal): Preserve the type of
+	the literal if prior analysis determined that its type is a
+	modular integer type.
+
+2019-07-10  Doug Rupp  <rupp@adacore.com>
+
+	* init.c: Do not attempt to re-arm guard page on x86_64-vx7(r2).
+
+2019-07-10  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch8.adb (Check_Constrained_Object): A record that is
+	limited because of the presence of a limited component is
+	constrained, and no subtype indiciation needs to be created for
+	it, just as is the case for declared limited records.
+
+2019-07-10  Yannick Moy  <moy@adacore.com>
+
+	* sem_aux.adb, sem_aux.ads (Is_Protected_Operation): New
+	function to determine if a subprogram is protected.
+	* sem_spark.adb (Setup_Protected_Components): New procedure to
+	add protected components to the environment.
+	(Check_Callable_Body): Call the new Setup_Protected_Components.
+	(Check_Package_Spec): Merge local environment with enclosing one
+	when done.
+
+2019-07-10  Claire Dross  <dross@adacore.com>
+
+	* sem_spark.adb (Check_Expression): Allow digits constraints as
+	input.
+	(Illegal_Global_Usage): Pass in the entity.
+	(Is_Subpath_Expression): New function to allow different nodes
+	as inner parts of a path expression.
+	(Read_Indexes): Allow concatenation and aggregates with box
+	expressions.  Allow attributes Update and Loop_Entry.
+	(Check_Expression): Allow richer membership test.
+	(Check_Node): Ignore bodies of generics.
+	(Get_Root_Object): Allow concatenation and attributes.
+
+2019-07-10  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* sem_ch6.adb (Check_Discriminant_Conformance): Use Find_Type to
+	discover the type of a full view discriminant.
+
+2019-07-10  Arnaud Charlet  <charlet@adacore.com>
+
+	* doc/gnat_ugn/gnat_and_program_execution.rst: Improve gnatmem's
+	doc for the depth switch.
+
+2019-07-10  Bob Duff  <duff@adacore.com>
+
+	* doc/gnat_ugn/gnat_utility_programs.rst: Document gnatpp's
+	--source-line-breaks switch.
+
+2019-07-10  Justin Squirek  <squirek@adacore.com>
+
+	* doc/gnat_rm/implementation_defined_attributes.rst: Add mention
+	of 'Image attribute with 'Img's entry to mention additional
+	added 2012 usage of Obj'Image.
+	* doc/gnat_rm/implementation_defined_pragmas.rst: Correct
+	mispelling of Async_Writers.
+	* gnat_rm.texi: Regenerate.
+	* sem_prag.adb (Analyze_Pragma): Correct mispelling of
+	Async_Writers.
+	* sem_util.adb (State_Has_Enabled_Property): Correct mispelling
+	of Async_Writers.
+
+2019-07-10  Simon Buist  <buist@adacore.com>
+
+	* sem_util.ads (Child_Prefix): New constant.
+	* sem_util.adb (Unique_Name): Add a special prefix to child
+	units that have a nested subprogram or package.
+
+2019-07-10  Arnaud Charlet  <charlet@adacore.com>
+
+	* sfn_scan.adb (Scan_SFN_Pragmas): Add pragma Assert.
+
+2019-07-10  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* sem_ch3.adb (Check_Nonoverridable_Aspects): Correct the
+	spelling in certain error messages.
+	(Check_Pragma_Implemented): Correct the spelling in certain
+	error messages.
+
+2019-07-10  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* Makefile.rtl (GNATRTL_NONTASKING_OBJS): Add g-brapre.
+	* libgnat/g-brapre.ads: New package specification.
+	* doc/gnat_rm/the_gnat_library.rst: Document it.
+	* gnat_rm.texi: Regenerate.
+
+2019-07-10  Yannick Moy  <moy@adacore.com>
+
+	* osint-c.adb (Set_File_Name): Always add extension for multiple
+	units per file mode.
+
+2019-07-10  Corentin Gay  <gay@adacore.com>
+
+	* sysdep.c: Put include directive for 'vxWorks.h' before any
+	other VxWorks headers.
+
+2019-07-10  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* doc/gnat_rm/implementation_defined_attributes.rst
+	(Scalar_Storage_Order): Minor tweaks.  Add note about debuggers.
+	* gnat_rm.texi: Regenerate.
+
+2019-07-10  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* exp_ch4.adb (Expand_N_Case_Expression): Mark the generated
+	assignments to the temporary result as being OK because the
+	expansion of case expressions is correct by construction.
+	(Is_Copy_Type): Update the predicate to match the comment
+	within.
+
+2019-07-10  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* bindo-graphs.adb, bindo.adb, debug.adb, exp_ch6.adb,
+	sem_ch10.adb, sem_ch13.adb, sem_ch3.adb, sem_ch4.adb,
+	sem_ch6.adb, sem_ch7.adb, sem_res.adb, sem_spark.adb,
+	sem_util.adb, warnsw.ads: Minor reformatting.
+
+2019-07-10  Joffrey Huguet  <huguet@adacore.com>
+
+	* libgnat/a-strbou.ads, libgnat/a-strfix.ads,
+	libgnat/a-strunb.ads, libgnat/a-strunb__shared.ads: Add global
+	contracts, contract cases, preconditions and postconditions to
+	procedures and functions.
+
+2019-07-10  Doug Rupp  <rupp@adacore.com>
+
+	* sysdep.c (__gnat_is_file_not_found_error): Reformulate to also
+	work for vxworks7r2 SR0610.
+
+2019-07-10  Doug Rupp  <rupp@adacore.com>
+
+	* env.c (__gnat_environ): Reformulate to also work for
+	vxworks7r2 SR0610.
+
+2019-07-10  Patrick Bernardi  <bernardi@adacore.com>
+
+	* Makefile.rtl: Handle vxworks7r2 ppc target
+
+2019-07-10  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* bindo.adb: Update the section on switches.
+	* bindo-graphs.adb
+	(Add_Cycle, Add_Vertex_And_Complement): Remove.
+	(Create): The graph no longer needs a set of recorded cycles
+	because the cycles are not rediscovered in permuted forms.
+	(Cycle_End_Vertices): New routine.
+	(Destroy): The graph no longer needs a set of recorded cycles
+	because the cycles are not rediscovered in permuted forms.
+	(Destroy_Library_Graph_Vertex): Move to the library level.
+	(Find_All_Cycles_Through_Vertex, Find_All_Cycles_With_Edge):
+	Remove.
+	(Find_Cycles_From_Successor, Find_Cycles_From_Vertex,
+	Find_Cycles_In_Component, Has_Elaborate_All_Edge): New routines.
+	(Insert_And_Sort): Remove.
+	(Is_Elaborate_Body_Edge): Use predicate
+	Is_Vertex_With_Elaborate_Body.
+	(Is_Recorded_Cycle): Remove.
+	(Is_Vertex_With_Elaborate_Body): New routine.
+	(Normalize_And_Add_Cycle): Remove.
+	(Precedence): Rename to xxx_Precedence, where xxx relates to the
+	input.  These versions better reflect the desired input
+	precedence.
+	(Record_Cycle): New routine.
+	(Remove_Vertex_And_Complement, Set_Is_Recorded_Cycle): Remove.
+	(Trace_xxx): Update all versions to use debug switch -d_t.
+	(Trace_Component): New routine.
+	(Trace_Eol): Removed.
+	(Trace_Vertex): Do not output the component as this information
+	is already available when the component is traced.
+	(Unvisit, Visit): New routine.
+	* bindo-graphs.ads: Add new instance LGV_Lists.  Remove instance
+	RC_Sets.  Update the structure of type Library_Graph_Attributes
+	to remove the set of recorded cycles.
+	(Destroy_Library_Graph_Vertex): Move to the library level.
+	* bindo-writers.adb (Write_Component_Vertices): Output
+	information about the number of vertices.
+	* debug.adb: Document the use of binder switch -d_t.  Update the
+	use of binder switch -d_T.
+
+2019-07-10  Yannick Moy  <moy@adacore.com>
+
+	* sem_spark.adb (Get_Root_Object): Replace precondition by error
+	message.
+	(Read_Indexes): Replace precondition by error message.
+	(Check_Callable_Body): Check only traversal function returns an
+	anonymous access type.
+	(Check_Expression): Issue error on unexpected expression as
+	path.
+	* sem_util.adb (First_Global): Fix access to global on
+	entry/task.
+
+2019-07-10  Javier Miranda  <miranda@adacore.com>
+
+	* exp_ch6.adb (Is_Class_Wide_Interface_Type): New subprogram.
+	(Expand_Call_Helper): Handle non-limited views when we check if
+	any formal is a class-wide interface type.
+	* exp_disp.adb (Expand_Interface_Actuals): Handle non-limited
+	views when we look for interface type formals to force "this"
+	displacement.
+
+2019-07-10  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_res.adb (Resolve_Equality_Op): Do not replace the resolved
+	operator by its alias if expander is not active, because the
+	operand type may not be frozen yet and its inherited operations
+	have not yet been created.
+
+2019-07-10  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* bindo-elaborators.adb (Elaborate_Units): Set attribute
+	Elab_Position of all elaborated units.
+	(Set_Unit_Elaboration_Positions): New routine.
+
+2019-07-10  Gary Dismukes  <dismukes@adacore.com>
+
+	* exp_util.adb: Reformatting and a typo fix.
+
+2019-07-10  Yannick Moy  <moy@adacore.com>
+
+	* exp_util.adb (Remove_Side_Effects): Prefer renamings for
+	objects of possible owning type in GNATprove mode.
+
+2019-07-09  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch3.adb (Analyze_Object_Declaration): If the object type
+	is a composite type that has a dynamic predicate and, the
+	expression in the declaration is an aggregate, the generated
+	predicate check must appear after the expanded code for the
+	aggregate, which will appear after the rewritten object
+	declarastion.
+
+2019-07-09  Justin Squirek  <squirek@adacore.com>
+
+	* sem_eval.adb (Expr_Value_E): Add conditional to correctly
+	handle constant enumerated character types.
+
+2019-07-09  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* libgnarl/s-osinte__mingw.ads (CRITICAL_SECTION): Use proper
+	type for SpinCount component.
+
+2019-07-09  Justin Squirek  <squirek@adacore.com>
+
+	* exp_ch4.adb (Expand_N_Allocator): Add conditional to detect
+	the presence of anoymous access type allocators and issue a
+	warning if the appropriate warning flag is enabled.
+	* warnsw.ads: Add new warning flag for anonymous allocators
+	* warnsw.adb (All_Warnings, Restore_Warnings, Save_Warnings,
+	Set_Underscore_Warning_Switch): Register new flags.
+	(WA_Warnings): Register new flag as an "all warnings" switch
+	* usage.adb,
+	doc/gnat_ugn/building_executable_programs_with_gnat.rst:
+	Document new warning switches -gnatw_a and -gnatw_A.
+	* gnat_ugn.texi: Regenerate.
+
+2019-07-09  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch4.adb (Diagnose_Call): Improve error recovery when a
+	local subprogram name hides a possible candidate name declared
+	in a child package in the context of the current unit.
+	* sem_ch6.adb (Process_Formals): Protect against malformed
+	formal types when the parameter type does not denote an entity.
+
+2019-07-09  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* bindo-augmentors.adb (Visit_Elaboration_Root): Do not start a
+	DFS from an elaboration root whose corresponding unit lacks
+	elaboration code. This behavior mimics that of the old
+	elaboration order mechanism.
+	* bindo-graphs.adb (Find_All_Cycles_Through_Vertex): Move the
+	vertex tracing within the functional branches of the routine.
+	This prevents spurious trace output.
+	(Has_No_Elaboration_Code): New routine.
+	(Trace_Cycle, Trace_Edge): Update the various Ids to use the
+	"standard" trace format.
+	* bindo-graphs.ads (Has_No_Elaboration_Code): New routine.
+	* bindo-units.ads, bindo-units.adb (Has_No_Elaboration_Code):
+	New routine.
+
+2019-07-09  Piotr Trojanek  <trojanek@adacore.com>
+
+	* ali.ads, bindo-graphs.adb, bindo-validators.adb, clean.adb,
+	doc/gnat_ugn/elaboration_order_handling_in_gnat.rst, einfo.ads,
+	exp_aggr.adb, exp_ch13.adb, exp_ch4.adb, exp_ch5.adb,
+	exp_ch6.adb, exp_ch7.adb, exp_ch9.adb, exp_pakd.adb,
+	fname-uf.ads, gnatlink.adb, inline.adb, lib.ads, make.adb,
+	namet.ads, opt.ads, par-ch4.adb, par-ch6.adb, par-labl.adb,
+	prep.adb, sem_aggr.adb, sem_ch13.adb, sem_ch4.adb, sem_ch5.adb,
+	sem_ch6.adb, sem_ch6.ads, sem_ch7.adb, sem_ch8.adb, sem_dim.adb,
+	sem_disp.adb, sem_prag.adb, sem_res.adb, sem_warn.adb,
+	sinfo.ads: Replace ".  " with ". ". Minor reformatting and typo
+	corrections.
+	* gnat_ugn.texi: Generate.
+
+2019-07-09  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* bindo.ads: Move type Precedence_Kind from the private to the
+	visible part of the unit.
+	* bindo-augmentors.adb: Remove the use of global data as it is
+	bad practice.
+	(Augment_Library_Graph): Update the parameter profile.
+	(Is_Visited, Set_Is_Visited): Remove.
+	(Visit_Elaboration_Root, Visit_Elaboration_Roots): Update the
+	parameter profile and comment on usage.
+	(Visit_Vertex): Likewise.  Also keep track of which invocation
+	edge activates a task.
+	* bindo-augmentors.ads (Augment_Library_Graph): Update the
+	parameter profile and comment on usage.
+	* bindo-builders.adb (Create_Forced_Edge,
+	Create_Spec_And_Body_Edge, Create_With_Edge): Update the call to
+	Add_Edge.
+	* bindo-diagnostics.adb: Add with end use clauses for Restrict
+	and Rident.
+	(Output_Dynamic_Model_Suggestions): Remove.
+	(Output_Invocation_Related_Suggestions): New routine.
+	(Output_Suggestions): Output all invocation-related suggestions
+	together.
+	* bindo-elaborators.adb: Remove types Comparator_Ptr and
+	Predicate_Ptr.
+	(Find_Best_Vertex): Update the parameter profile.
+	* bindo-graphs.adb (Activates_Task): New routine.
+	(Add_Body_Before_Spec_Edge): Update the call to
+	Add_Edge_With_Return.
+	(Add_Edge): Update the parameter profile and the call to
+	Add_Edge_With_Return.
+	(Add_Edge_With_Return): Update the parameter profile and comment
+	on usage.
+	(At_Least_One_Edge_Satisfies): New routine.
+	(Contains_Elaborate_All_Edge): Reimplement.
+	(Contains_Static_Successor_Edge, Contains_Task_Activation): New
+	routine.
+	(Contains_Weak_Static_Successor): Remove.
+	(Is_Static_Successor_Edge): New routine.
+	* bindo-graphs.ads: Add types LGE_Predicate_Ptr,
+	LGV_Comparator_Ptr, and LGV_Predicate_Ptr.  Update type
+	Library_Graph_Edge_Attributes to capture whether an invocation
+	edge activates a task.  Update the value of
+	No_Library_Graph_Edge_Attributes.
+	(Activates_Task): Update the parameter profile and comment on
+	usage.
+	(Contains_Static_Successor_Edge, Contains_Task_Activation): New
+	routines.
+	(Contains_Weak_Static_Successor): Remove.
+	* doc/gnat_ugn/elaboration_order_handling_in_gnat.rst:
+	Update the documentation to reflect the new task-related advice.
+	* gnat_ugn.texi: Regenerate.
+
+2019-07-09  Piotr Trojanek  <trojanek@adacore.com>
+
+	* exp_util.adb (Containing_Package_With_Ext_Axioms): Replace
+	low-level Ekind test with a high-level wrapper.
+
+2019-07-09  Arnaud Charlet  <charlet@adacore.com>
+
+	* libgnat/s-memory.adb: Disable calls to Abort defer/undefer
+	when ZCX_By_Default.
+
+2019-07-09  Javier Miranda  <miranda@adacore.com>
+
+	* sem_ch13.adb (Rep_Item_Too_Early): Representation clauses are
+	not allowed for a derivation of a generic type. Extend the
+	current test to check that none of the parents is a generic
+	type.
+
+2019-07-09  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* exp_ch9.adb, exp_util.adb, repinfo.adb, sem_ch12.adb,
+	sem_prag.adb, sem_res.adb, sem_spark.adb, sem_util.adb: Minor
+	reformatting.
+
+2019-07-09  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_res.adb (Resolve_Equality_Op): If the node was overloaded,
+	set properly the entity to which the node has been resolved. The
+	original entity is the first one found during analysis, and is
+	not necessarily the resolved one.
+	(Resolve_Op_Not): If the argument of negation is an overloaded
+	equality operation, call its resolution directly given that the
+	context type does not participate in overload resolution.
+
+2019-07-09  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* bindo.adb: Remove with and use clauses for Debug.  Add with
+	and use clauses for Opt.
+	(Find_Elaboration_Order): Enable the v4.0 elaboration order. The
+	v3.0 mechanism is now available under binder switch -H.
+	* bindusg.adb (Display): Enable switch -H.
+	* debug.adb: Free compiler switch -gnatd_G.  Free binder switch
+	-d_N.
+	* sem_elab.adb: Update the section on switches to remove
+	-gnatd_G.
+	(Invocation_Graph_Recording_OK): The invocation graph is now
+	unconditionally recorded in ALI files.
+	* switch-b.adb (Scan_Binder_Switches): Scan switch -H.
+	* doc/gnat_ugn/building_executable_programs_with_gnat.rst:
+	Update the documentation on compiler switches related to
+	elaboration.  Update the documentation on binder switches to
+	include switch -H.
+	* doc/gnat_ugn/elaboration_order_handling_in_gnat.rst: Update
+	the documentation on elaboration order handling in GNAT.
+	* gnat_ugn.texi: Regenerate.
+
+2019-07-09  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* repinfo.adb (List_Entities): Disregard formals altogether.
+	(List_Name): Properly escape the double quote in the JSON
+	output.
+
+2019-07-09  Javier Miranda  <miranda@adacore.com>
+
+	* exp_util.adb (Remove_Side_Effects): Preserve the
+	Do_Range_Check flag.
+
+2019-07-09  Yannick Moy  <moy@adacore.com>
+
+	* sinfo.ads: Refine comment for Do_Range_Check.
+
+2019-07-09  Yannick Moy  <moy@adacore.com>
+
+	* exp_spark.adb (Expand_SPARK_N_Attribute_Reference): Expand
+	attribute reference on Enum_Rep.
+
+2019-07-09  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch12.adb (Instantiate_Formal_Package): Handle properly the
+	case where the actual for a formal package in an instance is the
+	current instance of an enclosing generic package.
+	(Check_Formal_Packages): If the formal package declaration is
+	box-initialized or lacks associations altogether, no internal
+	instance was created to verify conformance, and there is no
+	validating package to remove from tree.
+
+2019-07-09  Yannick Moy  <moy@adacore.com>
+
+	* freeze.adb (Build_Renamed_Body): Do not set body to inline in
+	GNATprove mode.
+
+2019-07-09  Yannick Moy  <moy@adacore.com>
+
+	* exp_util.adb (Expand_Subtype_From_Expr): Still expand the type
+	of static expressions in GNATprove_Mode.
+	* sem_ch3.adb (Analyze_Object_Declaration): Remove obsolete
+	special case for GNATprove_Mode.
+
+2019-07-09  Piotr Trojanek  <trojanek@adacore.com>
+
+	* doc/gnat_rm/the_gnat_library.rst,
+	doc/gnat_ugn/building_executable_programs_with_gnat.rst,
+	erroutc.adb, libgnat/g-comlin.adb, libgnat/g-comlin.ads,
+	libgnat/g-regexp.ads, libgnat/g-regpat.ads,
+	libgnat/g-spipat.ads, libgnat/s-os_lib.ads,
+	libgnat/s-regexp.ads: Reword "wild card" to "wildcard".
+	* gnat_rm.texi, gnat_ugn.texi: Regenerate.
+
+2019-07-09  Yannick Moy  <moy@adacore.com>
+
+	* sem_spark.adb (Check_Expression): Handle correctly implicit
+	assignments as part of allocators and (extension) aggregates.
+	(Get_Root_Object): Adapt for new path expressions.
+	(Is_Path_Expression): Return True for (extension) aggregate.
+
+2019-07-09  Piotr Trojanek  <trojanek@adacore.com>
+
+	* einfo.ads: Fix a typo.
+
+2019-07-09  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_util.adb (Scope_Within_Or_Same): Handle properly task
+	bodies and protected bodies, so that local variables within have
+	their proper scopes after these constructs have been rewritten
+	during expansion. This patch resembles but is not identical to
+	the code in Scope_Within.
+
+2019-07-09  Arnaud Charlet  <charlet@adacore.com>
+
+	* gnat1drv.adb (Adjust_Global_Switches): Set
+	Dynamic_Elaboration_Checks to True in CodePeer mode.
+
+2019-07-09  Yannick Moy  <moy@adacore.com>
+
+	* sem_spark.adb (Get_Perm_Or_Tree): Issue an error when
+	encountering unknown global variable.
+
+2019-07-09  Yannick Moy  <moy@adacore.com>
+
+	* sem_spark.adb (Check_Expression): Change signature to take an
+	Extended_Checking_Mode, for handling read permission checking of
+	sub-expressions in an assignment.
+	(Check_Parameter_Or_Global): Adapt to new behavior of
+	Check_Expression for mode Assign.
+	(Check_Safe_Pointers): Do not analyze generic bodies.
+	(Check_Assignment): Separate checking of the target of an
+	assignment.
+
+2019-07-09  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* repinfo.ads (JSON format): Adjust.
+	* repinfo.adb (Need_Blank_Line): Rename to...
+	(Need_Separator): ...this.
+	(Blank_Line): Rename to...
+	(Write_Separator): ...this and add JSON specific handling.
+	(List_Array_Info): Adjust to above renaming.
+	(List_Object_Info): Likewise.
+	(List_Record_Info): Likewise.
+	(List_Subprogram_Info): Likewise.
+	(List_Type_Info): Likewise.
+	(List_Entities): Do not set Need_Blank_Line.
+	(List_Rep_Info): Set Need_Separator and add JSON specific
+	handling. Output a single JSON stream in the  normal case.
+
+2019-07-09  Arnaud Charlet  <charlet@adacore.com>
+
+	* doc/gnat_ugn/the_gnat_compilation_model.rst: Update doc on
+	-fdump-ada-spec now that we generate Ada 2012.
+	* gnat_ugn.texi: Regenerate.
+
+2019-07-08  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* repinfo.adb (List_Common_Type_Info): New procedure extracted
+	from...
+	(List_Type_Info): ...here.  Call it for the common information,
+	start with a blank line and output the linker section at the
+	end, if any.
+	(List_Mechanisms): Rename to...
+	(List_Subprogram_Info): ...this.
+	(List_Array_Info): Call List_Common_Type_Info.
+	(List_Entities): Adjust to above change and renaming.
+	(List_Record_Info): Call List_Common_Type_Info.
+
+2019-07-08  Dmitriy Anisimkov  <anisimko@adacore.com>
+
+	* libgnat/g-sercom.ads
+	(Serial_Port_Descriptor): New type.
+	(Serial_Port): Add a comment, make it hold a
+	Serial_Port_Descriptor.
+	(To_Ada, To_C): New procedures.
+	(Port_Data, Port_Data_Access): Remove types.
+	* libgnat/g-sercom.adb (To_Ada): New stub.
+	* libgnat/g-sercom__linux.adb, libgnat/g-sercom__mingw.adb:
+	Update implementations accordingly.
+	* s-oscons-tmplt.c: Bind Serial_Port_Descriptor to
+	System.Win32.HANDLE on Windows, and to Interfaces.C.int on
+	Linux. Add "Interfaces.C." prefix for other basic integer type
+	bindings.
+	* xoscons.adb (Output_Info): Remove the "Interfaces.C." prefix
+	for subtypes generation.
+
+2019-07-08  Arnaud Charlet  <charlet@adacore.com>
+
+	* doc/gnat_rm/standard_and_implementation_defined_restrictions.rst:
+	Update documentation on No_Exceptions restriction.
+	* gnat_rm.texi: Regenerate.
+
+2019-07-08  Dmitriy Anisimkov  <anisimko@adacore.com>
+
+	* libgnat/s-os_lib.adb: Do not call __gnat_kill for Invalid_Pid.
+
+2019-07-08  Piotr Trojanek  <trojanek@adacore.com>
+
+	* sem_util.adb (Enclosing_Package_Or_Subprogram): Do not expect
+	package and subprogram bodies.
+
+2019-07-08  Bob Duff  <duff@adacore.com>
+
+	* doc/gnat_ugn/gnat_utility_programs.rst: Remove documentation
+	of ignored GNATpp switch.
+
+2019-07-08  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* doc/gnat_rm/implementation_defined_pragmas.rst:
+	Update the documentation of pragma Initialize_Scalars.
+	* gnat_rm.texi: Regenerate.
+
+2019-07-08  Javier Miranda  <miranda@adacore.com>
+
+	* exp_ch4.adb (Tagged_Membership): Fix regression silently
+	introduced in r260738 that erroneouslusy causes the evaluation
+	to True of the membership test when the left operand of the
+	membership test is a class-wide interface object and the right
+	operand is a type that implements such interface type.
+
+2019-07-08  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* sem_ch13.adb (Analyze_Attribute_Definition_Clause): Do not
+	register an address clause when its prefix denotes a generic
+	formal object.
+
+2019-07-08  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* bindo-diagnostics.adb (Diagnose_Cycle): Capture the presence
+	of an Elaborate_All edge before iterating over the edges of the
+	cycle.
+	(Output_Elaborate_Body_Transition): Update the parameter profile
+	and the comment on usage. Add a missing case where the edge is
+	within the context of an Elaborate_All.
+	(Output_Transition): Update the call to
+	Output_Elaborate_Body_Transition.
+	* bindo-graphs.ads, bindo-graphs.adb
+	(Contains_Elaborate_All_Edge): New routine.
+
+2019-07-08  Piotr Trojanek  <trojanek@adacore.com>
+
+	* lib-xref-spark_specific.adb (Create_Heap): Set dummy Etype for
+	the fake __HEAP entity.
+
+2019-07-08  Daniel Mercier  <mercier@adacore.com>
+
+	* gnat1drv.adb: Suppress warnings on memory representation in
+	CodePeer compiler mode.
+
+2019-07-08  Nicolas Roche  <roche@adacore.com>
+
+	* rtinit.c (__gnat_runtime_initialize): Remove dependency on
+	CommandLineToArgvW.
+
+2019-07-08  Doug Rupp  <rupp@adacore.com>
+
+	* Makefile.rtl: Handle vxworks7r2 in x86_64 and x86 vxworks7.
+
+2019-07-08  Dmitriy Anisimkov  <anisimko@adacore.com>
+
+	* Makefile.rtl: Use g-sercom__linux.adb for all linuxes.
+
+2019-07-08  Yannick Moy  <moy@adacore.com>
+
+	* expander.adb (Expand): Do not reset Analyzed flag always.
+	* sem_eval.adb (Fold_Ureal): Mark node as analyzed.
+
+2019-07-08  Ed Schonberg  <schonberg@adacore.com>
+
+	* exp_ch9.adb (Expand_N_Timed_Entry_Call): Do not insert twice
+	the assignment statement that computes the delay value, to
+	prevent improper tree sharing when the value is a type
+	conversion and Float_Overflow checks are enabled.
+
+2019-07-08  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* bindo.adb: Update the section on terminology to include new
+	concepts.  Update the section on switches to include new
+	entries.
+	* bindo.ads: Add type Precedence_Kind.
+	* bindo-builders.adb: Add with and use clauses for Debug and
+	Bindo.Validators.  Add use clauses for
+	Bindo.Validators.Invocation_Graph_Validators and
+	Bindo.Validators.Library_Graph_Validators.
+	(Build_Invocation_Graph): Validate the graph immediately after
+	it was built.
+	(Build_Library_Graph): Update the parameter profile. The
+	creation of the graph is now elaboration model-agnostic.
+	Validate the graph immediately after it was built.
+	(Create_With_Edge): Create regular with edges for Elaborate and
+	Elaborate_All edges when the appropriate debug switches are in
+	effect.
+	* bindo-builders.ads (Build_Library_Graph): Update the parameter
+	profile.
+	* bindo-diagnostics.adb (Diagnose_Cycle): Track the presence of
+	an Elaborate_All edge throughout the inspection of the cycle's
+	edges.
+	(Output_Dynamic_Model_Suggestions): Output the suggestion only
+	when the cycle contains at least one weak edge where the
+	successor was statically elaborated.
+	(Output_Elaborate_Body_Transition, Output_Forced_Transition,
+	Output_With_Transition): Update the assertions.
+	* bindo-elaborators.adb: Remove use clauses for
+	Bindo.Validators.Invocation_Graph_Validators and
+	Bindo.Validators.Library_Graph_Validators.  Remove strings
+	Add_To_All_Candidates_Msg and Add_To_Comp_Candidates_Msg.
+	Remove type String_Ptr.
+	(Add_Vertex, Add_Vertex_If_Elaborable, Create_All_Candidates_Set
+	Create_Component_Candidates_Set): Remove.
+	(Create_Component_Vertex_Sets, Create_Vertex_Sets): New routine.
+	(Elaborate_Component): Update the parameter profile and the
+	comment on usage.  Reimplement the elaboration of a component.
+	The algorithm will now attempt to elaborate as many vertices
+	possible. If this is not possible, and a weakly elaborable
+	vertex is available use unit was compiled using the dynamic
+	model, the algorithm will elaborate it.
+	(Elaborate_Library_Graph): Reimplement the elaboration of the
+	graph. The algorithm will now attempt to elaborate as many
+	vertices along with their components as possible. If this is not
+	possible, and a weakly elaborable vertex is available use unit
+	was compiled using the dynamic model, the algorithm will
+	elaborate it along with its component.
+	(Elaborate_Units): Merge with the functionality of
+	Elaborate_Units_Common.
+	(Elaborate_Units_Common, Elaborate_Units_Dynamic,
+	Elaborate_Units_Static): Remove.
+	(Elaborate_Vertex): Update the parameter profile and the comment
+	on usage.  Reimplemented.
+	(Find_Best_Candidate): Remove.
+	(Find_Best_Elaborable_Vertex, Find_Best_Vertex,
+	Find_Best_Weakly_Elaborable_Vertex, Has_Elaborable_Body,
+	Insert_Elaborable_Successor, Insert_Vertex): New routines.
+	(Is_Better_Candidate): Remove.
+	(Is_Better_Elaborable_Vertex,
+	Is_Better_Weakly_Elaborable_Vertex,
+	Is_Suitable_Elaborable_Vertex,
+	Is_Suitable_Weakly_Elaborable_Vertex): New routines.
+	(Trace_Candidate_Vertices): Remove.
+	(Trace_Component): Output the number of strong and weak
+	predecessors.
+	(Trace_Unelaborated_Vertices): Remove.
+	(Trace_Vertex): Output the number of strong and weak
+	predecessors.
+	(Trace_Vertices): New routine.
+	(Update_Successor, Update_Successors): Update the parameter
+	profile and the comment on usage.
+	* bindo-graphs.adb: Remove type Precedence_Kind.
+	(Add_Edge_With_Return): Update the increment of pending
+	predecessors.
+	(Add_Vertex): Provide default values for strong and weak
+	predecessors.
+	(Complementary_Vertex): Move the initial declaration to the
+	spec. Update the parameter profile and the comment on usage.
+	(Contains_Weak_Static_Successor): New routine.
+	(Create): Update the parameter profile. The creation of the
+	graph is now elaboration model-agnostic.
+	(Decrement_Pending_Predecessors): Update the parameter profile
+	and the comment on usage. Reimplemented.
+	(Delete_Edge): Update the decrement of pending predecesors.
+	(Has_Elaborate_Body): Do not treat a vertex as being subject to
+	Elaborate_Body when a debug switch is in effect.
+	(Increment_Pending_Predecessors): Update the parameter profile
+	and the comment on usage. Reimplemented.
+	(Is_Elaborable_Component): Reimplemented.
+	(Is_Elaborable_Vertex): Move the initial declaration to the
+	spec.  Reimplemented.
+	(Is_Elaborate_Body_Pair): New routine.
+	(Is_Dynamically_Elaborated): Update the parameter profile.
+	Reimplemented.
+	(Is_Weakly_Elaborable_Vertex): New routine.
+	(Pending_Predecessors): Removed.
+	(Pending_Predecessors_For_Elaboration,
+	Pending_Strong_Predecessors, Pending_Weak_Predecessors,
+	Update_Pending_Predecessors): New routines.
+	(Update_Pending_Predecessors_Of_Components): Update the
+	increment of pending predecessors.
+	* bindo-graphs.ads: Update the components of type
+	Component_Attributes.  Update the components of type
+	Library_Graph_Attributes.  Update the components of type
+	Library_Graph_Vertex_Attributes.  Update the initialization of
+	No_Component_Attributes.  Update the initialization of
+	No_Library_Graph_Vertex_Attributes.
+	(Complementary_Vertex, Contains_Weak_Static_Successor): New
+	routines.
+	(Create): Update the parameter profile and the comment on usage.
+	(Decrement_Pending_Predecessors, Is_Dynamically_Elaborated):
+	Update the parameter profile and the comment on usage.
+	(Is_Elaborate_Body_Pair, Is_Weakly_Elaborable_Vertex): New
+	routines.
+	(Pending_Predecessors): Removed.
+	(Pending_Predecessors_For_Elaboration,
+	Pending_Strong_Predecessors, Pending_Weak_Predecessors): New
+	routines.
+	* bindo-writers.adb (Write_Components): Moved from the spec.
+	(Write_Component): Output the strong and weak predecessors.
+	(Write_Library_Graph): Output the components as part of the
+	graph.
+	(Write_Library_Graph_Vertex): Output the strong and weak
+	predecessors.
+	* bindo-writers.ads (Write_Components): Moved to the body.
+	* debug.adb: Add and document new GNATbind switches -d_a, -d_b,
+	-d_e.
+	* bindo-validators.adb: Minor reformattings.
+
+2019-07-08  Bob Duff  <duff@adacore.com>
+
+	* libgnat/g-sercom.ads, libgnat/g-sercom__linux.adb (Data_Rate):
+	Support additional data rates.
+
+2019-07-08  Olivier Hainque  <hainque@adacore.com>
+
+	* gcc-interface/trans.c (Compilation_Unit_to_gnu): Don't request
+	DECL_ARTIFICIAL_P on elab proc declarations.
+
+2019-07-08  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* repinfo.adb (List_Record_Info): Declare Incomplete_Layout and
+	Not_In_Extended_Main local exceptions.
+	(List_Structural_Record_Layout): For an extension, raise the
+	former if the parent subtype has not been built and the latter
+	if it is not declared in the main source unit.  Fall back to the
+	flat layout if either exception has been raised.
+
+2019-07-08  Ed Schonberg  <schonberg@adacore.com>
+
+	* libgnat/a-strfix.adb (Delete): The RM describes the semantics
+	of Delete as equivalent to that of Replace_String with a null
+	argument. As a result, deleting a null string that starts past
+	the end of its argument is a noop and must not raise
+	Index_Error.
+
+2019-07-08  Javier Miranda  <miranda@adacore.com>
+
+	* exp_disp.adb (Register_Primitive): When registering a
+	primitive in the secondary dispatch table, handle primitive
+	inherited through several levels of type derivation (required to
+	properly handle inherited 'null' primitive).
+
+2019-07-08  Bob Duff  <duff@adacore.com>
+
+	* doc/gnat_ugn/gnat_utility_programs.rst: Document handling of
+	preprocessor directives in GNATpp.
+
+2019-07-08  Javier Miranda  <miranda@adacore.com>
+
+	* gnat1drv.adb (Post_Compilation_Validation_Checks:
+	Validate_Compile_Time_Warning_Errors is now located in sem_prag
+	(instead of sem_ch13).
+	* sem_ch13.ads (Validate_Compile_Time_Warning_Error,
+	Validate_Compile_Time_Warning_Errors): Move to sem_prag.
+	* sem_ch13.adb
+	(Compile_Time_Warnings_Errors): Move to sem_prag.
+	(Initialize): Remove initialization of table
+	Compile_Time_Warning_Errors.
+	(Validate_Compile_Time_Warning_Error,
+	Validate_Compile_Time_Warning_Errors): Move to sem_prag.
+	* sem_prag.ads (Validate_Compile_Time_Warning_Errors): New
+	procedure.
+	* sem_prag.adb (Initialize): Initialize table
+	Compile_Time_Warning_Errors.
+
+2019-07-08  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch13.adb (Analyze_Aspect_Specifications): For a
+	pre/postcondition of a generic subprogram declaration, do not
+	use Relocate_Node on the aspect expression to construct the
+	corresponding attribute specification, to prevent tree anomalies
+	when the expression is a call with named actual parameters.
+
+2019-07-08  Javier Miranda  <miranda@adacore.com>
+
+	* sem_attr.adb (Analyze_Attribute [Attribute_Size]): For pragmas
+	used to report user defined compile time warning or errors
+	handle 'Size for types with known static RM size.
+
+2019-07-08  Justin Squirek  <squirek@adacore.com>
+
+	* exp_imgv.adb (Build_Enumeration_Image_Tables): Default SSO for
+	the building of image tables.
+	(Expand_Image_Attribute): Minor cleanup.
+
+2019-07-08  Dmitriy Anisimkov  <anisimko@adacore.com>
+
+	* libgnat/g-socket.ads, libgnat/g-socket.adb: Improve
+	documentation.
+	(Get_Socket_Option, Set_Socket_Option): Remove default value for
+	the Level formal.
+
+2019-07-08  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch13.adb (Check_Aspect_At_End_Of_Declarations): For an
+	unanalized aspect in a generic context that has not been
+	analyzed yet, if the aspect applies to a type, place the type on
+	the scope stack to make its components visible, before checking
+	conformance with the version of the expression analyzed at the
+	freeze point.
+
+2019-07-05  Justin Squirek  <squirek@adacore.com>
+
+	* checks.adb (Apply_Accessibility_Check): Add logic to fetch the
+	function result accessibility level if one is required within
+	the generated check.
+	* exp_ch6.adb (Needs_Result_Accessibility_Level): Modify
+	controlling elsif block to handle more cases such as anonymous
+	access results and disable checking for coextensions.
+
+2019-07-05  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch9.adb (Analyze_Accept_Statement): If this is an illegal
+	accept statement for an enclosing entry abandon analysis to
+	prevent scope mismatches and potential infinite loops in
+	compiler.
+
+2019-07-05  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* ali.adb (For_Each_Invocation_Construct,
+	For_Each_Invocation_Relation): New version.
+	(Scan_ALI): Initialize field Invocation_Graph_Encoding.
+	(Set_Invocation_Graph_Encoding): Update the setting of the
+	invocation graph encoding.
+	* ali.ads: Move field Invocation_Graph_Encoding from Unit_Record
+	to ALI_Record because the encoding applies to the whole ALI,
+	rather than one of the units (spec or body) for which the ALI
+	file was created.
+	(For_Each_Invocation_Construct, For_Each_Invocation_Relation):
+	New version.
+	* bindo.adb: Update the section on switches.  Complete the
+	section of debugging elaboration order issues.
+	(Find_Elaboration_Order): Prepare the routine for the switch
+	from the old to the new elaboration order mechanism.
+	* bindo-diagnostics.adb (Find_And_Output_Invocation_Paths):
+	Manage a visited set used by Visit_Vertex.
+	(Output_All_Cycles_Suggestions,
+	Output_Dynamic_Model_Suggestions): Clarify the nature of the
+	suggested switch.
+	(Output_Elaborate_Body_Transition): Update the diagnostic to
+	emit a better message.
+	(Output_Forced_Suggestions, Output_Full_Encoding_Suggestions):
+	Clarify the nature of the suggested switch.
+	(Visit_Vertex): Update the parameter profile to add a set of
+	invokers visited during the transition. This set prevents
+	infinite exploration of the graph in case the invocations are
+	recursive.
+	* bindo-elaborators.adb: Add a use clause for
+	Bindo.Writers.Dependency_Writers.
+	(Elaborate_Units_Common): Output the library graph after it has
+	been augmented with invocation edges. Output just the components
+	instead of outputting the whole library graph again.
+	(Elaborate_Units_Dynamic, Elaborate_Units_Static): Output the
+	dependencies as expressed in the library graph.
+	* bindo-units.adb (Invocation_Graph_Encoding): Update the
+	extraction of the invocation graph encoding.
+	* bindo-writers.adb: Add with and use clauses for Binderr and
+	Butil.
+	(palgc, plgc): New debug routine.
+	(Write_Components): Moved to the spec. Add a header for the
+	output.
+	(Write_Dependencies, Write_Dependencies_Of_Vertex,
+	Write_Dependency_Edge): New routine.
+	(Write_Elaboration_Order): Update the logic to follow the format
+	of Binde's order output.
+	(Write_Library_Graph): Do not output the components every time
+	the graph is written.
+	(Write_Unit): Output the invocation graph encoding of the unit.
+	Output the invocation constructs and relations for the unit
+	only.
+	* bindo-writers.ads (Write_Components): Moved from the body.
+	(Write_Dependencies): New routine.
+	* bindusg.adb: Prepare the routine for the switch from the old
+	to the new elaboration order mechanism.
+	* debug.adb: Binder switch -d_O is now not associated with any
+	functionality.
+	* einfo.adb (Is_Elaboration_Target): The attribute applies to
+	packages, as specified by the comment on the attribute usage.
+	* opt.ads: Add a global flag which controls the choice between
+	the new and the legacy elaboration order mechanism.
+	* sem_elab.adb: Add Package_Target to type Target_Kind.
+	(Build_Elaborate_Body_Procedure, Build_Elaborate_Procedure,
+	Build_Elaborate_Spec_Procedure, Check_Elaboration_Scenarios,
+	Check_SPARK_Model_In_Effect): Use Main_Unit_Entity to obtain the
+	entity of the main unit.
+	(Create_Package_Rep): New routine.
+	(Create_Target_Rep): Add processing for packages.
+	(Declaration_Placement_Of_Node, Has_Prior_Elaboration): Use
+	Main_Unit_Entity to obtain the entity of the main
+	 unit.
+	(Invocation_Graph_Recording_OK): Prepare the routine for the
+	switch from the old to the new elaboration order mechanism.
+	(Main_Unit_Entity): New routine.
+	(Meet_Elaboration_Requirement,
+	Process_Conditional_ABE_Variable_Reference): Use
+	Main_Unit_Entity to obtain the entity of the main unit.
+	(Process_Invocation_Instantiation): New routine.
+	(Process_Invocation_Scenario): Add processing for
+	instantiations.
+	* switch-b.adb (Scan_Binder_Switches): Prepare the routine for
+	the switch from the old to the new elaboration order mechanism.
+
+2019-07-05  Joffrey Huguet  <huguet@adacore.com>
+
+	* libgnat/a-textio.adb: Add abstract state refinment.
+	* libgnat/a-textio.ads: Add File_System abstract state.  Add
+	global contracts, contract cases, preconditions and
+	postconditions to procedures and functions.
+	(Set_Input, Set_Output, Set_Error, Standard_Input,
+	Standard_Output, Standard_Error, Current_Input, Current_Output,
+	Current_Error): Turn SPARK_Mode off.
+	(Get_Line): Turn SPARK_Mode off on Get_Line functions.
+	* libgnat/a-tideio.ads, libgnat/a-tienio.ads,
+	libgnat/a-tifiio.ads, libgnat/a-tiflio.ads,
+	libgnat/a-tiinio.ads, libgnat/a-timoio.ads: Add global
+	contracts, contract cases, preconditions and postconditions to
+	procedures and functions.
+
+2019-07-05  Arnaud Charlet  <charlet@adacore.com>
+
+	* doc/gnat_ugn/platform_specific_information.rst: Refresh doc on
+	installing from the command line on Windows.  Remove obsolete
+	part.
+	* gnat_ugn.texi: Regenerate.
+
+2019-07-05  Vasiliy Fofanov  <fofanov@adacore.com>
+
+	* libgnat/a-wichha.ads (Is_Alphanumeric): Replace comment with
+	the correct one.  Also capitalize references to False
+	throughout.
+
+2019-07-05  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* exp_ch4.adb (Expand_N_Indexed_Component): Do not expand actual
+	parameters of function calls here either.
+
+2019-07-05  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* bindo-units.adb, checks.adb, exp_attr.adb, exp_ch3.adb,
+	exp_ch4.adb, exp_pakd.adb, lib-writ.adb, libgnat/g-traceb.adb,
+	libgnat/g-traceb.ads, libgnat/s-stratt.ads, sem_aux.ads,
+	sem_util.adb: Minor reformatting.
+
+2019-07-05  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch13.adb (Build_Predicate_Functions): If a subtype that
+	carries a static predicate aspect is frozen immediately after
+	its declaration, ensure that the generated function body created
+	for predicate checking is inserted after the corresponding
+	subprogram declaration, which is created at the point the
+	declaration is elaborated.
+
+2019-07-05  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* exp_ch7.adb (Cleanup_Record): Use the underlying type when
+	checking for components with tasks.
+
+2019-07-05  Arnaud Charlet  <charlet@adacore.com>
+
+	* libgnarl/s-osinte__linux.ads: Link with -lrt before -lpthread.
+
+2019-07-05  Ed Schonberg  <schonberg@adacore.com>
+
+	* exp_pakd.adb (Expand_Bit_Packed_Element_Set): Add explicit
+	range checks when the index type of the bit-packed array is an
+	enumeration type with a non-standard representation,
+
+2019-07-05  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* sem_res.adb (Is_Control_Flow_Statement): Delay statements
+	contain an expression, which in turn may have side effects and
+	affect the infinite recursion. As a result, delay statements
+	should not be treated specially.
+
+2019-07-05  Arnaud Charlet  <charlet@adacore.com>
+
+	* libgnarl/s-linux.ads, libgnarl/s-linux__alpha.ads,
+	libgnarl/s-linux__android.ads, libgnarl/s-linux__hppa.ads,
+	libgnarl/s-linux__mips.ads, libgnarl/s-linux__riscv.ads,
+	libgnarl/s-linux__sparc.ads: Fix typos in comments.
+
+2019-07-05  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* sem_res.adb (Check_Infinite_Recursion): Reimplemented.
+	(Enclosing_Declaration_Or_Statement,
+	Invoked_With_Different_Arguments, Is_Conditional_Statement,
+	Is_Control_Flow_Statement, Is_Immediately_Within_Body,
+	Is_Raise_Idiom, Is_Raise_Statement, Is_Sole_Statement,
+	Preceded_By_Control_Flow_Statement,
+	Within_Conditional_Statement): New routines.
+
+2019-07-05  Javier Miranda  <miranda@adacore.com>
+
+	* exp_ch4.adb (Expand_N_Type_Conversion): Do not apply an
+	accessibility check when the conversion is an access to
+	class-wide interface type and it is an actual parameter.
+	* exp_ch6.adb (Expand_Call_Helper): Add documentation on the
+	accessibility level of an anonymous allocator defining the value
+	of an access parameter.
+	* sem_util.ads, sem_util.adb (Dynamic_Accessibility_Level): Add
+	support for an anonymous allocator whose type is that of a
+	stand-alone object of an anonymous access to object type.
+
+2019-07-05  Piotr Trojanek  <trojanek@adacore.com>
+
+	* einfo.ads, sem_res.adb: Typo fixes in comments.
+
+2019-07-05  Bob Duff  <duff@adacore.com>
+
+	* exp_ch6.adb (Is_Build_In_Place_Function): Narrow the check for
+	Has_Foreign_Convention to the imported case only.  If a
+	build-in-place function is exported, and called from Ada code,
+	build-in-place protocols should be used.
+
+2019-07-05  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_util.adb (Encloing_Subprogram): If Enclosing_Dynamic_Scope
+	is a loop, continue climbing the scope stack to find the
+	enclosing subprogram.
+	(Gather_Components): Handle properly a choice in a record
+	aggregate that is given by a subtype with a static predicate.
+
+2019-07-05  Javier Miranda  <miranda@adacore.com>
+
+	* debug.adb (-gnatd.K): Leave available this switch.
+	* contracts.adb (Build_And_Analyze_Contract_Only_Subprograms):
+	Remove.
+	* scil_ll.ads, scil_ll.adb (Contract_Only_Body_Flag,
+	Contract_Only_Body_Nodes, Get_Contract_Only_Body,
+	Is_Contract_Only_Body, Set_Contract_Only_Body): Remove.
+
+2019-07-05  Pierre-Marie de Rodat  <derodat@adacore.com>
+
+	* libgnat/a-strunb.ads: Import documentation from the RM
+
+2019-07-05  Pierre-Marie de Rodat  <derodat@adacore.com>
+
+	* libgnat/a-strfix.ads: Import documentation from the RM
+
+2019-07-05  Yannick Moy  <moy@adacore.com>
+
+	* adabkend.adb (Scan_Back_End_Switches): Accept -Og and -Ofast
+	switches.
+
+2019-07-05  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* ali.adb: Relocate types Invocation_Construct_Record,
+	Invocation_Relation_Record, and Invocation_Signature_Record to
+	the body of ALI.  Relocate tables Invocation_Constructs,
+	Invocation_Relations, and Invocation_Signatures to the body of
+	ALI.  Remove type Body_Placement_Codes.  Add new types
+	Declaration_Placement_Codes, and
+	Invocation_Graph_Encoding_Codes.  Update the literals of type
+	Invocation_Graph_Line_Codes.
+	(Add_Invocation_Construct): Update the parameter profile. Add an
+	invocation construct built from all attributes provided.
+	(Add_Invocation_Relation): Update the parameter profile. Add an
+	invocation relation built from all attributes provided.
+	(Body_Placement): New routine.
+	(Body_Placement_Kind_To_Code, Code_To_Body_Placement_Kind):
+	Removed.
+	(Code_To_Declaration_Placement_Kind,
+	Code_To_Invocation_Graph_Encoding_Kind, Column,
+	Declaration_Placement_Kind_To_Code, Extra,
+	For_Each_Invocation_Construct, For_Each_Invocation_Relation,
+	Invocation_Graph_Encoding,
+	Invocation_Graph_Encoding_Kind_To_Code, Invoker, Kind, Line,
+	Locations, Name): New routine.
+	(Scan_Invocation_Construct_Line): Reimplement the scanning
+	mechanism.
+	(Scan_Invocation_Graph_Attributes_Line): New routine.
+	(Scan_Invocation_Graph_Line): Use a case statement to dispatch.
+	(Scan_Invocation_Relation_Line): Reimplement the scanning
+	mechanism.
+	(Scope): New routine.
+	(Set_Invocation_Graph_Encoding, Signature, Spec_Placement,
+	Target): New routine.
+	* ali.ads: Add new type Invocation_Graph_Encoding_Kind.  Add
+	component Invocation_Graph_Encoding to type Unit_Record.
+	Relocate various types and data structures to the body of ALI.
+	(Add_Invocation_Construct, Add_Invocation_Relation): Update the
+	parameter profile.
+	(Body_Placement): New routine.
+	(Body_Placement_Kind_To_Code, Code_To_Body_Placement_Kind):
+	Removed.
+	(Code_To_Declaration_Placement_Kind,
+	Code_To_Invocation_Graph_Encoding_Kind, Column,
+	Declaration_Placement_Kind_To_Code, Extra,
+	For_Each_Invocation_Construct, For_Each_Invocation_Relation,
+	Invocation_Graph_Encoding,
+	Invocation_Graph_Encoding_Kind_To_Code, Invoker, Kind, Line,
+	Locations, Name, Scope, Set_Invocation_Graph_Encoding,
+	Signature, Spec_Placement, Target): New routine.
+	* bindo.adb: Add with clause for Binde.  Add with and use
+	clauses for Debug.  Update the documentation.  Add new switches.
+	(Find_Elaboration_Order): Dispatch to the proper elaboration
+	mechanism.
+	* bindo-augmentors.adb:
+	Remove with and use clauses for GNAT and GNAT.Sets.  Remove
+	membership set VS.  Update the parameter profiles of most
+	routines to use better parameter names.  Update the
+	implementation of most routine to use the new parameter names.
+	Remove various redundant assertions.
+	* bindo-builders.adb: Use better names for instantiated data
+	structures. Update all references to these names.  Update the
+	parameter profiles of most routines to use better parameter
+	names.  Update the implementation of most routine to use the new
+	parameter names.
+	(Build_Library_Graph): Update the parameter profile. Update the
+	call to Create.
+	(Create_Vertex): Reimplemented.
+	(Declaration_Placement_Vertex): New routine.
+	* bindo-builders.ads (Build_Library_Graph): Update the parameter
+	profile and comment on usage.
+	* bindo-diagnostics.adb: Almost a new unit.
+	* bindo-diagnostics.ads: Add a use clause for
+	Bindo.Graphs.Invocation_Graphs.  Remove package
+	Cycle_Diagnostics.
+	(Diagnose_Circularities): New routine.
+	* bindo-elaborators.adb: Remove the with and use clauses for
+	Binderr and GNAT.Sets.  Remove the use clause for
+	Bindo.Diagnostics.Cycle_Diagnostics.  Remove membership set VS.
+	Update the parameter profiles of most routines to use better
+	parameter names.  Update the implementation of most routine to
+	use the new parameter names.  (Elaborate_Units_Common): Update
+	the parameter profile. Pass an infication to the library graph
+	builder whether the dynamic model is in effect.
+	(Elaborate_Units_Dynamic, Elaborate_Units_Static): Use
+	Diagnose_Circularities to provide diagnostics.
+	(Update_Successor): Use routine In_Same_Component to determine
+	whether the predecessor and successor reside in different
+	components.
+	* bindo-graphs.adb: Add with and use clauses for Butil, Debug,
+	Output, and Bindo.Writers.  Remove with and use clauses for
+	GNAT.Lists.  Update the parameter profiles of most routines to
+	use better parameter names.  Update the implementation of most
+	routine to use the new parameter names.  Remove various
+	redundant assertions.  Remove doubly linked list EL.  Add new
+	type Precedence_Kind.
+	(Add_Cycle): New routine.
+	(Add_Vertex): Update the parameter profile. Update the creation
+	of vertex attributes.
+	(Add_Vertex_And_Complement, Body_Vertex, Column,
+	Complementary_Vertex, Copy_Cycle_Path, Cycle_Kind_Of): New
+	routines.
+	(Destroy_Invocation_Graph_Edge, Destroy_Library_Graph_Cycle,
+	Destroy_Library_Graph_Edge, Extra, File_Name,
+	Find_All_Cycles_Through_Vertex, Find_All_Cycles_With_Edge,
+	Find_Cycles, Find_First_Lower_Precedence_Cycle,
+	Get_LGC_Attributes, Has_Next, Hash_Library_Graph_Cycle,
+	Hash_Library_Graph_Cycle_Attributes, Highest_Precedence_Cycle,
+	Highest_Precedence_Edge, In_Same_Component, Insert_And_Sort,
+	Invocation_Edge_Count, Invocation_Graph_Encoding,
+	Is_Cycle_Initiating_Edge, Is_Cyclic_Edge,
+	Is_Cyclic_Elaborate_All_Edge, Is_Cyclic_Elaborate_Body_Edge,
+	Is_Cyclic_Elaborate_Edge, Is_Cyclic_Forced_Edge,
+	Is_Cyclic_Invocation_Edge, Is_Cyclic_With_Edge,
+	Is_Dynamically_Elaborated, Is_Elaborate_All_Edge,
+	Is_Elaborate_Body_Edge, Is_Elaborate_Edge: New routines.
+	(Is_Existing_Predecessor_Successor_Relation): Removed.
+	(Is_Forced_Edge, Is_Invocation_Edge, Is_Recorded_Cycle,
+	Is_Recorded_Edge, Is_With_Edge, Iterate_Edges_Of_Cycle, Kind,
+	Length): New routine.
+	(Lib_Vertex): Removed.
+	(Line, Links_Vertices_In_Same_Component,
+	Maximum_Invocation_Edge_Count, Next, Normalize_And_Add_Cycle,
+	Normalize_Cycle_Path, Number_Of_Cycles, Path, Precedence,
+	Remove_Vertex_And_Complement, Sequence_Next_Cycle): New routines.
+	(Sequence_Next_IGE_Id): Renamed to Sequence_Next_Edge.
+	(Sequence_Next_IGV_Id): Renamed to Sequence_Next_Vertex.
+	(Sequence_Next_LGE_Id): Renamed to Sequence_Next_Edge.
+	(Sequence_Next_LGV_Id): Renamed to Sequence_Next_Vertex.
+	(Set_Is_Existing_Predecessor_Successor_Relation): Removed.
+	(Set_Is_Recorded_Cycle, Set_Is_Recorded_Edge,
+	Set_LGC_Attributes, Spec_Vertex, Trace_Cycle, Trace_Edge,
+	Trace_Eol, Trace_Vertex): New routines.
+	* bindo-graphs.ads: Add with and use clauses for Types and
+	GNAT.Lists.  Update the parameter profiles of most routines to
+	use better parameter names.  Update the implementation of most
+	routine to use the new parameter names.  Add the new
+	instantiated data structures IGE_Lists, IGV_Sets, LGC_Lists,
+	LGE_Lists, LGE_Sets, LGV_Sets, and RC_Sets.  Add new type
+	Library_Graph_Cycle_Id along with an empty and initial value.
+	Remove component Lib_Vertex and add new components Body_Vertex
+	and Spec_Vertex to type Invocation_Graph_Vertex_Attributes.  Add
+	new type Library_Graph_Cycle_Kind.  Add new iterators
+	All_Cycle_Iterator and Edges_Of_Cycle_Iterator.  Add new type
+	Library_Graph_Cycle_Attributes.  Add new components
+	Cycle_Attributes, Cycles, and Dynamically_Elaborated to type
+	Library_Graph_Attributes.
+	(Body_Vertex, Column, Destroy_Invocation_Graph_Edge,
+	Destroy_Library_Graph_Cycle_Attributes,
+	Destroy_Library_Graph_Edge, Extra, File_Name, Find_Cycles,
+	Has_Elaborate_All_Cycle, Has_Next, Hash_Library_Graph_Cycle,
+	Hash_Library_Graph_Cycle_Attributes, Highest_Precedence_Cycle,
+	In_Same_Component, Invocation_Edge_Count,
+	Invocation_Graph_Encoding, Is_Dynamically_Elaborated,
+	Is_Elaborate_All_Edge, Is_Elaborate_Body_Edge,
+	Is_Elaborate_Edge, Is_Forced_Edge, Is_Invocation_Edge,
+	Is_With_Edge, Iterate_All_Cycles, Iterate_Edges_Of_Cycle, Kind):
+	New routines.
+	(Length, Lib_Vertex, (Line, Next, Number_Of_Cycles, Present,
+	Same_Library_Graph_Cycle_Attributes, Spec_Vertex): New routines.
+	* bindo-units.adb (File_Name, Invocation_Graph_Encoding): New
+	routines.
+	* bindo-units.ads: Add new instantiated data structure
+	Unit_Sets.
+	(File_Name, Invocation_Graph_Encoding): New routine.
+	* bindo-validators.adb: Remove with and use clauses for GNAT and
+	GNAT.Sets.  Remove membership set US.  Update the parameter
+	profiles of most routines to use better parameter names.  Update
+	the implementation of most routine to use the new parameter
+	names.
+	(Validate_Cycle, Validate_Cycle_Path, Validate_Cycles,
+	Validate_Invocation_Graph_Vertex): Remove the validation of
+	component Lib_Vertex. Add the validation of components
+	Body_Vertex and Spec_Vertex.
+	(Write_Error): New routine.
+	* bindo-validators.ads (Validate_Cycles): New routine.
+	* bindo-writers.adb: Update the parameter profiles of most
+	routines to use better parameter names.  Update the
+	implementation of most routine to use the new parameter names.
+	(Write_Cycle, Write_Cyclic_Edge, Write_Cycles): New routines.
+	(Write_Invocation_Graph_Vertex): Remove the output of component
+	Lib_Vertex. Add the output of components Body_Vertex and
+	Spec_Vertex.
+	* bindo-writers.ads (Write_Cycles): New routine.
+	* debug.adb: Use binder switches -d_C and -d_P, add
+	documentation on their usage.
+	* gnatbind.adb: Remove with and use clauses for Binde.  Delegate
+	the choice of elaboration mechanism to Bindo.
+	* lib-writ.adb (Column, Extra, Invoker, Kind, Line, Locations,
+	Name, Placement, Scope, Signature, Target): Removed.
+	(Write_Invocation_Graph): Moved at the top level.
+	(Write_Invocation_Graph_Attributes): New routine.
+	(Write_Invocation_Relation, Write_Invocation_Signature): Moved
+	at the top level.
+	* lib-writ.ads: Add a documentation section on invocation graph
+	attributes.
+	* sem_elab.adb (Body_Placement_Of): New routine.
+	(Declare_Invocation_Construct): Update the call to
+	Add_Invocation_Construct.
+	(Declaration_Placement_Of_Node): New routine.
+	(Get_Invocation_Attributes): Correct the retrieval of the
+	enclosing subprogram where the postcondition procedure lives.
+	(Placement_Of, Placement_Of_Node): Removed.
+	(Record_Invocation_Graph): Record the encoding format used.
+	(Record_Invocation_Graph_Encoding): New routine.
+	(Record_Invocation_Relation): Update the call to
+	Add_Invocation_Relation.
+	(Spec_Placement_Of): Removed.
+	* libgnat/g-lists.ads, libgnat/g-lists.adb (Equal): New routine.
+
+2019-07-05  Ed Schonberg  <schonberg@adacore.com>
+
+	* checks.adb (Apply_Predicate_Check): Except within the
+	subprogram body that defines the formal, do not apply predicate
+	check on a formal IN parameter: such a check is redundant and
+	its expansion can lead to out-of-scope references when it is
+	originates in a function call in a precondition,
+
+2019-07-05  Yannick Moy  <moy@adacore.com>
+
+	* sem_res.adb (Resolve_Call): Cannot inline in quantified
+	expressions.
+	* sem_util.adb, sem_util.ads (In_Quantified_Expression): New
+	function.
+
+2019-07-05  Bob Duff  <duff@adacore.com>
+
+	* doc/gnat_rm/standard_and_implementation_defined_restrictions.rst:
+	Fix typo.
+	* gnat_rm.texi: Regenerate.
+
+2019-07-05  Bob Duff  <duff@adacore.com>
+
+	* exp_attr.adb (Input): Take the No_Stream_Optimizations
+	restriction into account.
+
+2019-07-05  Claire Dross  <dross@adacore.com>
+
+	* libgnat/a-cofove.ads, libgnat/a-cofove.adb: Definite formal
+	vectors are now always bounded so that they do not need to be
+	limited anymore.
+
+2019-07-05  Dmitriy Anisimkov  <anisimko@adacore.com>
+
+	* libgnat/g-traceb.ads, libgnat/g-traceb.adb (Call_Chain): New
+	function.
+
+2019-07-04  James Clarke  <jrtc27@debian.org>
+
+	* libgnarl/s-osinte__kfreebsd-gnu.ads (clockid_t): Make type
+	definition public.
+	(CLOCK_REALTIME): Make value public.
+
+2019-07-04  Javier Miranda  <miranda@adacore.com>
+
+	* exp_tss.adb (Init_Proc): Adding missing support for access to
+	subprograms and access to protected subprograms of non-default
+	C++ constructors.
+
+2019-07-04  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gnat1drv.adb (Adjust_Global_Switches): Use proper interface to
+	set the validity settings in CodePeer mode.
+	* par-load.adb (Load): Remove all code dealing with validity
+	settings.
+	* validsw.ads (Validity_Check_Copies): Alphabetize.
+	* validsw.adb (Reset_Validity_Check_Options): Set all options to
+	off.
+	(Save_Validity_Check_Options): Save all options.
+
+2019-07-04  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* exp_ch3.adb, exp_ch4.adb, exp_ch4.ads, exp_ch5.adb,
+	exp_ch7.adb, exp_ch9.adb, exp_ch11.adb, exp_unst.adb,
+	rtsfind.ads, sem_attr.adb, sem_ch10.adb, sem_ch12.adb,
+	sem_ch13.adb, sem_dim.adb, sem_disp.adb, xref_lib.adb: Minor
+	reformatting.
+
+2019-07-04  Joffrey Huguet  <huguet@adacore.com>
+
+	* libgnarl/a-taside.ads: Add assertion policy to ignore
+	preconditions.
+	(Abort_Task, Is_Terminated, Is_Callable): Add preconditions.
+
+2019-07-04  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* doc/gnat_rm/implementation_defined_pragmas.rst: Fix
+	capitalization and parenthesis glitches.
+	* gnat_rm.texi: Regenerate.
+
+2019-07-04  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch10.adb (Remove_Context_Clauses): Handle properly the
+	removal of a limited_with_clause which appears in the library
+	unit oF the main unit, when some other unit in the context has a
+	regular with_clause on the same unit, to prevent spurious
+	visibility errors in the subsequent analysis of pending instance
+	bodies.
+
+2019-07-04  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* sem_elab.adb: Add new type Elaboration_Phase_Status along with
+	a global to keep track of the elaboration phase status.
+	Initialize all internal data structures to Nil for services
+	Elaborated_Units, Internal_Representation, and Scenario_Storage.
+	(Build_Call_Marker): Do not create a call marker when the
+	elaboration phase is not active.
+	(Build_Variable_Reference_Marker): Do not create a call marker
+	when the elaboration phase is not active.
+	(Check_Elaboration_Scenarios): Destroy all internal structures
+	when the elaboration phase does not have to run. Do not execute
+	when the elaboration phase is not active.
+	(Elaboration_Phase_Active): New routine.
+	(Finalize_All_Data_Structures): New routine.
+	(Initialize): Initialize all internal data structures and signal
+	that the elaboration phase has started.
+	(Initialize_All_Data_Structures): New routine.
+	(Initialize_Elaborated_Units): Initialize all internal data
+	structures.
+	(Initialize_Internal_Representation): Initialize all internal
+	data structures.
+	(Initialize_Scenario_Storage): Initialize all internal data
+	structures.
+	(Kill_Elaboration_Scenario): Do not execute when the elaboration
+	phase is not active.
+	(Set_Elaboration_Phase): New routine.
+	(Update_Elaboration_Scenario): Do not execute when the
+	elaboration phase is not active.
+
+2019-07-04  Gary Dismukes  <dismukes@adacore.com>
+
+	* sem_ch6.adb (Analyze_Subprogram_Body_Helper): The special
+	treatment of calling Mask_Unfrozen_Types must also be done in
+	the case of an Ignored_Ghost_Entity, because Expander_Active is
+	False in that case.
+
+2019-07-04  Yannick Moy  <moy@adacore.com>
+
+	* sem_prag.adb (Check_Library_Level_Entity): Update for new rule
+	on SPARK_Mode.
+
+2019-07-04  Justin Squirek  <squirek@adacore.com>
+
+	* sem_disp.adb (Check_Controlling_Formals): Obtain the full view
+	before type comparison.
+
+2019-07-04  Ed Schonberg  <schonberg@adacore.com>
+
+	* exp_ch4.ads, exp_ch4.adb (Build_Eq_Call): New visible
+	subprogram, extracted from Expand_Composite_Equality, to handle
+	properly the composition of equality for variant record types.
+	* exp_ch3.adb (MAke_Eq_If): Use Build_Eq_Call for each
+	component, to handle properly the case of a component with a
+	user-defined equality. Revert to predefined equality if the
+	user-defined operation is abstract, to maintain compatibility
+	with older versions,
+
+2019-07-04  Justin Squirek  <squirek@adacore.com>
+
+	* exp_ch3.adb (Build_Initialization_Call): Fixup
+	*_skip_null_excluding_check argument to handle new default.
+	(Init_Formals): Make *_skip_null_excluding_check formal default
+	to False
+	* exp_ch4.adb (Expand_N_Allocator): Add comment to note heavy
+	code duplication
+
+2019-07-04  Bob Duff  <duff@adacore.com>
+
+	* sem_ch3.adb (Access_Definition): Do not create a master unless
+	Tasking_Allowed. Otherwise, this fails on restricted runtimes.
+
+2019-07-04  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* sem_util.adb (Propagate_DIC_Attributes): Do not propagate the
+	Default_Initial_Condition attributes to an incomplete type.
+
+2019-07-04  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_attr.adb (Check_Array_Type): An array type attribute such
+	as 'First can be applied to an unconstrained array tyope when
+	the attribute reference appears within an aspect specification
+	and the prefix is a current instance, given that the prefix of
+	the attribute will become a formal of the subprogram that
+	implements the aspect (typically a predicate check).
+
+2019-07-04  Piotr Trojanek  <trojanek@adacore.com>
+
+	* sem_util.adb (Yields_Synchronized_Object): Fix typos in
+	comments.
+
+2019-07-04  Yannick Moy  <moy@adacore.com>
+
+	* sem_util.adb (Yields_Synchronized_Object): Adapt to new SPARK
+	rule.
+
+2019-07-04  Yannick Moy  <moy@adacore.com>
+
+	* sem_spark.adb (Check_Statement): Only check permission of
+	object in extended return when it is of a deep type.
+
+2019-07-04  Justin Squirek  <squirek@adacore.com>
+
+	* sem_ch12.adb (Perform_Appropriate_Analysis): Added for
+	selecting which type of analysis based on wheither the
+	instantiation is a generic at the library-level. In which case
+	expansion during analysis.
+	(Preanalyze_Actuals): Modify calls to Analyze to use the new
+	routine.
+
+2019-07-04  Ed Schonberg  <schonberg@adacore.com>
+
+	* exp_unst.adb: Handle conditional expressions.
+
+2019-07-04  Yannick Moy  <moy@adacore.com>
+
+	* sem_spark.adb (Check_Package_Spec, Check_Package_Body): Only
+	analyze parts of the code marked in SPARK.
+
+2019-07-04  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* erroutc.adb, exp_aggr.adb, inline.adb, opt.adb, sem_ch3.adb:
+	Minor reformatting.
+
+2019-07-04  Yannick Moy  <moy@adacore.com>
+
+	* sem_spark.adb (Explanation, Get_Expl): New functions to get
+	the explanation for a permission mismatch.
+	(Perm_Error, Perm_Mismatch, Perm_Error_Loop_Exit): Take
+	explanation into account for issuing a more precise error
+	message.
+	(Set_Perm_Prefixes, Set_Perm_Extensions,
+	Set_Perm_Extensions_Move): Pass suitable argument for the
+	explanation node.
+
+2019-07-04  Arnaud Charlet  <charlet@adacore.com>
+
+	* exp_aggr.adb (In_Place_Assign_OK): Moved to top level and add
+	support for record aggregates.
+	(Component_Check): Use Is_CCG_Supported_Aggregate instead of a
+	similar local predicate.
+	(Convert_To_Assignments): Take advantage of In_Place_Assign_OK
+	predicate when possible.
+	(Is_CCG_Supported_Aggregate): Return False for records with
+	representation clauses and fix the logic for dealing with nested
+	aggregates.
+
+2019-07-04  Piotr Trojanek  <trojanek@adacore.com>
+
+	* opt.adb (Set_Config_Switches): Keep assertions policy as
+	enabled when analysing internal units in GNATprove mode.
+
+2019-07-04  Arnaud Charlet  <charlet@adacore.com>
+
+	* exp_ch4.adb (Expand_Short_Circuit_Operator): Strip
+	N_Variable_Reference_Marker when checking for the presence of
+	actions.
+
+2019-07-04  Arnaud Charlet  <charlet@adacore.com>
+
+	* exp_aggr.adb (Check_Component): Take into account type
+	conversions.
+
+2019-07-04  Dmitriy Anisimkov  <anisimko@adacore.com>
+
+	* doc/gnat_ugn/platform_specific_information.rst: Document
+	Windows socket timeout particularity.
+	* gnat_ugn.texi: Regenerate.
+	* gsocket.h: Include versionhelpers.h.
+	* socket.c (__gnat_minus_500ms): New function.
+	* libgnat/g-sothco.ads (Minus_500ms_Windows_Timeout): New
+	imported function.
+	* libgnat/g-socket.adb (Set_Socket_Option): Refactor to remove
+	500ms from the requested timeout only on old Windows version.
+
+2019-07-04  Thomas Quinot  <quinot@adacore.com>
+
+	* get_scos.adb: Remove bogus, dead code.
+
+2019-07-04  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_dim.adb (Analyze_Dimension_Array_Aggregate): If the
+	component is an entity name, its dimensions are those of its
+	type.
+
+2019-07-03  Bob Duff  <duff@adacore.com>
+
+	* doc/gnat_ugn/gnat_utility_programs.rst: Document new flags in
+	GNATpp.
+
+2019-07-03  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* binde.adb: Remove with clause for System.OS_Lib.
+	(Force_Elab_Order): Refactor the majority of the code in Butil.
+	Use the new forced units iterator to obtain unit names.
+	* bindo-builders.adb: Add with and use clauses for Binderr,
+	Butil, Opt, Output, Types, GNAT, and GNAT.Dynamic_HTables.  Add
+	a hash table which maps units to line number in the forced
+	elaboration order file.
+	(Add_Unit): New routine.
+	(Build_Library_Graph): Create forced edges between pairs of
+	units listed in the forced elaboration order file.
+	(Create_Forced_Edge, Create_Forced_Edges, Destroy_Line_Number,
+	Duplicate_Unit_Error, Hash_Unit, Internal_Unit_Info,
+	Is_Duplicate_Unit, Missing_Unit_Info): New routines.
+	* bindo-graphs.adb (Is_Internal_Unit, Is_Predefined_Unit):
+	Refactor some of the behavior to Bindo-Units.
+	* bindo-graphs.ads: Enable the enumeration literal for forced
+	edges.
+	* bindo-units.adb, bindo-units.ads (Is_Internal_Unit,
+	Is_Predefined_Unit): New routines.
+	* butil.adb: Add with and use clauses for Opt, GNAT, and
+	System.OS_Lib.  Add with clause for Unchecked_Deallocation.
+	(Has_Next, Iterate_Forced_Units, Next, Parse_Next_Unit_Name,
+	Read_Forced_Elab_Order_File): New routines.
+	* butil.ads: Add with and use clauses for Types.  Add new
+	iterator over the units listed in the forced elaboration order
+	file.
+	(Has_Next, Iterate_Forced_Units, Next): New routine.
+	* namet.adb, namet.ads (Present): New routine.
+
+2019-07-03  Bob Duff  <duff@adacore.com>
+
+	* sem_ch3.adb (Access_Definition): The code was creating a
+	master in the case where the designated type is a class-wide
+	interface type. Create a master in the noninterface case as
+	well. That is, create a master for all limited class-wide types.
+
+2019-07-03  Yannick Moy  <moy@adacore.com>
+
+	* erroutc.adb (Sloc_In_Range): New function to determine whether
+	the range of a pragma Warnings covers a location, taking
+	instantiations into account.
+
+2019-07-03  Johannes Kanig  <kanig@adacore.com>
+
+	* osint.ads, osint.adb (Get_First_Main_File_Name): New routine
+	to access the first file provided on the command line.
+
+2019-07-03  Ed Schonberg  <schonberg@adacore.com>
+
+	* inline.adb (Process_Formals_In_Aspects): New procedure within
+	Expand_Inlined_Call, to perform a replacement of references to
+	formals that appear in aspect specifications within the body
+	being inlined.
+
+2019-07-03  Justin Squirek  <squirek@adacore.com>
+
+	* sem_ch8.adb (Analyze_Object_Renaming): Add call to search for
+	the appropriate actual subtype of the object renaming being
+	analyzed.
+	(Check_Constrained_Object): Minor cleanup.
+
+2019-07-03  Yannick Moy  <moy@adacore.com>
+
+	* sem_spark.adb (Get_Observed_Or_Borrowed_Expr): New function to
+	return go through traversal function call.
+	(Check_Type): Consistently use underlying type.
+	(Get_Perm): Adapt for case of elaboration code where variables
+	are not declared in the environment. Remove incorrect handling
+	of borrow and observe.
+
+2019-07-03  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* inline.adb (Build_Return_Object_Formal): New routine.
+	(Can_Split_Unconstrained_Function): Code clean up.
+	(Copy_Formals,Copy_Return_Object): New routines.
+	(Split_Unconstrained_Function): Code clean up and refactoring.
+
+2019-07-03  Gary Dismukes  <dismukes@adacore.com>
+
+	* bindo-augmentors.adb, bindo-augmentors.ads,
+	bindo-builders.ads, bindo-elaborators.adb, sem_ch12.adb,
+	sem_ch13.adb, sem_spark.adb, sinfo.ads: Minor editorial
+	corrections and reformatting.
+
+2019-07-03  Bob Duff  <duff@adacore.com>
+
+	* sem_warn.adb (Check_Infinite_Loop_Warning): Avoid the warning
+	if an Iterator_Specification is present.
+
+2019-07-03  Bob Duff  <duff@adacore.com>
+
+	* doc/gnat_ugn/gnat_utility_programs.rst: Document default
+	new-line behavior.
+
+2019-07-03  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* ali.adb: Add with and use clauses for GNAT,
+	GNAT.Dynamic_HTables, and Snames.  Add a map from invocation
+	signature records to invocation signature ids.  Add various
+	encodings of invocation-related attributes.  Sort and update
+	table Known_ALI_Lines.
+	(Add_Invocation_Construct, Add_Invocation_Relation,
+	Body_Placement_Kind_To_Code, Code_To_Body_Placement_Kind,
+	Code_To_Invocation_Construct_Kind, Code_To_Invocation_Kind,
+	Code_To_Invocation_Graph_Line_Kind, Destroy, Hash): New
+	routines.
+	(Initialize_ALI): Sort the initialization sequence. Add
+	initialization for all invocation-related tables.
+	(Invocation_Construct_Kind_To_Code,
+	Invocation_Graph_Line_Kind_To_Code, Invocation_Kind_To_Code,
+	Invocation_Signature_Of, Present): New routines.
+	(Scan_ALI): Add the default values for invocation-related ids.
+	Scan invocation graph lines.
+	(Scan_Invocation_Graph_Line): New routine.
+	* ali.ads: Add with clause for GNAT.Dynamic_Tables.  Add types
+	for invocation constructs, relations, and signatures.  Add
+	tables for invocation constructs, relations, and signatures.
+	Update Unit_Record to capture invocation-related ids.  Relocate
+	table Unit_Id_Tables and subtypes Unit_Id_Table, Unit_Id_Array
+	from Binde.
+	(Add_Invocation_Construct, Add_Invocation_Relation,
+	Body_Placement_Kind_To_Code, Code_To_Body_Placement_Kind,
+	Code_To_Invocation_Construct_Kind, Code_To_Invocation_Kind,
+	Code_To_Invocation_Graph_Line_Kind,
+	Invocation_Construct_Kind_To_Code,
+	Invocation_Graph_Line_Kind_To_Code, Invocation_Kind_To_Code,
+	Invocation_Signature_Of, Present): New routines.
+	* binde.adb: Add with and use clause for Types.  Add use clause
+	for ALI.Unit_Id_Tables;
+	* binde.ads: Relocate table Unit_Id_Tables and subtypes
+	Unit_Id_Table, Unit_Id_Array to ALI.
+	* bindgen.adb: Remove with and use clause for ALI.
+	* bindgen.ads: Remove with and use clause for Binde.  Add with
+	and use clause for ALI.
+	* bindo.adb,  bindo.ads, bindo-augmentors.adb,
+	bindo-augmentors.ads, bindo-builders.adb, bindo-builders.ads,
+	bindo-diagnostics.adb, bindo-diagnostics.ads,
+	bindo-elaborators.adb, bindo-elaborators.ads, bindo-graphs.adb,
+	bindo-graphs.ads, bindo-units.adb, bindo-units.ads,
+	bindo-validators.adb, bindo-validators.ads, bindo-writers.adb,
+	bindo-writers.ads: New units.
+	* debug.adb: Use and describe GNAT debug switches -gnatd_F and
+	-gnatd_G.  Add GNATbind debug switches in the ranges dA .. dZ,
+	d.a .. d.z, d.A .. d.Z, d.1 .. d.9, d_a .. d_z, d_A .. d_Z, and
+	d_1 .. d_9.  Use and describe GNATbind debug switches -d_A,
+	-d_I, -d_L, -d_N, -d_O, -d_T, and -d_V.
+	* exp_util.adb, exp_util.ads (Exceptions_OK): Relocate to
+	Sem_Util.
+	* gnatbind.adb: Add with and use clause for Bindo.  Use the new
+	Bindo elaboration order only when -d_N is in effect.
+	* lib-writ.adb
+	(Column, Extra, Invoker, Kind, Line, Locations, Name, Placement,
+	Scope, Signature, Target): New routines.
+	(Write_ALI): Output all invocation-related data.
+	(Write_Invocation_Graph): New routine.
+	* lib-writ.ads: Document the invocation graph ALI line.
+	* namet.adb, namet.ads (Present): New routines.
+	* sem_ch8.adb (Find_Direct_Name): Capture the status of
+	elaboration checks and warnings of an identifier.
+	(Find_Expanded_Name): Capture the status of elaboration checks
+	and warnings of an expanded name.
+	* sem_ch12.adb (Analyze_Generic_Package_Declaration): Ensure
+	that invocation graph-related data within the body of the main
+	unit is encoded in the ALI file.
+	(Analyze_Generic_Subprogram_Declaration): Ensure that invocation
+	graph-related data within the body of the main unit is encoded
+	in the ALI file.
+	(Analyze_Package_Instantiation): Perform minimal decoration of
+	the instance entity.
+	(Analyze_Subprogram_Instantiation): Perform minimal decoration
+	of the instance entity.
+	* sem_elab.adb: Perform heavy refactoring of all code. The unit
+	is now split into "services" which specialize in one area of ABE
+	checks.  Add processing in order to capture invocation-graph
+	related attributes of the main unit, and encode them in the ALI
+	file.  The Processing phase can now operate in multiple modes,
+	all described by type Processing_Kind.  Scenarios and targets
+	are now distinct at the higher level, and carry their own
+	representations. This eliminates the need to constantly
+	recompute their attributes, and offers the various processors a
+	uniform interface.  The various initial states of the Processing
+	phase are now encoded using type Processing_In_State, and
+	xxx_State constants.
+	* sem_elab.ads: Update the literals of type
+	Enclosing_Level_Kind.  Add Inline pragmas on several routines.
+	* sem_prag.adb (Process_Inline): Ensure that invocation
+	graph-related data within the body of the main unit is encoded
+	in the ALI file.
+	* sem_util.adb (Enclosing_Generic_Body, Enclosing_Generic_Unit):
+	Code clean up.
+	(Exceptions_OK): Relocated from Sem_Util.
+	(Mark_Save_Invocation_Graph_Of_Body): New routine.
+	* sem_util.ads (Exceptions_OK): Relocated from Sem_Util.
+	(Mark_Save_Invocation_Graph_Of_Body): New routine.
+	* sinfo.adb (Is_Elaboration_Checks_OK_Node): Now applicable to
+	N_Variable_Reference_Marker.
+	(Is_Elaboration_Warnings_OK_Node): Now applicable to
+	N_Expanded_Name, N_Identifier, N_Variable_Reference_Marker.
+	(Is_Read): Use Flag4.
+	(Is_SPARK_Mode_On_Node): New applicable to
+	N_Variable_Reference_Marker.
+	(Is_Write): Use Flag5.
+	(Save_Invocation_Graph_Of_Body): New routine.
+	(Set_Is_Elaboration_Checks_OK_Node): Now applicable to
+	N_Variable_Reference_Marker.
+	(Set_Is_Elaboration_Warnings_OK_Node): Now applicable to
+	N_Expanded_Name, N_Identifier, N_Variable_Reference_Marker.
+	(Set_Is_SPARK_Mode_On_Node): New applicable to
+	N_Variable_Reference_Marker.
+	(Set_Save_Invocation_Graph_Of_Body): New routine.
+	* sinfo.ads: Update the documentation of attributes
+	Is_Elaboration_Checks_OK_Node, Is_Elaboration_Warnings_OK_Node,
+	Is_SPARK_Mode_On_Node.  Update the flag usage of attributes
+	Is_Read, Is_Write.  Add attribute Save_Invocation_Graph_Of_Body
+	and update its occurrence in nodes.
+	(Save_Invocation_Graph_Of_Body): New routine along with pragma
+	Inline.
+	(Set_Save_Invocation_Graph_Of_Body): New routine along with
+	pragma Inline.
+	* switch-b.adb (Scan_Binder_Switches): Refactor the scanning of
+	debug switches.
+	(Scan_Debug_Switches): New routine.
+	* libgnat/g-dynhta.adb, libgnat/g-dynhta.ads (Contains): New routine.
+	* libgnat/g-graphs.adb (Associate_Vertices): Update the use of
+	Component_Vertex_Iterator.
+	(Contains_Component, Contains_Edge, Contains_Vertex, Has_Next):
+	Reimplemented.
+	(Iterate_Component_Vertices): New routine.
+	(Iterate_Vertices): Removed.
+	(Next): Update the parameter profile.
+	(Number_Of_Component_Vertices, Number_Of_Outgoing_Edges): New
+	routines.
+	* libgnat/g-graphs.ads: Update the initialization of
+	No_Component.  Add type Component_Vertex_Iterator.  Remove type
+	Vertex_Iterator.
+	(Has_Next): Add new versions and remove old ones.
+	(Iterate_Component_Vertices): New routine.
+	(Iterate_Vertices): Removed.
+	(Next): Add new versions and remove old ones.
+	(Number_Of_Component_Vertices, Number_Of_Outgoing_Edges): New
+	routines.
+	* libgnat/g-sets.adb (Contains): Reimplemented.
+	* gcc-interface/Make-lang.in (GNATBIND_OBJS): Add
+	GNAT.Dynamic_HTables, GNAT.Graphs and Bindo units.
+	* rtsfind.ads: Remove extra space.
+
+2019-07-03  Yannick Moy  <moy@adacore.com>
+
+	* sem_spark.adb: Add support for locally borrowing and observing
+	a path.
+	(Get_Root_Object): Add parameter Through_Traversal to denote
+	when we are interesting in getting to the traversed parameter.
+	(Is_Prefix_Or_Almost): New function to support detection of
+	illegal access to borrowed or observed paths.
+	(Check_Pragma): Add analysis of assertion pragmas.
+
+2019-07-03  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch13.adb (Build_Predicate_Functions): In a generic context
+	we do not build the bodies of predicate fuctions, but the
+	expression in a static predicate must be elaborated to allow
+	case coverage checking within the generic unit.
+	(Build_Discrete_Static_Predicate): In a generic context, return
+	without building function body once the
+	Static_Discrete_Predicate expression for the type has been
+	constructed.
+
+2019-07-03  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* bindgen.adb, inline.adb, layout.adb, sem_ch12.adb,
+	sem_ch13.adb, sem_ch7.adb, styleg.adb: Minor reformatting.
+
+2019-07-03  Bob Duff  <duff@adacore.com>
+
+	* par-ch3.adb (P_Defining_Identifier): Call
+	Check_Defining_Identifier_Casing.
+	* style.ads, styleg.ads, styleg.adb
+	(Check_Defining_Identifier_Casing): New procedure to check for
+	mixed-case defining identifiers.
+	* stylesw.ads, stylesw.adb (Style_Check_Mixed_Case_Decls): New
+	flag for checking for mixed-case defining identifiers.
+	* doc/gnat_ugn/building_executable_programs_with_gnat.rst:
+	Document new feature.
+	* gnat_ugn.texi: Regenerate.
+
+2019-07-03  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* doc/gnat_ugn/building_executable_programs_with_gnat.rst
+	(Warning message control): Document that -gnatw.z/Z apply to
+	array types.
+	* freeze.adb (Freeze_Entity): Give -gnatw.z warning for array
+	types as well, but not if the specified alignment is the minimum
+	one.
+	* gnat_ugn.texi: Regenerate.
+
+2019-07-03  Bob Duff  <duff@adacore.com>
+
+	* einfo.ads, exp_util.adb, layout.ads, sinfo.ads: Spell "laid"
+	correctly.
+
+2019-07-03  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch13.adb (Analyze_Attribute_Definition_Clause): No error
+	message on attribute applied to a renaming when the renamed
+	object is an aggregate (from code reading).
+	(Check_Aspect_At_End_Of_Declarations): In a generic context
+	where freeze nodes are not generated, the original expression
+	for an aspect may need to be analyzed to precent spurious
+	conformance errors when compared with the expression that is
+	anakyzed at the end of the current declarative list.
+
+2019-07-03  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* layout.adb (Layout_Type): Do not set the component size of an
+	array with a scalar component if the component type is
+	overaligned.
+
+2019-07-03  Ed Schonberg  <schonberg@adacore.com>
+
+	* inline.adb (Make_Loop_Labels_Unique): New procedure to modify
+	the source code of subprograms that are inlined by the
+	front-end, to prevent accidental duplication between loop labels
+	in the inlined code and the code surrounding the inlined call.
+
+2019-07-03  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* doc/gnat_ugn/elaboration_order_handling_in_gnat.rst: Update
+	the section on resolving elaboration circularities to eliminate
+	certain combinations of switches which together do not produce
+	the desired effect and confuse users.
+	* gnat_ugn.texi: Regenerate.
+
+2019-07-03  Arnaud Charlet  <charlet@adacore.com>
+
+	* bindgen.adb (Gen_Main): Disable generation of reference to
+	Ada_Main_Program_Name for CCG.
+	* bindusg.adb (Display): Add -G to the command-line usage for
+	gnatbind.
+	* opt.ads (Generate_C_Code): Update comment.
+	* switch-b.adb (Scan_Binder_Switches): Add handling for -G.
+
+2019-07-03  Arnaud Charlet  <charlet@adacore.com>
+
+	* sem_ch7.adb (Has_Referencer): Do not consider inlined
+	subprograms when generating C code, which allows us to generate
+	static inline subprograms.
+
+2019-07-03  Justin Squirek  <squirek@adacore.com>
+
+	* sem_ch6.adb (Check_Conformance): Add expression checking for
+	constant modifiers in anonymous access types (in addition to
+	"non-null" types) so that they are considered "matching" for
+	subsequent conformance tests.
+
+2019-07-03  Arnaud Charlet  <charlet@adacore.com>
+
+	* doc/gnat_rm/standard_and_implementation_defined_restrictions.rst:
+	Clarify wording on No_Multiple_Elaboration.
+	* gnat_rm.texi: Regenerate.
+
+2019-07-03  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch8.adb (Find_Selected_Component): If the prefix is the
+	current instance of a type or subtype, complete the resolution
+	of the name by finding the component of the type denoted by the
+	selector name.
+
+2019-07-03  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* doc/gnat_rm/interfacing_to_other_languages.rst (Interfacing to C):
+	Document that boolean types with convention C now map to C99 bool.
+	* gnat_rm.texi: Regenerate.
+
+2019-07-03  Javier Miranda  <miranda@adacore.com>
+
+	* exp_attr.adb (Expand_Min_Max_Attribute): Code cleanup:
+	removing code that it is now never executed in the CCG compiler
+	(dead code).
+
+2019-07-02  Iain Sandoe  <iain@sandoe.co.uk>
+
+	* libgnat/system-darwin-ppc.ads: Set Stack_Check_Probes True for
+	PPC Darwin.
+
+2019-07-01  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch12.adb (Is_Defaulted): New predicate in
+	Check_Formal_Package_Intance, to skip the conformance of checks
+	on parameters of a formal package that are defaulted,
+
+2019-07-01  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* checks.adb, exp_ch9.adb, exp_unst.adb, sem_ch4.adb,
+	sem_prag.adb, sem_spark.adb: Minor reformatting.
+
+2019-07-01  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_attr.adb (Analyze_Attribute, case Enum_Rep): Allow prefix
+	of attribute to be an attribute reference of a discrete type.
+
+2019-07-01  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* sem_ch12.adb (Analyze_Subprogram_Instantiation): Move up
+	handling of Has_Pragma_Inline_Always and deal with
+	Has_Pragma_No_Inline.
+
+2019-07-01  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch3.adb (Build_Derived_Record_Type): If the parent type is
+	declared as a subtype of a private type with an inherited
+	discriminant constraint, its generated full base appears as a
+	record subtype, so we need to retrieve its oen base type so that
+	the inherited constraint can be applied to it.
+
+2019-07-01  Yannick Moy  <moy@adacore.com>
+
+	* sem_spark.adb: Completely rework the algorithm for ownership
+	checking, as the rules in SPARK RM have changed a lot.
+	* sem_spark.ads: Update comments.
+
+2019-07-01  Dmitriy Anisimkov  <anisimko@adacore.com>
+
+	* gsocket.h (Has_Sockaddr_Len): Use the offset of sin_family offset in
+	the sockaddr_in structure to determine the existence of length field
+	before the sin_family.
+
+2019-07-01  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_prag.adb (Analyze_Pragma, case Weak_External): Pragma only
+	applies to entities with run-time addresses, not to types.
+
+2019-07-01  Piotr Trojanek  <trojanek@adacore.com>
+
+	* einfo.adb, sem_ch7.adb, sem_prag.adb, sem_util.adb: Update
+	references to the SPARK RM after the removal of Rule 7.1.4(5).
+
+2019-07-01  Piotr Trojanek  <trojanek@adacore.com>
+
+	* sysdep.c: Cleanup references to LynuxWorks in docs and
+	comments.
+
+2019-07-01  Ed Schonberg  <schonberg@adacore.com>
+
+	* checks.adb (Insert_Valid_Check): Do not apply validity check
+	to variable declared within a protected object that uses the
+	Lock_Free implementation, to prevent unwarranted constant
+	folding, because entities within such an object msut be treated
+	as volatile.
+
+2019-07-01  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* exp_ch9.adb (Check_Inlining): Deal with Has_Pragma_No_Inline.
+
+2019-07-01  Ed Schonberg  <schonberg@adacore.com>
+
+	* exp_unst.adb (Visit_Node, Check_Static_Type): Improve the
+	handling of private and incomplete types whose full view is an
+	access type, to detect additional uplevel references in dynamic
+	bounds. This is relevant to N_Free_Statement among others that
+	manipulate types whose full viww may be an access type.
+
+2019-07-01  Pat Rogers  <rogers@adacore.com>
+
+	* doc/gnat_rm/representation_clauses_and_pragmas.rst: Correct
+	size indicated for R as a component of an array.
+	* gnat_rm.texi: Regenerate.
+
+2019-07-01  Justin Squirek  <squirek@adacore.com>
+
+	* libgnat/s-win32.ads: Add definition for ULONG, modify
+	OVERLAPPED type, and add appropriate pragmas.
+
+2019-07-01  Bob Duff  <duff@adacore.com>
+
+	* gnat1drv.adb (gnat1drv): Call Write_ALI if the main unit is
+	ignored-ghost.
+
+2019-07-01  Yannick Moy  <moy@adacore.com>
+
+	* sem_ch4.adb (Operator_Check): Refine error message.
+
+2019-07-01  Piotr Trojanek  <trojanek@adacore.com>
+
+	* libgnat/a-calend.ads: Revert "Global => null" contracts on
+	non-pure routines.
+
+2019-07-01  Piotr Trojanek  <trojanek@adacore.com>
+
+	* exp_attr.adb, libgnat/g-graphs.ads: Fix typos in comments:
+	componant -> component.
+
+2019-07-01  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* libgnat/g-graphs.adb: Use type Directed_Graph rather than
+	Instance in various routines.
+	* libgnat/g-graphs.ads: Change type Instance to Directed_Graph.
+	Update various routines that mention the type.
+
+2019-07-01  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* libgnat/g-sets.adb: Use type Membership_Set rathern than
+	Instance in various routines.
+	* libgnat/g-sets.ads: Change type Instance to Membership_Set.
+	Update various routines that mention the type.
+
+2019-07-01  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* libgnat/g-lists.adb: Use type Doubly_Linked_List rather than
+	Instance in various routines.
+	* libgnat/g-lists.ads: Change type Instance to
+	Doubly_Linked_List. Update various routines that mention the
+	type.
+
+2019-07-01  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* libgnat/g-dynhta.adb: Use type Dynamic_Hash_Table rather than
+	Instance in various routines.
+	* libgnat/g-dynhta.ads: Change type Instance to
+	Dynamic_Hash_Table. Update various routines that mention the
+	type.
+
+2019-07-01  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* exp_attr.adb, exp_ch7.adb, exp_unst.adb, sem_ch3.adb,
+	sem_util.adb, uintp.adb, uintp.ads: Minor reformatting.
+
+2019-07-01  Javier Miranda  <miranda@adacore.com>
+
+	* exp_attr.adb (Expand_Min_Max_Attribute): Disable expansion of
+	'Min/'Max on integer, enumeration, fixed point and floating
+	point types since the CCG backend now provides in file
+	standard.h routines to support it.
+
+2019-07-01  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* impunit.adb: Add GNAT.Graphs to list Non_Imp_File_Names_95.
+	* Makefile.rtl, gcc-interface/Make-lang.in: Register unit
+	GNAT.Graphs.
+	* libgnat/g-dynhta.adb: Various minor cleanups (use Present
+	rather than direct comparisons).
+	(Delete): Reimplement to use Delete_Node.
+	(Delete_Node): New routine.
+	(Destroy_Bucket): Invoke the provided destructor.
+	(Present): New routines.
+	* libgnat/g-dynhta.ads: Add new generic formal Destroy_Value.
+	Use better names for the components of iterators.
+	* libgnat/g-graphs.adb, libgnat/g-graphs.ads: New unit.
+	* libgnat/g-lists.adb: Various minor cleanups (use Present
+	rather than direct comparisons).
+	(Delete_Node): Invoke the provided destructor.
+	(Present): New routine.
+	* libgnat/g-lists.ads: Add new generic formal Destroy_Element.
+	Use better names for the components of iterators.
+	(Present): New routine.
+	* libgnat/g-sets.adb, libgnat/g-sets.ads (Destroy, Preset,
+	Reset): New routines.
+
+2019-07-01  Dmitriy Anisimkov  <anisimko@adacore.com>
+
+	* libgnat/g-sothco.adb (Get_Address): Fix the case when AF_INET6
+	is not defined.
+
+2019-07-01  Ed Schonberg  <schonberg@adacore.com>
+
+	* exp_attr.adb (Expand_Attribute_Reference, case Invalid_Value):
+	Resolve result of call to Get_Simple_Init_Val, which may be a
+	conversion of a literal.
+
+2019-07-01  Hristian Kirtchev  <kirtchev@adacore.com>
+
+	* freeze.adb (Freeze_Expression): Remove the horrible useless
+	name hiding of N. Insert the freeze nodes generated by the
+	expression prior to the expression when the nearest enclosing
+	scope is transient.
+
+2019-07-01  Pierre-Marie de Rodat  <derodat@adacore.com>
+
+	* doc/gnat_ugn/building_executable_programs_with_gnat.rst: Fix
+	formatting issues in the -gnatR section.
+	* gnat_ugn.texi: Regenerate.
+
+2019-06-30  Iain Sandoe  <iain@sandoe.co.uk>
+
+	* gnatlink.adb (Link_Step): Remove duplicate -static-libgcc switches.
+	Push -shared-libgcc explicitly, when it is the target default (unless
+	overidden by the static flag).
+	When the user has put an instance of shared/static-libgcc do not push
+	a duplicate of this.
+
+2019-06-29  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/decl.c (gnat_to_gnu_entity): Beep up comment on SAVED,
+	and tweak comment on the assertion about the scopes of Itypes.  Do not
+	skip the regular processing for Itypes that are E_Record_Subtype with
+	a Cloned_Subtype.  Get the Cloned_Subtype for every E_Record_Subtype
+	if the type is dummy and hasn't got its own freeze node.
+	<E_Record_Subtype>: Save again the DECL of the Cloned_Subtype, if any.
+	<E_Access_Subtype>: Save again the DECL of the equivalent type.
+	(Gigi_Equivalent_Type) <E_Access_Subtype>: New case.
+
+2019-06-29  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/utils.c (unchecked_convert): Tweak comment.  Only skip
+	dereferences when padding to have the same size on both sides.  Do it
+	for destination types with self-referential size too.
+
+2019-06-29  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Record_Type>: If the
+	type requires strict alignment, then set the RM size to the type size.
+	Rework handling of alignment and sizes of tagged types in ASIS mode.
+	(validate_size): Rename local variable and remove special handling for
+	strict-alignment types.
+	* gcc-interface/utils.c (finish_record_type): Constify local variables
+	and use properly typed constants.
+
+2019-06-29  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/decl.c (gnat_to_gnu_field): Rework error messages for
+	fields requiring strict alignment, add explicit test on Storage_Unit
+	for position and size, and mention type alignment for position.
+
+2019-06-29  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/trans.c (mark_visited_r): Set TYPE_SIZES_GIMPLIFIED on
+	the main variant of a type, if any.
+
+2019-06-29  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/decl.c (set_nonaliased_component_on_array_type): Add
+	missing guard for the presence of TYPE_CANONICAL.
+	(set_reverse_storage_order_on_array_type): Likewise.
+
+2019-06-29  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/gigi.h (make_packable_type): Remove default value.
+	(value_factor_p): Tweak prototype.
+	* gcc-interface/decl.c (gnat_to_gnu_entity): Add comment.
+	(gnat_to_gnu_component_type): Likewise.
+	(gnat_to_gnu_field): Likewise.  Fetch the position of the field earlier
+	and simplify the condition under which the type is packed.  Declare
+ 	local variable is_bitfield.  Pass 1 as max_align to make_packable_type
+	if it is set to true.
+	(copy_and_substitute_in_layout): Pass 0 to make_packable_type.
+	* gcc-interface/utils.c (make_packable_array_type): New function.
+	(make_packable_type): Use it to rewrite the type of array field.
+	(maybe_pad_type): Pass align parameter to make_packable_type.
+	(create_field_decl): Minor tweaks.
+	(value_factor_p): Assert that FACTOR is a power of 2 and replace the
+	modulo computation by a masking operation.
+
+2019-06-25  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/decl.c (gnat_to_gnu_entity): Remove superfluous test
+	in previous change.
+	* gcc-interface/gigi.h (maybe_character_type): Fix formatting.
+	(maybe_character_value): Likewise.
+
+2019-06-24  Jan Hubicka  <jh@suse.cz>
+
+	* gcc-interface/decl.c (gnat_to_gnu_entity): Check that
+	type is array or integer prior checking string flag.
+	* gcc-interface/gigi.h (maybe_character_type): Likewise.
+	(maybe_character_value): Likewise.
+
+2019-06-24  Martin Sebor  <msebor@redhat.com>
+
+	* gcc-interface/utils.c (handle_nonnull_attribute): Quote attribute
+	name.
+
+2019-06-18  Arnaud Charlet  <charlet@adacore.com>
+
+	PR ada/80590
+	* sem_ch5.adb (Analyze_Loop_Statement): Avoid exception propagation
+	during normal processing.
+
+2019-06-17  Arnaud Charlet  <charlet@adacore.com>
+
+	PR ada/80590
+	* exp_ch9.adb (Expand_N_Delay_Relative_Statement): Swap the two
+	conditions to avoid a unnecessary exception propagation in the default
+	case.
+
+2019-05-28  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/utils.c (handle_stack_protect_attribute): Move around.
+
+2019-05-28  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* doc/gnat_rm/implementation_defined_pragmas.rst (Machine_Attribute):
+	Document additional optional parameters.
+	* sem_prag.adb (Analyze_Pragma) <Pragma_Machine_Attribute>: Accept
+	more than one optional parameter.
+	* gcc-interface/decl.c (prepend_one_attribute_pragma): Alphabetize
+	the list of supported pragmas.  Simplify the handling of parameters
+	and add support for more than one optional parameter.
+	* gcc-interface/utils.c (attr_cold_hot_exclusions): New constant.
+	(gnat_internal_attribute_table): Add entry for no_icf, noipa, flatten,
+	used, cold, hot, target and target_clones.
+	(begin_subprog_body): Do not create the RTL for the subprogram here.
+	(handle_noicf_attribute): New static function.
+	(handle_noipa_attribute): Likewise.
+	(handle_flatten_attribute): Likewise.
+	(handle_used_attribute): Likewise.
+	(handle_cold_attribute): Likewise.
+	(handle_hot_attribute): Likewise.
+	(handle_target_attribute): Likewise.
+	(handle_target_clones_attribute): Likewise.
+
+2019-05-28  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/trans.c (lvalue_required_for_attribute_p): Return 0
+	for 'Size too.
+	(Identifier_to_gnu): Use the actual subtype for a reference to a
+	packed array in a return statement.
+	(Attribute_to_gnu) <Attr_Size>: Do not strip VIEW_CONVERT_EXPRs from
+	the prefix in every case.
+
+2019-05-28  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/trans.c (gnat_to_gnu): Remove superfluous tests on
+	Backend_Overflow_Checks_On_Target and rework comments.
+
+2019-05-28  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/trans.c (walk_nesting_tree): New static function.
+	(finalize_nrv): Use it to walk the entire nesting tree.
+
+2019-05-28  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Record_Subtype>: Remove
+	obsolete test on Is_For_Access_Subtype.
+
+2019-05-28  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/decl.c (components_to_record): Set a name on the type
+	created for the REP part, if any.
+	* gcc-interface/utils.c (finish_record_type): Only take the maximum
+	when merging sizes for a variant part at offset 0.
+	(merge_sizes): Rename has_rep parameter into max.
+
+2019-05-28  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/utils.c (gnat_internal_attribute_table): Add support
+	for stack_protect attribute.
+	(handle_stack_protect_attribute): New static function.
+
+2019-05-28  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/decl.c (intrin_arglists_compatible_p): Do not return
+	false if the internal builtin uses a variable list.
+
+2019-05-27  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/trans.c (Call_to_gnu): Do not initialize the temporary
+	created out of addressability concerns if it's for the _Init parameter
+	of an initialization procedure.
+
+2019-05-27  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/ada-builtin-types.def: New file.
+	* gcc-interface/ada-builtins.def: Likewise.
+	* gcc-interface/ada-tree.h (BUILT_IN_LIKELY): New macro.
+	(BUILT_IN_UNLIKELY): Likewise.
+	* gcc-interface/trans.c (independent_iterations_p): Initialize the
+	auto-vector to 16 elements.
+	(Call_to_gnu): Remove local variable and change the vector of actual
+	parameters to an auto-vector.  Do not convert actual parameters to
+	the argument type for front-end built-in functions.  Add support for
+	front-end built-in functions.
+	(build_noreturn_cond): Use internal instead of built-in function.
+	* gcc-interface/utils.c (c_builtin_type): Include ada-builtin-types.def
+	(install_builtin_function_types): Likewise.
+	(install_builtin_functions): Include ada-builtins.def first.
+
+2019-05-27  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/utils.c (maybe_pad_type): Issue the warning for the
+	specific case of component types preferably.
+
+2019-05-27  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/trans.c (Identifier_to_gnu): Minor tweaks.
+	(gnat_to_gnu): Do not convert the result if it is a reference to an
+	unconstrained array used as the prefix of an attribute reference that
+	requires an lvalue.
+
+2019-05-27  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/trans.c (Gigi_Types_Compatible): New predicate.
+	(Identifier_to_gnu): Use it to assert that the type of the identifier
+	and that of its entity are compatible for gigi.  Rename a couple of
+	local variables and separate the processing of the result type.
+
+2019-05-27  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/trans.c (Call_to_gnu): Use the unpadded type when
+	putting back an intermediate conversion the type of the actuals.
+
+2019-05-27  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/trans.c (gnat_to_gnu) <Shift operations>: Convert the
+	count to the unsigned version of its base type before proceeding.
+
+2019-05-16  Martin Sebor  <msebor@redhat.com>
+
+	* gcc-interface/trans.c (check_inlining_for_nested_subprog): Quote
+	reserved names.
+
+2019-05-08  Arnaud Charlet  <charlet@adacore.com>
+
+	* standard.ads.h: New file.
+
+2019-05-07  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	* gcc-interface/Makefile.in (install-gcc-specs): Use foreach.
+	Honor DESTDIR.
+
+2019-04-29  Michael K. Darling  <darlingm@gmail.com>
+
+	* gnatvsn.ads: Bump Library_Version to 10.
+
+2019-04-24  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
+	    Bernd Edlinger  <bernd.edlinger@hotmail.de>
+	    Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/89093
+	* raise-gcc.c (TARGET_ATTRIBUTE): Define.
+	(continue_unwind, personality_body, PERSONALITY_FUNCTION): Add
+	TARGET_ATTRIBUTE.
+
+2019-04-07  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* libgnat/i-cexten.ads (CFloat_128): New type.
+
+2019-03-22  Dmitriy Anisimkov  <anisimko@adacore.com>
+
+	PR ada/89583
+	* libgnat/g-socket.adb (Bind_Socket, Connect_Socket,
+	Send_Socket): Fix the computation of structure lengths passed to
+	low level routines.
+	(Is_IPv6_Address): Fix the number of expected colons.
+
+2019-03-11  Martin Liska  <mliska@suse.cz>
+
+	* gcc-interface/misc.c (gnat_post_options): Wrap option name in string
+	format message and fix GNU coding style.
+
+2019-02-08  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/trans.c (gnat_to_gnu) <N_Aggregate>: Minor tweak.
+	* gcc-interface/utils.c (convert): Do not pad when doing an unchecked
+	conversion here.  Use TREE_CONSTANT throughout the function.
+	(unchecked_convert): Also pad if the source is a CONSTRUCTOR and the
+	destination is a more aligned array type or a larger aggregate type,
+	but not between original and packable versions of a type.
+
+2019-02-08  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/utils.c (max_size) <tcc_unary>: Be prepared for an
+	operand with VOID_TYPE.
+
+2019-02-08  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/trans.c (elaborate_all_entities): Do not elaborate the
+	entities of a package renaming another one.
+
+2019-02-08  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/trans.c (Regular_Loop_to_gnu): Replace tests on
+	individual flag_unswitch_loops and flag_tree_loop_vectorize switches
+	with test on global optimize switch.
+	(Raise_Error_to_gnu): Likewise.
+
+2019-02-07  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* libgnarl/s-linux__sparc.ads (ETIMEDOUT): Set to correct value.
+
+2019-02-06  Arnaud Charlet  <charlet@adacore.com>
+
+	* libgnarl/s-linux__x32.ads: Resync list of signals with s-linux.ads
+
+2019-01-27  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* repinfo.adb (List_Component_Layout): Remove superfluous space for
+	zero-sized field.
+	* gcc-interface/ada-tree.h (TYPE_IS_EXTRA_SUBTYPE_P): New macro.
+	* gcc-interface/gigi.h (create_extra_subtype): Declare.
+	* gcc-interface/decl.c (TYPE_ARRAY_SIZE_LIMIT): Likewise.
+	(update_n_elem): New function.
+	(gnat_to_gnu_entity): Use create_extra_subtype to create extra subtypes
+	instead of doing it manually.
+	<E_Array_Type>: Use update_n_elem to compute the maximum size.  Use the
+ 	index type instead of base type for the bounds. Set TYPE_ARRAY_MAX_SIZE
+	of the array to the maximum size.
+	<E_Array_Subtype>: Create an extra subtype using the index type of the
+	base array type for self-referential bounds.  Use update_n_elem to
+	compute the maximum size.  Set TYPE_ARRAY_MAX_SIZE of the array to the
+	maximum size.
+	(gnat_to_gnu_field): Clear DECL_NONADDRESSABLE_P on discriminants.
+	* gcc-interface/misc.c (gnat_get_alias_set): Return the alias set of
+	the base type for an extra subtype.
+	(gnat_type_max_size): Remove obsolete code.
+	* gcc-interface/trans.c (Attribute_to_gnu): Minor tweak.
+	(can_be_lower_p): Deal with pathological types.
+	* gcc-interface/utils.c (create_extra_subtype): New function.
+	(create_field_decl): Minor tweak.
+	(max_size) <tcc_reference>: Compute a better value by using the extra
+ 	subtypes on the self-referential bounds.
+	<tcc_binary>: Rewrite.  Deal with "negative value" in unsigned types.
+	<tcc_expression>: Likewise.
+	* gcc-interface/utils2.c (compare_arrays): Retrieve the original bounds
+	of the arrays upfront.  Swap only if the second length is not constant.
+	Use comparisons on the original bounds consistently for the null tests.
+	(build_binary_op): Use TYPE_IS_EXTRA_SUBTYPE_P macro.
+	(build_allocator): Minor tweak.
+
+2019-01-27  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/decl.c (array_type_has_nonaliased_component): Return
+	the same value for every dimension of a multidimensional array type.
+
+2019-01-26  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/trans.c (Regular_Loop_to_gnu): Use the SLOC of the
+	iteration scheme, if present, throughout the translation.
+
+2019-01-26  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/trans.c (gnat_to_gnu) <N_Assignment_Statement>: Use
+	DECL_SIZE_UNIT instead of TYPE_SIZE_UNIT for the size to be assigned
+	by a call to memset if the LHS is a DECL.
+
+2019-01-26  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/trans.c (struct loop_info_d): Remove artificial field.
+	(Loop_Statement_to_gnu): Do not set it.
+
+2019-01-26  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/trans.c (Iterate_Acc_Clause_Arg): Fix formatting.
+	(Acc_gnat_to_gnu): Likewise.
+	(Acc_Data_to_gnu): Likewise.
+	(Acc_Var_to_gnu): Likewise.
+	(Acc_Reduc_to_gnu): Likewise.
+	(Acc_Size_List_to_gnu): Likewise.
+	(Pragma_to_gnu) <Pragma_Acc_Loop>: Likewise.
+	<Pragma_Acc_Data>): Likewise.
+	(find_loop_for): Remove default value for parameters.
+	* gcc-interface/trans.c (gnat_to_gnu) <N_Op_And>: Merge into...
+	<N_Op_Eq>): ...this.
+
+2019-01-26  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/decl.c (annotate_value) <INTEGER_CST>: Use test on
+	the sign bit instead of on the sign of the value.
+	<PLUS_EXPR>: Turn addition of negative constant into subtraction.
+	<MULT_EXPR>: Add test for degenerate case.
+	<BIT_AND_EXPR>: Simplify.
+
+2019-01-18  Sebastian Huber  <sebastian.huber@embedded-brains.de>
+
+	* s-oscons-tmplt.c (AF_INET6): Do not undefine for RTEMS.
+
+2019-01-09  Sandra Loosemore  <sandra@codesourcery.com>
+
+	PR other/16615
+	* exp_ch11.adb: Change "can not" to "cannot".
+	* sem_ch4.adb: Likewise.
+
+2019-01-09  Sandra Loosemore  <sandra@codesourcery.com>
+
+	PR other/16615
+	* exp_ch9.adb: Mechanically replace "can not" with "cannot".
+	* libgnat/s-regpat.ads: Likewise.
+	* par-ch4.adb: Likewise.
+	* set_targ.adb: Likewise.
+	* types.ads: Likewise.
+
+2019-01-08  Justin Squirek  <squirek@adacore.com>
+
+	Revert:
+	2018-07-31  Justin Squirek  <squirek@adacore.com>
+
+	* lib-writ.adb (Write_With_Lines): Modfiy the generation
+	of dependencies within ali files so that source unit
+	bodies are properly listed even if said bodies are
+	missing.  Perform legacy behavior in GNATprove mode.
+	* lib-writ.ads: Modify documentation to reflect current
+	behavior.
+
+	and:
+	2018-09-26  Justin Squirek  <squirek@adacore.com>
+
+	* lib-writ.adb, lib-writ.ads (Write_With_Lines): Add
+	documentation and an extra conditional check for RCI
+	units so that generated ali files will list the spec
+	only instead of a body when a body is not found.
+
+2019-01-04  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gnatvsn.ads: Bump copyright year.
+
+2019-01-01  Jakub Jelinek  <jakub@redhat.com>
+
+	Update copyright years.
+
+ 	* gnat_ugn.texi: Bump @copying's copyright year.
+ 	* gnat_rm.texi: Likewise.
+
+Copyright (C) 2019 Free Software Foundation, Inc.
+
+Copying and distribution of this file, with or without modification,
+are permitted in any medium without royalty provided the copyright
+notice and this notice are preserved.