--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/gimple.h.orig	Mon Feb 15 00:54:17 2010 +0900
@@ -0,0 +1,4793 @@
+/* Gimple IR definitions.
+
+   Copyright 2007, 2008, 2009 Free Software Foundation, Inc.
+   Contributed by Aldy Hernandez <aldyh@redhat.com>
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#ifndef GCC_GIMPLE_H
+#define GCC_GIMPLE_H
+
+#include "pointer-set.h"
+#include "vec.h"
+#include "ggc.h"
+#include "tm.h"
+#include "hard-reg-set.h"
+#include "basic-block.h"
+#include "tree-ssa-operands.h"
+
+DEF_VEC_P(gimple);
+DEF_VEC_ALLOC_P(gimple,heap);
+DEF_VEC_ALLOC_P(gimple,gc);
+
+typedef gimple *gimple_p;
+DEF_VEC_P(gimple_p);
+DEF_VEC_ALLOC_P(gimple_p,heap);
+
+DEF_VEC_P(gimple_seq);
+DEF_VEC_ALLOC_P(gimple_seq,gc);
+DEF_VEC_ALLOC_P(gimple_seq,heap);
+
+/* For each block, the PHI nodes that need to be rewritten are stored into
+   these vectors.  */
+typedef VEC(gimple, heap) *gimple_vec;
+DEF_VEC_P (gimple_vec);
+DEF_VEC_ALLOC_P (gimple_vec, heap);
+
+enum gimple_code {
+#define DEFGSCODE(SYM, STRING, STRUCT)	SYM,
+#include "gimple.def"
+#undef DEFGSCODE
+    LAST_AND_UNUSED_GIMPLE_CODE
+};
+
+extern const char *const gimple_code_name[];
+extern const unsigned char gimple_rhs_class_table[];
+
+/* Error out if a gimple tuple is addressed incorrectly.  */
+#if defined ENABLE_GIMPLE_CHECKING
+extern void gimple_check_failed (const_gimple, const char *, int,          \
+                                 const char *, enum gimple_code,           \
+				 enum tree_code) ATTRIBUTE_NORETURN;
+
+#define GIMPLE_CHECK(GS, CODE)						\
+  do {									\
+    const_gimple __gs = (GS);						\
+    if (gimple_code (__gs) != (CODE))					\
+      gimple_check_failed (__gs, __FILE__, __LINE__, __FUNCTION__,	\
+	  		   (CODE), ERROR_MARK);				\
+  } while (0)
+#else  /* not ENABLE_GIMPLE_CHECKING  */
+#define GIMPLE_CHECK(GS, CODE)			(void)0
+#endif
+
+/* Class of GIMPLE expressions suitable for the RHS of assignments.  See
+   get_gimple_rhs_class.  */
+enum gimple_rhs_class
+{
+  GIMPLE_INVALID_RHS,	/* The expression cannot be used on the RHS.  */
+  GIMPLE_BINARY_RHS,	/* The expression is a binary operation.  */
+  GIMPLE_UNARY_RHS,	/* The expression is a unary operation.  */
+  GIMPLE_SINGLE_RHS	/* The expression is a single object (an SSA
+			   name, a _DECL, a _REF, etc.  */
+};
+
+/* Specific flags for individual GIMPLE statements.  These flags are
+   always stored in gimple_statement_base.subcode and they may only be
+   defined for statement codes that do not use sub-codes.
+
+   Values for the masks can overlap as long as the overlapping values
+   are never used in the same statement class.
+
+   The maximum mask value that can be defined is 1 << 15 (i.e., each
+   statement code can hold up to 16 bitflags).
+
+   Keep this list sorted.  */
+enum gf_mask {
+    GF_ASM_INPUT		= 1 << 0,
+    GF_ASM_VOLATILE		= 1 << 1,
+    GF_CALL_CANNOT_INLINE	= 1 << 0,
+    GF_CALL_FROM_THUNK		= 1 << 1,
+    GF_CALL_RETURN_SLOT_OPT	= 1 << 2,
+    GF_CALL_TAILCALL		= 1 << 3,
+    GF_CALL_VA_ARG_PACK		= 1 << 4,
+#ifndef noCbC
+	GF_CALL_CBC_GOTO		= 1 << 5,
+#endif
+    GF_OMP_PARALLEL_COMBINED	= 1 << 0,
+
+    /* True on an GIMPLE_OMP_RETURN statement if the return does not require
+       a thread synchronization via some sort of barrier.  The exact barrier
+       that would otherwise be emitted is dependent on the OMP statement with
+       which this return is associated.  */
+    GF_OMP_RETURN_NOWAIT	= 1 << 0,
+
+    GF_OMP_SECTION_LAST		= 1 << 0,
+    GF_PREDICT_TAKEN		= 1 << 15
+};
+
+/* Currently, there's only one type of gimple debug stmt.  Others are
+   envisioned, for example, to enable the generation of is_stmt notes
+   in line number information, to mark sequence points, etc.  This
+   subcode is to be used to tell them apart.  */
+enum gimple_debug_subcode {
+  GIMPLE_DEBUG_BIND = 0
+};
+
+/* Masks for selecting a pass local flag (PLF) to work on.  These
+   masks are used by gimple_set_plf and gimple_plf.  */
+enum plf_mask {
+    GF_PLF_1	= 1 << 0,
+    GF_PLF_2	= 1 << 1
+};
+
+/* A node in a gimple_seq_d.  */
+struct GTY((chain_next ("%h.next"), chain_prev ("%h.prev"))) gimple_seq_node_d {
+  gimple stmt;
+  struct gimple_seq_node_d *prev;
+  struct gimple_seq_node_d *next;
+};
+
+/* A double-linked sequence of gimple statements.  */
+struct GTY ((chain_next ("%h.next_free"))) gimple_seq_d {
+  /* First and last statements in the sequence.  */
+  gimple_seq_node first;
+  gimple_seq_node last;
+
+  /* Sequences are created/destroyed frequently.  To minimize
+     allocation activity, deallocated sequences are kept in a pool of
+     available sequences.  This is the pointer to the next free
+     sequence in the pool.  */
+  gimple_seq next_free;
+};
+
+
+/* Return the first node in GIMPLE sequence S.  */
+
+static inline gimple_seq_node
+gimple_seq_first (const_gimple_seq s)
+{
+  return s ? s->first : NULL;
+}
+
+
+/* Return the first statement in GIMPLE sequence S.  */
+
+static inline gimple
+gimple_seq_first_stmt (const_gimple_seq s)
+{
+  gimple_seq_node n = gimple_seq_first (s);
+  return (n) ? n->stmt : NULL;
+}
+
+
+/* Return the last node in GIMPLE sequence S.  */
+
+static inline gimple_seq_node
+gimple_seq_last (const_gimple_seq s)
+{
+  return s ? s->last : NULL;
+}
+
+
+/* Return the last statement in GIMPLE sequence S.  */
+
+static inline gimple
+gimple_seq_last_stmt (const_gimple_seq s)
+{
+  gimple_seq_node n = gimple_seq_last (s);
+  return (n) ? n->stmt : NULL;
+}
+
+
+/* Set the last node in GIMPLE sequence S to LAST.  */
+
+static inline void
+gimple_seq_set_last (gimple_seq s, gimple_seq_node last)
+{
+  s->last = last;
+}
+
+
+/* Set the first node in GIMPLE sequence S to FIRST.  */
+
+static inline void
+gimple_seq_set_first (gimple_seq s, gimple_seq_node first)
+{
+  s->first = first;
+}
+
+
+/* Return true if GIMPLE sequence S is empty.  */
+
+static inline bool
+gimple_seq_empty_p (const_gimple_seq s)
+{
+  return s == NULL || s->first == NULL;
+}
+
+
+void gimple_seq_add_stmt (gimple_seq *, gimple);
+
+/* Allocate a new sequence and initialize its first element with STMT.  */
+
+static inline gimple_seq
+gimple_seq_alloc_with_stmt (gimple stmt)
+{
+  gimple_seq seq = NULL;
+  gimple_seq_add_stmt (&seq, stmt);
+  return seq;
+}
+
+
+/* Returns the sequence of statements in BB.  */
+
+static inline gimple_seq
+bb_seq (const_basic_block bb)
+{
+  return (!(bb->flags & BB_RTL) && bb->il.gimple) ? bb->il.gimple->seq : NULL;
+}
+
+
+/* Sets the sequence of statements in BB to SEQ.  */
+
+static inline void
+set_bb_seq (basic_block bb, gimple_seq seq)
+{
+  gcc_assert (!(bb->flags & BB_RTL));
+  bb->il.gimple->seq = seq;
+}
+
+/* Iterator object for GIMPLE statement sequences.  */
+
+typedef struct
+{
+  /* Sequence node holding the current statement.  */
+  gimple_seq_node ptr;
+
+  /* Sequence and basic block holding the statement.  These fields
+     are necessary to handle edge cases such as when statement is
+     added to an empty basic block or when the last statement of a
+     block/sequence is removed.  */
+  gimple_seq seq;
+  basic_block bb;
+} gimple_stmt_iterator;
+
+
+/* Data structure definitions for GIMPLE tuples.  NOTE: word markers
+   are for 64 bit hosts.  */
+
+struct GTY(()) gimple_statement_base {
+  /* [ WORD 1 ]
+     Main identifying code for a tuple.  */
+  ENUM_BITFIELD(gimple_code) code : 8;
+
+  /* Nonzero if a warning should not be emitted on this tuple.  */
+  unsigned int no_warning	: 1;
+
+  /* Nonzero if this tuple has been visited.  Passes are responsible
+     for clearing this bit before using it.  */
+  unsigned int visited		: 1;
+
+  /* Nonzero if this tuple represents a non-temporal move.  */
+  unsigned int nontemporal_move	: 1;
+
+  /* Pass local flags.  These flags are free for any pass to use as
+     they see fit.  Passes should not assume that these flags contain
+     any useful value when the pass starts.  Any initial state that
+     the pass requires should be set on entry to the pass.  See
+     gimple_set_plf and gimple_plf for usage.  */
+  unsigned int plf		: 2;
+
+  /* Nonzero if this statement has been modified and needs to have its
+     operands rescanned.  */
+  unsigned modified 		: 1;
+
+  /* Nonzero if this statement contains volatile operands.  */
+  unsigned has_volatile_ops 	: 1;
+
+  /* Padding to get subcode to 16 bit alignment.  */
+  unsigned pad			: 1;
+
+  /* The SUBCODE field can be used for tuple-specific flags for tuples
+     that do not require subcodes.  Note that SUBCODE should be at
+     least as wide as tree codes, as several tuples store tree codes
+     in there.  */
+  unsigned int subcode		: 16;
+
+  /* UID of this statement.  This is used by passes that want to
+     assign IDs to statements.  It must be assigned and used by each
+     pass.  By default it should be assumed to contain garbage.  */
+  unsigned uid;
+
+  /* [ WORD 2 ]
+     Locus information for debug info.  */
+  location_t location;
+
+  /* Number of operands in this tuple.  */
+  unsigned num_ops;
+
+  /* [ WORD 3 ]
+     Basic block holding this statement.  */
+  struct basic_block_def *bb;
+
+  /* [ WORD 4 ]
+     Lexical block holding this statement.  */
+  tree block;
+};
+
+
+/* Base structure for tuples with operands.  */
+
+struct GTY(()) gimple_statement_with_ops_base
+{
+  /* [ WORD 1-4 ]  */
+  struct gimple_statement_base gsbase;
+
+  /* [ WORD 5-6 ]
+     SSA operand vectors.  NOTE: It should be possible to
+     amalgamate these vectors with the operand vector OP.  However,
+     the SSA operand vectors are organized differently and contain
+     more information (like immediate use chaining).  */
+  struct def_optype_d GTY((skip (""))) *def_ops;
+  struct use_optype_d GTY((skip (""))) *use_ops;
+};
+
+
+/* Statements that take register operands.  */
+
+struct GTY(()) gimple_statement_with_ops
+{
+  /* [ WORD 1-6 ]  */
+  struct gimple_statement_with_ops_base opbase;
+
+  /* [ WORD 7 ]
+     Operand vector.  NOTE!  This must always be the last field
+     of this structure.  In particular, this means that this
+     structure cannot be embedded inside another one.  */
+  tree GTY((length ("%h.opbase.gsbase.num_ops"))) op[1];
+};
+
+
+/* Base for statements that take both memory and register operands.  */
+
+struct GTY(()) gimple_statement_with_memory_ops_base
+{
+  /* [ WORD 1-6 ]  */
+  struct gimple_statement_with_ops_base opbase;
+
+  /* [ WORD 7-8 ]
+     Virtual operands for this statement.  The GC will pick them
+     up via the ssa_names array.  */
+  tree GTY((skip (""))) vdef;
+  tree GTY((skip (""))) vuse;
+};
+
+
+/* Statements that take both memory and register operands.  */
+
+struct GTY(()) gimple_statement_with_memory_ops
+{
+  /* [ WORD 1-8 ]  */
+  struct gimple_statement_with_memory_ops_base membase;
+
+  /* [ WORD 9 ]
+     Operand vector.  NOTE!  This must always be the last field
+     of this structure.  In particular, this means that this
+     structure cannot be embedded inside another one.  */
+  tree GTY((length ("%h.membase.opbase.gsbase.num_ops"))) op[1];
+};
+
+
+/* OpenMP statements (#pragma omp).  */
+
+struct GTY(()) gimple_statement_omp {
+  /* [ WORD 1-4 ]  */
+  struct gimple_statement_base gsbase;
+
+  /* [ WORD 5 ]  */
+  gimple_seq body;
+};
+
+
+/* GIMPLE_BIND */
+
+struct GTY(()) gimple_statement_bind {
+  /* [ WORD 1-4 ]  */
+  struct gimple_statement_base gsbase;
+
+  /* [ WORD 5 ]
+     Variables declared in this scope.  */
+  tree vars;
+
+  /* [ WORD 6 ]
+     This is different than the BLOCK field in gimple_statement_base,
+     which is analogous to TREE_BLOCK (i.e., the lexical block holding
+     this statement).  This field is the equivalent of BIND_EXPR_BLOCK
+     in tree land (i.e., the lexical scope defined by this bind).  See
+     gimple-low.c.  */
+  tree block;
+
+  /* [ WORD 7 ]  */
+  gimple_seq body;
+};
+
+
+/* GIMPLE_CATCH */
+
+struct GTY(()) gimple_statement_catch {
+  /* [ WORD 1-4 ]  */
+  struct gimple_statement_base gsbase;
+
+  /* [ WORD 5 ]  */
+  tree types;
+
+  /* [ WORD 6 ]  */
+  gimple_seq handler;
+};
+
+
+/* GIMPLE_EH_FILTER */
+
+struct GTY(()) gimple_statement_eh_filter {
+  /* [ WORD 1-4 ]  */
+  struct gimple_statement_base gsbase;
+
+  /* [ WORD 5 ]
+     Filter types.  */
+  tree types;
+
+  /* [ WORD 6 ]
+     Failure actions.  */
+  gimple_seq failure;
+};
+
+
+/* GIMPLE_EH_MUST_NOT_THROW */
+
+struct GTY(()) gimple_statement_eh_mnt {
+  /* [ WORD 1-4 ]  */
+  struct gimple_statement_base gsbase;
+
+  /* [ WORD 5 ] Abort function decl.  */
+  tree fndecl;
+};
+
+/* GIMPLE_PHI */
+
+struct GTY(()) gimple_statement_phi {
+  /* [ WORD 1-4 ]  */
+  struct gimple_statement_base gsbase;
+
+  /* [ WORD 5 ]  */
+  unsigned capacity;
+  unsigned nargs;
+
+  /* [ WORD 6 ]  */
+  tree result;
+
+  /* [ WORD 7 ]  */
+  struct phi_arg_d GTY ((length ("%h.nargs"))) args[1];
+};
+
+
+/* GIMPLE_RESX, GIMPLE_EH_DISPATCH */
+
+struct GTY(()) gimple_statement_eh_ctrl
+{
+  /* [ WORD 1-4 ]  */
+  struct gimple_statement_base gsbase;
+
+  /* [ WORD 5 ]
+     Exception region number.  */
+  int region;
+};
+
+
+/* GIMPLE_TRY */
+
+struct GTY(()) gimple_statement_try {
+  /* [ WORD 1-4 ]  */
+  struct gimple_statement_base gsbase;
+
+  /* [ WORD 5 ]
+     Expression to evaluate.  */
+  gimple_seq eval;
+
+  /* [ WORD 6 ]
+     Cleanup expression.  */
+  gimple_seq cleanup;
+};
+
+/* Kind of GIMPLE_TRY statements.  */
+enum gimple_try_flags
+{
+  /* A try/catch.  */
+  GIMPLE_TRY_CATCH = 1 << 0,
+
+  /* A try/finally.  */
+  GIMPLE_TRY_FINALLY = 1 << 1,
+  GIMPLE_TRY_KIND = GIMPLE_TRY_CATCH | GIMPLE_TRY_FINALLY,
+
+  /* Analogous to TRY_CATCH_IS_CLEANUP.  */
+  GIMPLE_TRY_CATCH_IS_CLEANUP = 1 << 2
+};
+
+/* GIMPLE_WITH_CLEANUP_EXPR */
+
+struct GTY(()) gimple_statement_wce {
+  /* [ WORD 1-4 ]  */
+  struct gimple_statement_base gsbase;
+
+  /* Subcode: CLEANUP_EH_ONLY.  True if the cleanup should only be
+	      executed if an exception is thrown, not on normal exit of its
+	      scope.  This flag is analogous to the CLEANUP_EH_ONLY flag
+	      in TARGET_EXPRs.  */
+
+  /* [ WORD 5 ]
+     Cleanup expression.  */
+  gimple_seq cleanup;
+};
+
+
+/* GIMPLE_ASM  */
+
+struct GTY(()) gimple_statement_asm
+{
+  /* [ WORD 1-8 ]  */
+  struct gimple_statement_with_memory_ops_base membase;
+
+  /* [ WORD 9 ]
+     __asm__ statement.  */
+  const char *string;
+
+  /* [ WORD 10 ]
+       Number of inputs, outputs, clobbers, labels.  */
+  unsigned char ni;
+  unsigned char no;
+  unsigned char nc;
+  unsigned char nl;
+
+  /* [ WORD 11 ]
+     Operand vector.  NOTE!  This must always be the last field
+     of this structure.  In particular, this means that this
+     structure cannot be embedded inside another one.  */
+  tree GTY((length ("%h.membase.opbase.gsbase.num_ops"))) op[1];
+};
+
+/* GIMPLE_OMP_CRITICAL */
+
+struct GTY(()) gimple_statement_omp_critical {
+  /* [ WORD 1-5 ]  */
+  struct gimple_statement_omp omp;
+
+  /* [ WORD 6 ]
+     Critical section name.  */
+  tree name;
+};
+
+
+struct GTY(()) gimple_omp_for_iter {
+  /* Condition code.  */
+  enum tree_code cond;
+
+  /* Index variable.  */
+  tree index;
+
+  /* Initial value.  */
+  tree initial;
+
+  /* Final value.  */
+  tree final;
+
+  /* Increment.  */
+  tree incr;
+};
+
+/* GIMPLE_OMP_FOR */
+
+struct GTY(()) gimple_statement_omp_for {
+  /* [ WORD 1-5 ]  */
+  struct gimple_statement_omp omp;
+
+  /* [ WORD 6 ]  */
+  tree clauses;
+
+  /* [ WORD 7 ]
+     Number of elements in iter array.  */
+  size_t collapse;
+
+  /* [ WORD 8 ]  */
+  struct gimple_omp_for_iter * GTY((length ("%h.collapse"))) iter;
+
+  /* [ WORD 9 ]
+     Pre-body evaluated before the loop body begins.  */
+  gimple_seq pre_body;
+};
+
+
+/* GIMPLE_OMP_PARALLEL */
+
+struct GTY(()) gimple_statement_omp_parallel {
+  /* [ WORD 1-5 ]  */
+  struct gimple_statement_omp omp;
+
+  /* [ WORD 6 ]
+     Clauses.  */
+  tree clauses;
+
+  /* [ WORD 7 ]
+     Child function holding the body of the parallel region.  */
+  tree child_fn;
+
+  /* [ WORD 8 ]
+     Shared data argument.  */
+  tree data_arg;
+};
+
+
+/* GIMPLE_OMP_TASK */
+
+struct GTY(()) gimple_statement_omp_task {
+  /* [ WORD 1-8 ]  */
+  struct gimple_statement_omp_parallel par;
+
+  /* [ WORD 9 ]
+     Child function holding firstprivate initialization if needed.  */
+  tree copy_fn;
+
+  /* [ WORD 10-11 ]
+     Size and alignment in bytes of the argument data block.  */
+  tree arg_size;
+  tree arg_align;
+};
+
+
+/* GIMPLE_OMP_SECTION */
+/* Uses struct gimple_statement_omp.  */
+
+
+/* GIMPLE_OMP_SECTIONS */
+
+struct GTY(()) gimple_statement_omp_sections {
+  /* [ WORD 1-5 ]  */
+  struct gimple_statement_omp omp;
+
+  /* [ WORD 6 ]  */
+  tree clauses;
+
+  /* [ WORD 7 ]
+     The control variable used for deciding which of the sections to
+     execute.  */
+  tree control;
+};
+
+/* GIMPLE_OMP_CONTINUE.
+
+   Note: This does not inherit from gimple_statement_omp, because we
+         do not need the body field.  */
+
+struct GTY(()) gimple_statement_omp_continue {
+  /* [ WORD 1-4 ]  */
+  struct gimple_statement_base gsbase;
+
+  /* [ WORD 5 ]  */
+  tree control_def;
+
+  /* [ WORD 6 ]  */
+  tree control_use;
+};
+
+/* GIMPLE_OMP_SINGLE */
+
+struct GTY(()) gimple_statement_omp_single {
+  /* [ WORD 1-5 ]  */
+  struct gimple_statement_omp omp;
+
+  /* [ WORD 6 ]  */
+  tree clauses;
+};
+
+
+/* GIMPLE_OMP_ATOMIC_LOAD.
+   Note: This is based on gimple_statement_base, not g_s_omp, because g_s_omp
+   contains a sequence, which we don't need here.  */
+
+struct GTY(()) gimple_statement_omp_atomic_load {
+  /* [ WORD 1-4 ]  */
+  struct gimple_statement_base gsbase;
+
+  /* [ WORD 5-6 ]  */
+  tree rhs, lhs;
+};
+
+/* GIMPLE_OMP_ATOMIC_STORE.
+   See note on GIMPLE_OMP_ATOMIC_LOAD.  */
+
+struct GTY(()) gimple_statement_omp_atomic_store {
+  /* [ WORD 1-4 ]  */
+  struct gimple_statement_base gsbase;
+
+  /* [ WORD 5 ]  */
+  tree val;
+};
+
+#define DEFGSSTRUCT(SYM, STRUCT, HAS_TREE_OP)	SYM,
+enum gimple_statement_structure_enum {
+#include "gsstruct.def"
+    LAST_GSS_ENUM
+};
+#undef DEFGSSTRUCT
+
+
+/* Define the overall contents of a gimple tuple.  It may be any of the
+   structures declared above for various types of tuples.  */
+
+union GTY ((desc ("gimple_statement_structure (&%h)"))) gimple_statement_d {
+  struct gimple_statement_base GTY ((tag ("GSS_BASE"))) gsbase;
+  struct gimple_statement_with_ops GTY ((tag ("GSS_WITH_OPS"))) gsops;
+  struct gimple_statement_with_memory_ops_base GTY ((tag ("GSS_WITH_MEM_OPS_BASE"))) gsmembase;
+  struct gimple_statement_with_memory_ops GTY ((tag ("GSS_WITH_MEM_OPS"))) gsmem;
+  struct gimple_statement_omp GTY ((tag ("GSS_OMP"))) omp;
+  struct gimple_statement_bind GTY ((tag ("GSS_BIND"))) gimple_bind;
+  struct gimple_statement_catch GTY ((tag ("GSS_CATCH"))) gimple_catch;
+  struct gimple_statement_eh_filter GTY ((tag ("GSS_EH_FILTER"))) gimple_eh_filter;
+  struct gimple_statement_eh_mnt GTY ((tag ("GSS_EH_MNT"))) gimple_eh_mnt;
+  struct gimple_statement_phi GTY ((tag ("GSS_PHI"))) gimple_phi;
+  struct gimple_statement_eh_ctrl GTY ((tag ("GSS_EH_CTRL"))) gimple_eh_ctrl;
+  struct gimple_statement_try GTY ((tag ("GSS_TRY"))) gimple_try;
+  struct gimple_statement_wce GTY ((tag ("GSS_WCE"))) gimple_wce;
+  struct gimple_statement_asm GTY ((tag ("GSS_ASM"))) gimple_asm;
+  struct gimple_statement_omp_critical GTY ((tag ("GSS_OMP_CRITICAL"))) gimple_omp_critical;
+  struct gimple_statement_omp_for GTY ((tag ("GSS_OMP_FOR"))) gimple_omp_for;
+  struct gimple_statement_omp_parallel GTY ((tag ("GSS_OMP_PARALLEL"))) gimple_omp_parallel;
+  struct gimple_statement_omp_task GTY ((tag ("GSS_OMP_TASK"))) gimple_omp_task;
+  struct gimple_statement_omp_sections GTY ((tag ("GSS_OMP_SECTIONS"))) gimple_omp_sections;
+  struct gimple_statement_omp_single GTY ((tag ("GSS_OMP_SINGLE"))) gimple_omp_single;
+  struct gimple_statement_omp_continue GTY ((tag ("GSS_OMP_CONTINUE"))) gimple_omp_continue;
+  struct gimple_statement_omp_atomic_load GTY ((tag ("GSS_OMP_ATOMIC_LOAD"))) gimple_omp_atomic_load;
+  struct gimple_statement_omp_atomic_store GTY ((tag ("GSS_OMP_ATOMIC_STORE"))) gimple_omp_atomic_store;
+};
+
+/* In gimple.c.  */
+
+/* Offset in bytes to the location of the operand vector.
+   Zero if there is no operand vector for this tuple structure.  */
+extern size_t const gimple_ops_offset_[];
+
+/* Map GIMPLE codes to GSS codes.  */
+extern enum gimple_statement_structure_enum const gss_for_code_[];
+
+/* This variable holds the currently expanded gimple statement for purposes
+   of comminucating the profile info to the builtin expanders.  */
+extern gimple currently_expanding_gimple_stmt;
+
+gimple gimple_build_return (tree);
+
+gimple gimple_build_assign_stat (tree, tree MEM_STAT_DECL);
+#define gimple_build_assign(l,r) gimple_build_assign_stat (l, r MEM_STAT_INFO)
+
+void extract_ops_from_tree (tree, enum tree_code *, tree *, tree *);
+
+gimple gimple_build_assign_with_ops_stat (enum tree_code, tree, tree,
+					  tree MEM_STAT_DECL);
+#define gimple_build_assign_with_ops(c,o1,o2,o3) \
+  gimple_build_assign_with_ops_stat (c, o1, o2, o3 MEM_STAT_INFO)
+
+gimple gimple_build_debug_bind_stat (tree, tree, gimple MEM_STAT_DECL);
+#define gimple_build_debug_bind(var,val,stmt)			\
+  gimple_build_debug_bind_stat ((var), (val), (stmt) MEM_STAT_INFO)
+
+gimple gimple_build_call_vec (tree, VEC(tree, heap) *);
+gimple gimple_build_call (tree, unsigned, ...);
+gimple gimple_build_call_from_tree (tree);
+gimple gimplify_assign (tree, tree, gimple_seq *);
+gimple gimple_build_cond (enum tree_code, tree, tree, tree, tree);
+gimple gimple_build_label (tree label);
+gimple gimple_build_goto (tree dest);
+gimple gimple_build_nop (void);
+gimple gimple_build_bind (tree, gimple_seq, tree);
+gimple gimple_build_asm_vec (const char *, VEC(tree,gc) *, VEC(tree,gc) *,
+                             VEC(tree,gc) *, VEC(tree,gc) *);
+gimple gimple_build_catch (tree, gimple_seq);
+gimple gimple_build_eh_filter (tree, gimple_seq);
+gimple gimple_build_eh_must_not_throw (tree);
+gimple gimple_build_try (gimple_seq, gimple_seq, enum gimple_try_flags);
+gimple gimple_build_wce (gimple_seq);
+gimple gimple_build_resx (int);
+gimple gimple_build_eh_dispatch (int);
+gimple gimple_build_switch_nlabels (unsigned, tree, tree);
+gimple gimple_build_switch (unsigned, tree, tree, ...);
+gimple gimple_build_switch_vec (tree, tree, VEC(tree,heap) *);
+gimple gimple_build_omp_parallel (gimple_seq, tree, tree, tree);
+gimple gimple_build_omp_task (gimple_seq, tree, tree, tree, tree, tree, tree);
+gimple gimple_build_omp_for (gimple_seq, tree, size_t, gimple_seq);
+gimple gimple_build_omp_critical (gimple_seq, tree);
+gimple gimple_build_omp_section (gimple_seq);
+gimple gimple_build_omp_continue (tree, tree);
+gimple gimple_build_omp_master (gimple_seq);
+gimple gimple_build_omp_return (bool);
+gimple gimple_build_omp_ordered (gimple_seq);
+gimple gimple_build_omp_sections (gimple_seq, tree);
+gimple gimple_build_omp_sections_switch (void);
+gimple gimple_build_omp_single (gimple_seq, tree);
+gimple gimple_build_cdt (tree, tree);
+gimple gimple_build_omp_atomic_load (tree, tree);
+gimple gimple_build_omp_atomic_store (tree);
+gimple gimple_build_predict (enum br_predictor, enum prediction);
+enum gimple_statement_structure_enum gss_for_assign (enum tree_code);
+void sort_case_labels (VEC(tree,heap) *);
+void gimple_set_body (tree, gimple_seq);
+gimple_seq gimple_body (tree);
+bool gimple_has_body_p (tree);
+gimple_seq gimple_seq_alloc (void);
+void gimple_seq_free (gimple_seq);
+void gimple_seq_add_seq (gimple_seq *, gimple_seq);
+gimple_seq gimple_seq_copy (gimple_seq);
+int gimple_call_flags (const_gimple);
+bool gimple_assign_copy_p (gimple);
+bool gimple_assign_ssa_name_copy_p (gimple);
+bool gimple_assign_single_p (gimple);
+bool gimple_assign_unary_nop_p (gimple);
+void gimple_set_bb (gimple, struct basic_block_def *);
+tree gimple_fold (const_gimple);
+void gimple_assign_set_rhs_from_tree (gimple_stmt_iterator *, tree);
+void gimple_assign_set_rhs_with_ops (gimple_stmt_iterator *, enum tree_code,
+				     tree, tree);
+tree gimple_get_lhs (const_gimple);
+void gimple_set_lhs (gimple, tree);
+void gimple_replace_lhs (gimple, tree);
+gimple gimple_copy (gimple);
+bool is_gimple_operand (const_tree);
+void gimple_set_modified (gimple, bool);
+void gimple_cond_get_ops_from_tree (tree, enum tree_code *, tree *, tree *);
+gimple gimple_build_cond_from_tree (tree, tree, tree);
+void gimple_cond_set_condition_from_tree (gimple, tree);
+bool gimple_has_side_effects (const_gimple);
+bool gimple_rhs_has_side_effects (const_gimple);
+bool gimple_could_trap_p (gimple);
+bool gimple_assign_rhs_could_trap_p (gimple);
+void gimple_regimplify_operands (gimple, gimple_stmt_iterator *);
+bool empty_body_p (gimple_seq);
+unsigned get_gimple_rhs_num_ops (enum tree_code);
+#define gimple_alloc(c, n) gimple_alloc_stat (c, n MEM_STAT_INFO)
+gimple gimple_alloc_stat (enum gimple_code, unsigned MEM_STAT_DECL);
+const char *gimple_decl_printable_name (tree, int);
+tree gimple_fold_obj_type_ref (tree, tree);
+
+/* Returns true iff T is a valid GIMPLE statement.  */
+extern bool is_gimple_stmt (tree);
+
+/* Returns true iff TYPE is a valid type for a scalar register variable.  */
+extern bool is_gimple_reg_type (tree);
+/* Returns true iff T is a scalar register variable.  */
+extern bool is_gimple_reg (tree);
+/* Returns true iff T is any sort of variable.  */
+extern bool is_gimple_variable (tree);
+/* Returns true iff T is any sort of symbol.  */
+extern bool is_gimple_id (tree);
+/* Returns true iff T is a variable or an INDIRECT_REF (of a variable).  */
+extern bool is_gimple_min_lval (tree);
+/* Returns true iff T is something whose address can be taken.  */
+extern bool is_gimple_addressable (tree);
+/* Returns true iff T is any valid GIMPLE lvalue.  */
+extern bool is_gimple_lvalue (tree);
+
+/* Returns true iff T is a GIMPLE address.  */
+bool is_gimple_address (const_tree);
+/* Returns true iff T is a GIMPLE invariant address.  */
+bool is_gimple_invariant_address (const_tree);
+/* Returns true iff T is a GIMPLE invariant address at interprocedural
+   level.  */
+bool is_gimple_ip_invariant_address (const_tree);
+/* Returns true iff T is a valid GIMPLE constant.  */
+bool is_gimple_constant (const_tree);
+/* Returns true iff T is a GIMPLE restricted function invariant.  */
+extern bool is_gimple_min_invariant (const_tree);
+/* Returns true iff T is a GIMPLE restricted interprecodural invariant.  */
+extern bool is_gimple_ip_invariant (const_tree);
+/* Returns true iff T is a GIMPLE rvalue.  */
+extern bool is_gimple_val (tree);
+/* Returns true iff T is a GIMPLE asm statement input.  */
+extern bool is_gimple_asm_val (tree);
+/* Returns true iff T is a valid rhs for a MODIFY_EXPR where the LHS is a
+   GIMPLE temporary, a renamed user variable, or something else,
+   respectively.  */
+extern bool is_gimple_reg_rhs (tree);
+extern bool is_gimple_mem_rhs (tree);
+
+/* Returns true iff T is a valid if-statement condition.  */
+extern bool is_gimple_condexpr (tree);
+
+/* Returns true iff T is a type conversion.  */
+extern bool is_gimple_cast (tree);
+/* Returns true iff T is a variable that does not need to live in memory.  */
+extern bool is_gimple_non_addressable (tree t);
+
+/* Returns true iff T is a valid call address expression.  */
+extern bool is_gimple_call_addr (tree);
+/* If T makes a function call, returns the CALL_EXPR operand.  */
+extern tree get_call_expr_in (tree t);
+
+extern void recalculate_side_effects (tree);
+extern bool compare_field_offset (tree, tree);
+extern tree gimple_register_type (tree);
+extern void print_gimple_types_stats (void);
+extern void free_gimple_type_tables (void);
+extern tree gimple_unsigned_type (tree);
+extern tree gimple_signed_type (tree);
+extern alias_set_type gimple_get_alias_set (tree);
+extern void count_uses_and_derefs (tree, gimple, unsigned *, unsigned *,
+				   unsigned *);
+extern bool walk_stmt_load_store_addr_ops (gimple, void *,
+					   bool (*)(gimple, tree, void *),
+					   bool (*)(gimple, tree, void *),
+					   bool (*)(gimple, tree, void *));
+extern bool walk_stmt_load_store_ops (gimple, void *,
+				      bool (*)(gimple, tree, void *),
+				      bool (*)(gimple, tree, void *));
+extern bool gimple_ior_addresses_taken (bitmap, gimple);
+
+/* In gimplify.c  */
+extern tree create_tmp_var_raw (tree, const char *);
+extern tree create_tmp_var_name (const char *);
+extern tree create_tmp_var (tree, const char *);
+extern tree get_initialized_tmp_var (tree, gimple_seq *, gimple_seq *);
+extern tree get_formal_tmp_var (tree, gimple_seq *);
+extern void declare_vars (tree, gimple, bool);
+extern void annotate_all_with_location (gimple_seq, location_t);
+
+/* Validation of GIMPLE expressions.  Note that these predicates only check
+   the basic form of the expression, they don't recurse to make sure that
+   underlying nodes are also of the right form.  */
+typedef bool (*gimple_predicate)(tree);
+
+
+/* FIXME we should deduce this from the predicate.  */
+enum fallback {
+  fb_none = 0,		/* Do not generate a temporary.  */
+
+  fb_rvalue = 1,	/* Generate an rvalue to hold the result of a
+			   gimplified expression.  */
+
+  fb_lvalue = 2,	/* Generate an lvalue to hold the result of a
+			   gimplified expression.  */
+
+  fb_mayfail = 4,	/* Gimplification may fail.  Error issued
+			   afterwards.  */
+  fb_either= fb_rvalue | fb_lvalue
+};
+
+typedef int fallback_t;
+
+enum gimplify_status {
+  GS_ERROR	= -2,	/* Something Bad Seen.  */
+  GS_UNHANDLED	= -1,	/* A langhook result for "I dunno".  */
+  GS_OK		= 0,	/* We did something, maybe more to do.  */
+  GS_ALL_DONE	= 1	/* The expression is fully gimplified.  */
+};
+
+struct gimplify_ctx
+{
+  struct gimplify_ctx *prev_context;
+
+  VEC(gimple,heap) *bind_expr_stack;
+  tree temps;
+  gimple_seq conditional_cleanups;
+  tree exit_label;
+  tree return_temp;
+
+  VEC(tree,heap) *case_labels;
+  /* The formal temporary table.  Should this be persistent?  */
+  htab_t temp_htab;
+
+  int conditions;
+  bool save_stack;
+  bool into_ssa;
+  bool allow_rhs_cond_expr;
+};
+
+extern enum gimplify_status gimplify_expr (tree *, gimple_seq *, gimple_seq *,
+					   bool (*) (tree), fallback_t);
+extern void gimplify_type_sizes (tree, gimple_seq *);
+extern void gimplify_one_sizepos (tree *, gimple_seq *);
+extern bool gimplify_stmt (tree *, gimple_seq *);
+extern gimple gimplify_body (tree *, tree, bool);
+extern void push_gimplify_context (struct gimplify_ctx *);
+extern void pop_gimplify_context (gimple);
+extern void gimplify_and_add (tree, gimple_seq *);
+
+/* Miscellaneous helpers.  */
+extern void gimple_add_tmp_var (tree);
+extern gimple gimple_current_bind_expr (void);
+extern VEC(gimple, heap) *gimple_bind_expr_stack (void);
+extern tree voidify_wrapper_expr (tree, tree);
+extern tree build_and_jump (tree *);
+extern tree alloc_stmt_list (void);
+extern void free_stmt_list (tree);
+extern tree force_labels_r (tree *, int *, void *);
+extern enum gimplify_status gimplify_va_arg_expr (tree *, gimple_seq *,
+						  gimple_seq *);
+struct gimplify_omp_ctx;
+extern void omp_firstprivatize_variable (struct gimplify_omp_ctx *, tree);
+extern tree gimple_boolify (tree);
+extern gimple_predicate rhs_predicate_for (tree);
+extern tree canonicalize_cond_expr_cond (tree);
+
+/* In omp-low.c.  */
+extern tree omp_reduction_init (tree, tree);
+
+/* In tree-nested.c.  */
+extern void lower_nested_functions (tree);
+extern void insert_field_into_struct (tree, tree);
+
+/* In gimplify.c.  */
+extern void gimplify_function_tree (tree);
+
+/* In cfgexpand.c.  */
+extern tree gimple_assign_rhs_to_tree (gimple);
+
+/* In builtins.c  */
+extern bool validate_gimple_arglist (const_gimple, ...);
+
+/* In tree-ssa.c  */
+extern bool tree_ssa_useless_type_conversion (tree);
+extern tree tree_ssa_strip_useless_type_conversions (tree);
+extern bool useless_type_conversion_p (tree, tree);
+extern bool types_compatible_p (tree, tree);
+
+/* Return the code for GIMPLE statement G.  */
+
+static inline enum gimple_code
+gimple_code (const_gimple g)
+{
+  return g->gsbase.code;
+}
+
+
+/* Return the GSS code used by a GIMPLE code.  */
+
+static inline enum gimple_statement_structure_enum
+gss_for_code (enum gimple_code code)
+{
+  gcc_assert ((unsigned int)code < LAST_AND_UNUSED_GIMPLE_CODE);
+  return gss_for_code_[code];
+}
+
+
+/* Return which GSS code is used by GS.  */
+
+static inline enum gimple_statement_structure_enum
+gimple_statement_structure (gimple gs)
+{
+  return gss_for_code (gimple_code (gs));
+}
+
+
+/* Return true if statement G has sub-statements.  This is only true for
+   High GIMPLE statements.  */
+
+static inline bool
+gimple_has_substatements (gimple g)
+{
+  switch (gimple_code (g))
+    {
+    case GIMPLE_BIND:
+    case GIMPLE_CATCH:
+    case GIMPLE_EH_FILTER:
+    case GIMPLE_TRY:
+    case GIMPLE_OMP_FOR:
+    case GIMPLE_OMP_MASTER:
+    case GIMPLE_OMP_ORDERED:
+    case GIMPLE_OMP_SECTION:
+    case GIMPLE_OMP_PARALLEL:
+    case GIMPLE_OMP_TASK:
+    case GIMPLE_OMP_SECTIONS:
+    case GIMPLE_OMP_SINGLE:
+    case GIMPLE_OMP_CRITICAL:
+    case GIMPLE_WITH_CLEANUP_EXPR:
+      return true;
+
+    default:
+      return false;
+    }
+}
+
+
+/* Return the basic block holding statement G.  */
+
+static inline struct basic_block_def *
+gimple_bb (const_gimple g)
+{
+  return g->gsbase.bb;
+}
+
+
+/* Return the lexical scope block holding statement G.  */
+
+static inline tree
+gimple_block (const_gimple g)
+{
+  return g->gsbase.block;
+}
+
+
+/* Set BLOCK to be the lexical scope block holding statement G.  */
+
+static inline void
+gimple_set_block (gimple g, tree block)
+{
+  g->gsbase.block = block;
+}
+
+
+/* Return location information for statement G.  */
+
+static inline location_t
+gimple_location (const_gimple g)
+{
+  return g->gsbase.location;
+}
+
+/* Return pointer to location information for statement G.  */
+
+static inline const location_t *
+gimple_location_ptr (const_gimple g)
+{
+  return &g->gsbase.location;
+}
+
+
+/* Set location information for statement G.  */
+
+static inline void
+gimple_set_location (gimple g, location_t location)
+{
+  g->gsbase.location = location;
+}
+
+
+/* Return true if G contains location information.  */
+
+static inline bool
+gimple_has_location (const_gimple g)
+{
+  return gimple_location (g) != UNKNOWN_LOCATION;
+}
+
+
+/* Return the file name of the location of STMT.  */
+
+static inline const char *
+gimple_filename (const_gimple stmt)
+{
+  return LOCATION_FILE (gimple_location (stmt));
+}
+
+
+/* Return the line number of the location of STMT.  */
+
+static inline int
+gimple_lineno (const_gimple stmt)
+{
+  return LOCATION_LINE (gimple_location (stmt));
+}
+
+
+/* Determine whether SEQ is a singleton. */
+
+static inline bool
+gimple_seq_singleton_p (gimple_seq seq)
+{
+  return ((gimple_seq_first (seq) != NULL)
+	  && (gimple_seq_first (seq) == gimple_seq_last (seq)));
+}
+
+/* Return true if no warnings should be emitted for statement STMT.  */
+
+static inline bool
+gimple_no_warning_p (const_gimple stmt)
+{
+  return stmt->gsbase.no_warning;
+}
+
+/* Set the no_warning flag of STMT to NO_WARNING.  */
+
+static inline void
+gimple_set_no_warning (gimple stmt, bool no_warning)
+{
+  stmt->gsbase.no_warning = (unsigned) no_warning;
+}
+
+/* Set the visited status on statement STMT to VISITED_P.  */
+
+static inline void
+gimple_set_visited (gimple stmt, bool visited_p)
+{
+  stmt->gsbase.visited = (unsigned) visited_p;
+}
+
+
+/* Return the visited status for statement STMT.  */
+
+static inline bool
+gimple_visited_p (gimple stmt)
+{
+  return stmt->gsbase.visited;
+}
+
+
+/* Set pass local flag PLF on statement STMT to VAL_P.  */
+
+static inline void
+gimple_set_plf (gimple stmt, enum plf_mask plf, bool val_p)
+{
+  if (val_p)
+    stmt->gsbase.plf |= (unsigned int) plf;
+  else
+    stmt->gsbase.plf &= ~((unsigned int) plf);
+}
+
+
+/* Return the value of pass local flag PLF on statement STMT.  */
+
+static inline unsigned int
+gimple_plf (gimple stmt, enum plf_mask plf)
+{
+  return stmt->gsbase.plf & ((unsigned int) plf);
+}
+
+
+/* Set the UID of statement.  */
+
+static inline void
+gimple_set_uid (gimple g, unsigned uid)
+{
+  g->gsbase.uid = uid;
+}
+
+
+/* Return the UID of statement.  */
+
+static inline unsigned
+gimple_uid (const_gimple g)
+{
+  return g->gsbase.uid;
+}
+
+
+/* Return true if GIMPLE statement G has register or memory operands.  */
+
+static inline bool
+gimple_has_ops (const_gimple g)
+{
+  return gimple_code (g) >= GIMPLE_COND && gimple_code (g) <= GIMPLE_RETURN;
+}
+
+
+/* Return true if GIMPLE statement G has memory operands.  */
+
+static inline bool
+gimple_has_mem_ops (const_gimple g)
+{
+  return gimple_code (g) >= GIMPLE_ASSIGN && gimple_code (g) <= GIMPLE_RETURN;
+}
+
+
+/* Return the set of DEF operands for statement G.  */
+
+static inline struct def_optype_d *
+gimple_def_ops (const_gimple g)
+{
+  if (!gimple_has_ops (g))
+    return NULL;
+  return g->gsops.opbase.def_ops;
+}
+
+
+/* Set DEF to be the set of DEF operands for statement G.  */
+
+static inline void
+gimple_set_def_ops (gimple g, struct def_optype_d *def)
+{
+  gcc_assert (gimple_has_ops (g));
+  g->gsops.opbase.def_ops = def;
+}
+
+
+/* Return the set of USE operands for statement G.  */
+
+static inline struct use_optype_d *
+gimple_use_ops (const_gimple g)
+{
+  if (!gimple_has_ops (g))
+    return NULL;
+  return g->gsops.opbase.use_ops;
+}
+
+
+/* Set USE to be the set of USE operands for statement G.  */
+
+static inline void
+gimple_set_use_ops (gimple g, struct use_optype_d *use)
+{
+  gcc_assert (gimple_has_ops (g));
+  g->gsops.opbase.use_ops = use;
+}
+
+
+/* Return the set of VUSE operand for statement G.  */
+
+static inline use_operand_p
+gimple_vuse_op (const_gimple g)
+{
+  struct use_optype_d *ops;
+  if (!gimple_has_mem_ops (g))
+    return NULL_USE_OPERAND_P;
+  ops = g->gsops.opbase.use_ops;
+  if (ops
+      && USE_OP_PTR (ops)->use == &g->gsmembase.vuse)
+    return USE_OP_PTR (ops);
+  return NULL_USE_OPERAND_P;
+}
+
+/* Return the set of VDEF operand for statement G.  */
+
+static inline def_operand_p
+gimple_vdef_op (const_gimple g)
+{
+  struct def_optype_d *ops;
+  if (!gimple_has_mem_ops (g))
+    return NULL_DEF_OPERAND_P;
+  ops = g->gsops.opbase.def_ops;
+  if (ops
+      && DEF_OP_PTR (ops) == &g->gsmembase.vdef)
+    return DEF_OP_PTR (ops);
+  return NULL_DEF_OPERAND_P;
+}
+
+
+/* Return the single VUSE operand of the statement G.  */
+
+static inline tree
+gimple_vuse (const_gimple g)
+{
+  if (!gimple_has_mem_ops (g))
+    return NULL_TREE;
+  return g->gsmembase.vuse;
+}
+
+/* Return the single VDEF operand of the statement G.  */
+
+static inline tree
+gimple_vdef (const_gimple g)
+{
+  if (!gimple_has_mem_ops (g))
+    return NULL_TREE;
+  return g->gsmembase.vdef;
+}
+
+/* Return the single VUSE operand of the statement G.  */
+
+static inline tree *
+gimple_vuse_ptr (gimple g)
+{
+  if (!gimple_has_mem_ops (g))
+    return NULL;
+  return &g->gsmembase.vuse;
+}
+
+/* Return the single VDEF operand of the statement G.  */
+
+static inline tree *
+gimple_vdef_ptr (gimple g)
+{
+  if (!gimple_has_mem_ops (g))
+    return NULL;
+  return &g->gsmembase.vdef;
+}
+
+/* Set the single VUSE operand of the statement G.  */
+
+static inline void
+gimple_set_vuse (gimple g, tree vuse)
+{
+  gcc_assert (gimple_has_mem_ops (g));
+  g->gsmembase.vuse = vuse;
+}
+
+/* Set the single VDEF operand of the statement G.  */
+
+static inline void
+gimple_set_vdef (gimple g, tree vdef)
+{
+  gcc_assert (gimple_has_mem_ops (g));
+  g->gsmembase.vdef = vdef;
+}
+
+
+/* Return true if statement G has operands and the modified field has
+   been set.  */
+
+static inline bool
+gimple_modified_p (const_gimple g)
+{
+  return (gimple_has_ops (g)) ? (bool) g->gsbase.modified : false;
+}
+
+
+/* Return the tree code for the expression computed by STMT.  This is
+   only valid for GIMPLE_COND, GIMPLE_CALL and GIMPLE_ASSIGN.  For
+   GIMPLE_CALL, return CALL_EXPR as the expression code for
+   consistency.  This is useful when the caller needs to deal with the
+   three kinds of computation that GIMPLE supports.  */
+
+static inline enum tree_code
+gimple_expr_code (const_gimple stmt)
+{
+  enum gimple_code code = gimple_code (stmt);
+  if (code == GIMPLE_ASSIGN || code == GIMPLE_COND)
+    return (enum tree_code) stmt->gsbase.subcode;
+  else if (code == GIMPLE_CALL)
+    return CALL_EXPR;
+  else
+    gcc_unreachable ();
+}
+
+
+/* Mark statement S as modified, and update it.  */
+
+static inline void
+update_stmt (gimple s)
+{
+  if (gimple_has_ops (s))
+    {
+      gimple_set_modified (s, true);
+      update_stmt_operands (s);
+    }
+}
+
+/* Update statement S if it has been optimized.  */
+
+static inline void
+update_stmt_if_modified (gimple s)
+{
+  if (gimple_modified_p (s))
+    update_stmt_operands (s);
+}
+
+/* Return true if statement STMT contains volatile operands.  */
+
+static inline bool
+gimple_has_volatile_ops (const_gimple stmt)
+{
+  if (gimple_has_mem_ops (stmt))
+    return stmt->gsbase.has_volatile_ops;
+  else
+    return false;
+}
+
+
+/* Set the HAS_VOLATILE_OPS flag to VOLATILEP.  */
+
+static inline void
+gimple_set_has_volatile_ops (gimple stmt, bool volatilep)
+{
+  if (gimple_has_mem_ops (stmt))
+    stmt->gsbase.has_volatile_ops = (unsigned) volatilep;
+}
+
+
+/* Return true if statement STMT may access memory.  */
+
+static inline bool
+gimple_references_memory_p (gimple stmt)
+{
+  return gimple_has_mem_ops (stmt) && gimple_vuse (stmt);
+}
+
+
+/* Return the subcode for OMP statement S.  */
+
+static inline unsigned
+gimple_omp_subcode (const_gimple s)
+{
+  gcc_assert (gimple_code (s) >= GIMPLE_OMP_ATOMIC_LOAD
+	      && gimple_code (s) <= GIMPLE_OMP_SINGLE);
+  return s->gsbase.subcode;
+}
+
+/* Set the subcode for OMP statement S to SUBCODE.  */
+
+static inline void
+gimple_omp_set_subcode (gimple s, unsigned int subcode)
+{
+  /* We only have 16 bits for the subcode.  Assert that we are not
+     overflowing it.  */
+  gcc_assert (subcode < (1 << 16));
+  s->gsbase.subcode = subcode;
+}
+
+/* Set the nowait flag on OMP_RETURN statement S.  */
+
+static inline void
+gimple_omp_return_set_nowait (gimple s)
+{
+  GIMPLE_CHECK (s, GIMPLE_OMP_RETURN);
+  s->gsbase.subcode |= GF_OMP_RETURN_NOWAIT;
+}
+
+
+/* Return true if OMP return statement G has the GF_OMP_RETURN_NOWAIT
+   flag set.  */
+
+static inline bool
+gimple_omp_return_nowait_p (const_gimple g)
+{
+  GIMPLE_CHECK (g, GIMPLE_OMP_RETURN);
+  return (gimple_omp_subcode (g) & GF_OMP_RETURN_NOWAIT) != 0;
+}
+
+
+/* Return true if OMP section statement G has the GF_OMP_SECTION_LAST
+   flag set.  */
+
+static inline bool
+gimple_omp_section_last_p (const_gimple g)
+{
+  GIMPLE_CHECK (g, GIMPLE_OMP_SECTION);
+  return (gimple_omp_subcode (g) & GF_OMP_SECTION_LAST) != 0;
+}
+
+
+/* Set the GF_OMP_SECTION_LAST flag on G.  */
+
+static inline void
+gimple_omp_section_set_last (gimple g)
+{
+  GIMPLE_CHECK (g, GIMPLE_OMP_SECTION);
+  g->gsbase.subcode |= GF_OMP_SECTION_LAST;
+}
+
+
+/* Return true if OMP parallel statement G has the
+   GF_OMP_PARALLEL_COMBINED flag set.  */
+
+static inline bool
+gimple_omp_parallel_combined_p (const_gimple g)
+{
+  GIMPLE_CHECK (g, GIMPLE_OMP_PARALLEL);
+  return (gimple_omp_subcode (g) & GF_OMP_PARALLEL_COMBINED) != 0;
+}
+
+
+/* Set the GF_OMP_PARALLEL_COMBINED field in G depending on the boolean
+   value of COMBINED_P.  */
+
+static inline void
+gimple_omp_parallel_set_combined_p (gimple g, bool combined_p)
+{
+  GIMPLE_CHECK (g, GIMPLE_OMP_PARALLEL);
+  if (combined_p)
+    g->gsbase.subcode |= GF_OMP_PARALLEL_COMBINED;
+  else
+    g->gsbase.subcode &= ~GF_OMP_PARALLEL_COMBINED;
+}
+
+
+/* Return the number of operands for statement GS.  */
+
+static inline unsigned
+gimple_num_ops (const_gimple gs)
+{
+  return gs->gsbase.num_ops;
+}
+
+
+/* Set the number of operands for statement GS.  */
+
+static inline void
+gimple_set_num_ops (gimple gs, unsigned num_ops)
+{
+  gs->gsbase.num_ops = num_ops;
+}
+
+
+/* Return the array of operands for statement GS.  */
+
+static inline tree *
+gimple_ops (gimple gs)
+{
+  size_t off;
+
+  /* All the tuples have their operand vector at the very bottom
+     of the structure.  Note that those structures that do not
+     have an operand vector have a zero offset.  */
+  off = gimple_ops_offset_[gimple_statement_structure (gs)];
+  gcc_assert (off != 0);
+
+  return (tree *) ((char *) gs + off);
+}
+
+
+/* Return operand I for statement GS.  */
+
+static inline tree
+gimple_op (const_gimple gs, unsigned i)
+{
+  if (gimple_has_ops (gs))
+    {
+      gcc_assert (i < gimple_num_ops (gs));
+      return gimple_ops (CONST_CAST_GIMPLE (gs))[i];
+    }
+  else
+    return NULL_TREE;
+}
+
+/* Return a pointer to operand I for statement GS.  */
+
+static inline tree *
+gimple_op_ptr (const_gimple gs, unsigned i)
+{
+  if (gimple_has_ops (gs))
+    {
+      gcc_assert (i < gimple_num_ops (gs));
+      return gimple_ops (CONST_CAST_GIMPLE (gs)) + i;
+    }
+  else
+    return NULL;
+}
+
+/* Set operand I of statement GS to OP.  */
+
+static inline void
+gimple_set_op (gimple gs, unsigned i, tree op)
+{
+  gcc_assert (gimple_has_ops (gs) && i < gimple_num_ops (gs));
+
+  /* Note.  It may be tempting to assert that OP matches
+     is_gimple_operand, but that would be wrong.  Different tuples
+     accept slightly different sets of tree operands.  Each caller
+     should perform its own validation.  */
+  gimple_ops (gs)[i] = op;
+}
+
+/* Return true if GS is a GIMPLE_ASSIGN.  */
+
+static inline bool
+is_gimple_assign (const_gimple gs)
+{
+  return gimple_code (gs) == GIMPLE_ASSIGN;
+}
+
+/* Determine if expression CODE is one of the valid expressions that can
+   be used on the RHS of GIMPLE assignments.  */
+
+static inline enum gimple_rhs_class
+get_gimple_rhs_class (enum tree_code code)
+{
+  return (enum gimple_rhs_class) gimple_rhs_class_table[(int) code];
+}
+
+/* Return the LHS of assignment statement GS.  */
+
+static inline tree
+gimple_assign_lhs (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
+  return gimple_op (gs, 0);
+}
+
+
+/* Return a pointer to the LHS of assignment statement GS.  */
+
+static inline tree *
+gimple_assign_lhs_ptr (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
+  return gimple_op_ptr (gs, 0);
+}
+
+
+/* Set LHS to be the LHS operand of assignment statement GS.  */
+
+static inline void
+gimple_assign_set_lhs (gimple gs, tree lhs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
+  gcc_assert (is_gimple_operand (lhs));
+  gimple_set_op (gs, 0, lhs);
+
+  if (lhs && TREE_CODE (lhs) == SSA_NAME)
+    SSA_NAME_DEF_STMT (lhs) = gs;
+}
+
+
+/* Return the first operand on the RHS of assignment statement GS.  */
+
+static inline tree
+gimple_assign_rhs1 (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
+  return gimple_op (gs, 1);
+}
+
+
+/* Return a pointer to the first operand on the RHS of assignment
+   statement GS.  */
+
+static inline tree *
+gimple_assign_rhs1_ptr (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
+  return gimple_op_ptr (gs, 1);
+}
+
+/* Set RHS to be the first operand on the RHS of assignment statement GS.  */
+
+static inline void
+gimple_assign_set_rhs1 (gimple gs, tree rhs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
+
+  /* If there are 3 or more operands, the 2 operands on the RHS must be
+     GIMPLE values.  */
+  if (gimple_num_ops (gs) >= 3)
+    gcc_assert (is_gimple_val (rhs));
+  else
+    gcc_assert (is_gimple_operand (rhs));
+
+  gimple_set_op (gs, 1, rhs);
+}
+
+
+/* Return the second operand on the RHS of assignment statement GS.
+   If GS does not have two operands, NULL is returned instead.  */
+
+static inline tree
+gimple_assign_rhs2 (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
+
+  if (gimple_num_ops (gs) >= 3)
+    return gimple_op (gs, 2);
+  else
+    return NULL_TREE;
+}
+
+
+/* Return a pointer to the second operand on the RHS of assignment
+   statement GS.  */
+
+static inline tree *
+gimple_assign_rhs2_ptr (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
+  return gimple_op_ptr (gs, 2);
+}
+
+
+/* Set RHS to be the second operand on the RHS of assignment statement GS.  */
+
+static inline void
+gimple_assign_set_rhs2 (gimple gs, tree rhs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
+
+  /* The 2 operands on the RHS must be GIMPLE values.  */
+  gcc_assert (is_gimple_val (rhs));
+
+  gimple_set_op (gs, 2, rhs);
+}
+
+/* Returns true if GS is a nontemporal move.  */
+
+static inline bool
+gimple_assign_nontemporal_move_p (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
+  return gs->gsbase.nontemporal_move;
+}
+
+/* Sets nontemporal move flag of GS to NONTEMPORAL.  */
+
+static inline void
+gimple_assign_set_nontemporal_move (gimple gs, bool nontemporal)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
+  gs->gsbase.nontemporal_move = nontemporal;
+}
+
+
+/* Return the code of the expression computed on the rhs of assignment
+   statement GS.  In case that the RHS is a single object, returns the
+   tree code of the object.  */
+
+static inline enum tree_code
+gimple_assign_rhs_code (const_gimple gs)
+{
+  enum tree_code code;
+  GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
+
+  code = gimple_expr_code (gs);
+  if (get_gimple_rhs_class (code) == GIMPLE_SINGLE_RHS)
+    code = TREE_CODE (gimple_assign_rhs1 (gs));
+
+  return code;
+}
+
+
+/* Set CODE to be the code for the expression computed on the RHS of
+   assignment S.  */
+
+static inline void
+gimple_assign_set_rhs_code (gimple s, enum tree_code code)
+{
+  GIMPLE_CHECK (s, GIMPLE_ASSIGN);
+  s->gsbase.subcode = code;
+}
+
+
+/* Return the gimple rhs class of the code of the expression computed on
+   the rhs of assignment statement GS.
+   This will never return GIMPLE_INVALID_RHS.  */
+
+static inline enum gimple_rhs_class
+gimple_assign_rhs_class (const_gimple gs)
+{
+  return get_gimple_rhs_class (gimple_assign_rhs_code (gs));
+}
+
+
+/* Return true if S is a type-cast assignment.  */
+
+static inline bool
+gimple_assign_cast_p (gimple s)
+{
+  if (is_gimple_assign (s))
+    {
+      enum tree_code sc = gimple_assign_rhs_code (s);
+      return CONVERT_EXPR_CODE_P (sc)
+	     || sc == VIEW_CONVERT_EXPR
+	     || sc == FIX_TRUNC_EXPR;
+    }
+
+  return false;
+}
+
+
+/* Return true if GS is a GIMPLE_CALL.  */
+
+static inline bool
+is_gimple_call (const_gimple gs)
+{
+  return gimple_code (gs) == GIMPLE_CALL;
+}
+
+/* Return the LHS of call statement GS.  */
+
+static inline tree
+gimple_call_lhs (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_CALL);
+  return gimple_op (gs, 0);
+}
+
+
+/* Return a pointer to the LHS of call statement GS.  */
+
+static inline tree *
+gimple_call_lhs_ptr (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_CALL);
+  return gimple_op_ptr (gs, 0);
+}
+
+
+/* Set LHS to be the LHS operand of call statement GS.  */
+
+static inline void
+gimple_call_set_lhs (gimple gs, tree lhs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_CALL);
+  gcc_assert (!lhs || is_gimple_operand (lhs));
+  gimple_set_op (gs, 0, lhs);
+  if (lhs && TREE_CODE (lhs) == SSA_NAME)
+    SSA_NAME_DEF_STMT (lhs) = gs;
+}
+
+
+/* Return the tree node representing the function called by call
+   statement GS.  */
+
+static inline tree
+gimple_call_fn (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_CALL);
+  return gimple_op (gs, 1);
+}
+
+
+/* Return a pointer to the tree node representing the function called by call
+   statement GS.  */
+
+static inline tree *
+gimple_call_fn_ptr (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_CALL);
+  return gimple_op_ptr (gs, 1);
+}
+
+
+/* Set FN to be the function called by call statement GS.  */
+
+static inline void
+gimple_call_set_fn (gimple gs, tree fn)
+{
+  GIMPLE_CHECK (gs, GIMPLE_CALL);
+  gcc_assert (is_gimple_operand (fn));
+  gimple_set_op (gs, 1, fn);
+}
+
+
+/* Set FNDECL to be the function called by call statement GS.  */
+
+static inline void
+gimple_call_set_fndecl (gimple gs, tree decl)
+{
+  GIMPLE_CHECK (gs, GIMPLE_CALL);
+  gcc_assert (TREE_CODE (decl) == FUNCTION_DECL);
+  gimple_set_op (gs, 1, build_fold_addr_expr_loc (gimple_location (gs), decl));
+}
+
+
+/* If a given GIMPLE_CALL's callee is a FUNCTION_DECL, return it.
+   Otherwise return NULL.  This function is analogous to
+   get_callee_fndecl in tree land.  */
+
+static inline tree
+gimple_call_fndecl (const_gimple gs)
+{
+  tree addr = gimple_call_fn (gs);
+  if (TREE_CODE (addr) == ADDR_EXPR)
+    {
+      gcc_assert (TREE_CODE (TREE_OPERAND (addr, 0)) == FUNCTION_DECL);
+      return TREE_OPERAND (addr, 0);
+    }
+  return NULL_TREE;
+}
+
+
+/* Return the type returned by call statement GS.  */
+
+static inline tree
+gimple_call_return_type (const_gimple gs)
+{
+  tree fn = gimple_call_fn (gs);
+  tree type = TREE_TYPE (fn);
+
+  /* See through the pointer.  */
+  gcc_assert (POINTER_TYPE_P (type));
+  type = TREE_TYPE (type);
+
+  gcc_assert (TREE_CODE (type) == FUNCTION_TYPE
+	      || TREE_CODE (type) == METHOD_TYPE);
+
+  /* The type returned by a FUNCTION_DECL is the type of its
+     function type.  */
+  return TREE_TYPE (type);
+}
+
+
+/* Return the static chain for call statement GS.  */
+
+static inline tree
+gimple_call_chain (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_CALL);
+  return gimple_op (gs, 2);
+}
+
+
+/* Return a pointer to the static chain for call statement GS.  */
+
+static inline tree *
+gimple_call_chain_ptr (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_CALL);
+  return gimple_op_ptr (gs, 2);
+}
+
+/* Set CHAIN to be the static chain for call statement GS.  */
+
+static inline void
+gimple_call_set_chain (gimple gs, tree chain)
+{
+  GIMPLE_CHECK (gs, GIMPLE_CALL);
+  gcc_assert (chain == NULL
+              || TREE_CODE (chain) == ADDR_EXPR
+              || SSA_VAR_P (chain));
+  gimple_set_op (gs, 2, chain);
+}
+
+
+/* Return the number of arguments used by call statement GS.  */
+
+static inline unsigned
+gimple_call_num_args (const_gimple gs)
+{
+  unsigned num_ops;
+  GIMPLE_CHECK (gs, GIMPLE_CALL);
+  num_ops = gimple_num_ops (gs);
+  gcc_assert (num_ops >= 3);
+  return num_ops - 3;
+}
+
+
+/* Return the argument at position INDEX for call statement GS.  */
+
+static inline tree
+gimple_call_arg (const_gimple gs, unsigned index)
+{
+  GIMPLE_CHECK (gs, GIMPLE_CALL);
+  return gimple_op (gs, index + 3);
+}
+
+
+/* Return a pointer to the argument at position INDEX for call
+   statement GS.  */
+
+static inline tree *
+gimple_call_arg_ptr (const_gimple gs, unsigned index)
+{
+  GIMPLE_CHECK (gs, GIMPLE_CALL);
+  return gimple_op_ptr (gs, index + 3);
+}
+
+
+/* Set ARG to be the argument at position INDEX for call statement GS.  */
+
+static inline void
+gimple_call_set_arg (gimple gs, unsigned index, tree arg)
+{
+  GIMPLE_CHECK (gs, GIMPLE_CALL);
+  gcc_assert (is_gimple_operand (arg));
+  gimple_set_op (gs, index + 3, arg);
+}
+
+
+/* If TAIL_P is true, mark call statement S as being a tail call
+   (i.e., a call just before the exit of a function).  These calls are
+   candidate for tail call optimization.  */
+
+static inline void
+gimple_call_set_tail (gimple s, bool tail_p)
+{
+  GIMPLE_CHECK (s, GIMPLE_CALL);
+  if (tail_p)
+    s->gsbase.subcode |= GF_CALL_TAILCALL;
+  else
+    s->gsbase.subcode &= ~GF_CALL_TAILCALL;
+}
+
+#ifndef noCbC
+/* If CBCGOTO_P is true, mark call statement S as being a cbc goto
+   (i.e., a call just before the exit of a function).  These calls are
+   candidate for tail call optimization.  */
+
+static inline void
+gimple_call_set_cbc_goto (gimple s, bool cbcgoto_p)
+{
+  GIMPLE_CHECK (s, GIMPLE_CALL);
+  if (cbcgoto_p)
+    s->gsbase.subcode |= GF_CALL_CBC_GOTO;
+  else
+    s->gsbase.subcode &= ~GF_CALL_CBC_GOTO;
+}
+#endif
+
+/* Return true if GIMPLE_CALL S is marked as a tail call.  */
+
+static inline bool
+gimple_call_tail_p (gimple s)
+{
+  GIMPLE_CHECK (s, GIMPLE_CALL);
+  return (s->gsbase.subcode & GF_CALL_TAILCALL) != 0;
+}
+
+#ifndef noCbC
+/* Return true if GIMPLE_CALL S is marked as a cbc goto.  */
+
+static inline bool
+gimple_call_cbc_goto_p (gimple s)
+{
+  GIMPLE_CHECK (s, GIMPLE_CALL);
+  return (s->gsbase.subcode & GF_CALL_CBC_GOTO) != 0;
+}
+#endif
+
+/* Set the inlinable status of GIMPLE_CALL S to INLINABLE_P.  */
+
+static inline void
+gimple_call_set_cannot_inline (gimple s, bool inlinable_p)
+{
+  GIMPLE_CHECK (s, GIMPLE_CALL);
+  if (inlinable_p)
+    s->gsbase.subcode |= GF_CALL_CANNOT_INLINE;
+  else
+    s->gsbase.subcode &= ~GF_CALL_CANNOT_INLINE;
+}
+
+
+/* Return true if GIMPLE_CALL S cannot be inlined.  */
+
+static inline bool
+gimple_call_cannot_inline_p (gimple s)
+{
+  GIMPLE_CHECK (s, GIMPLE_CALL);
+  return (s->gsbase.subcode & GF_CALL_CANNOT_INLINE) != 0;
+}
+
+
+/* If RETURN_SLOT_OPT_P is true mark GIMPLE_CALL S as valid for return
+   slot optimization.  This transformation uses the target of the call
+   expansion as the return slot for calls that return in memory.  */
+
+static inline void
+gimple_call_set_return_slot_opt (gimple s, bool return_slot_opt_p)
+{
+  GIMPLE_CHECK (s, GIMPLE_CALL);
+  if (return_slot_opt_p)
+    s->gsbase.subcode |= GF_CALL_RETURN_SLOT_OPT;
+  else
+    s->gsbase.subcode &= ~GF_CALL_RETURN_SLOT_OPT;
+}
+
+
+/* Return true if S is marked for return slot optimization.  */
+
+static inline bool
+gimple_call_return_slot_opt_p (gimple s)
+{
+  GIMPLE_CHECK (s, GIMPLE_CALL);
+  return (s->gsbase.subcode & GF_CALL_RETURN_SLOT_OPT) != 0;
+}
+
+
+/* If FROM_THUNK_P is true, mark GIMPLE_CALL S as being the jump from a
+   thunk to the thunked-to function.  */
+
+static inline void
+gimple_call_set_from_thunk (gimple s, bool from_thunk_p)
+{
+  GIMPLE_CHECK (s, GIMPLE_CALL);
+  if (from_thunk_p)
+    s->gsbase.subcode |= GF_CALL_FROM_THUNK;
+  else
+    s->gsbase.subcode &= ~GF_CALL_FROM_THUNK;
+}
+
+
+/* Return true if GIMPLE_CALL S is a jump from a thunk.  */
+
+static inline bool
+gimple_call_from_thunk_p (gimple s)
+{
+  GIMPLE_CHECK (s, GIMPLE_CALL);
+  return (s->gsbase.subcode & GF_CALL_FROM_THUNK) != 0;
+}
+
+
+/* If PASS_ARG_PACK_P is true, GIMPLE_CALL S is a stdarg call that needs the
+   argument pack in its argument list.  */
+
+static inline void
+gimple_call_set_va_arg_pack (gimple s, bool pass_arg_pack_p)
+{
+  GIMPLE_CHECK (s, GIMPLE_CALL);
+  if (pass_arg_pack_p)
+    s->gsbase.subcode |= GF_CALL_VA_ARG_PACK;
+  else
+    s->gsbase.subcode &= ~GF_CALL_VA_ARG_PACK;
+}
+
+
+/* Return true if GIMPLE_CALL S is a stdarg call that needs the
+   argument pack in its argument list.  */
+
+static inline bool
+gimple_call_va_arg_pack_p (gimple s)
+{
+  GIMPLE_CHECK (s, GIMPLE_CALL);
+  return (s->gsbase.subcode & GF_CALL_VA_ARG_PACK) != 0;
+}
+
+
+/* Return true if S is a noreturn call.  */
+
+static inline bool
+gimple_call_noreturn_p (gimple s)
+{
+  GIMPLE_CHECK (s, GIMPLE_CALL);
+  return (gimple_call_flags (s) & ECF_NORETURN) != 0;
+}
+
+
+/* Return true if S is a nothrow call.  */
+
+static inline bool
+gimple_call_nothrow_p (gimple s)
+{
+  GIMPLE_CHECK (s, GIMPLE_CALL);
+  return (gimple_call_flags (s) & ECF_NOTHROW) != 0;
+}
+
+
+/* Copy all the GF_CALL_* flags from ORIG_CALL to DEST_CALL.  */
+
+static inline void
+gimple_call_copy_flags (gimple dest_call, gimple orig_call)
+{
+  GIMPLE_CHECK (dest_call, GIMPLE_CALL);
+  GIMPLE_CHECK (orig_call, GIMPLE_CALL);
+  dest_call->gsbase.subcode = orig_call->gsbase.subcode;
+}
+
+
+/* Returns true if this is a GIMPLE_ASSIGN or a GIMPLE_CALL with a
+   non-NULL lhs.  */
+
+static inline bool
+gimple_has_lhs (gimple stmt)
+{
+  return (is_gimple_assign (stmt)
+	  || (is_gimple_call (stmt)
+	      && gimple_call_lhs (stmt) != NULL_TREE));
+}
+
+
+/* Return the code of the predicate computed by conditional statement GS.  */
+
+static inline enum tree_code
+gimple_cond_code (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_COND);
+  return (enum tree_code) gs->gsbase.subcode;
+}
+
+
+/* Set CODE to be the predicate code for the conditional statement GS.  */
+
+static inline void
+gimple_cond_set_code (gimple gs, enum tree_code code)
+{
+  GIMPLE_CHECK (gs, GIMPLE_COND);
+  gcc_assert (TREE_CODE_CLASS (code) == tcc_comparison);
+  gs->gsbase.subcode = code;
+}
+
+
+/* Return the LHS of the predicate computed by conditional statement GS.  */
+
+static inline tree
+gimple_cond_lhs (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_COND);
+  return gimple_op (gs, 0);
+}
+
+/* Return the pointer to the LHS of the predicate computed by conditional
+   statement GS.  */
+
+static inline tree *
+gimple_cond_lhs_ptr (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_COND);
+  return gimple_op_ptr (gs, 0);
+}
+
+/* Set LHS to be the LHS operand of the predicate computed by
+   conditional statement GS.  */
+
+static inline void
+gimple_cond_set_lhs (gimple gs, tree lhs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_COND);
+  gcc_assert (is_gimple_operand (lhs));
+  gimple_set_op (gs, 0, lhs);
+}
+
+
+/* Return the RHS operand of the predicate computed by conditional GS.  */
+
+static inline tree
+gimple_cond_rhs (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_COND);
+  return gimple_op (gs, 1);
+}
+
+/* Return the pointer to the RHS operand of the predicate computed by
+   conditional GS.  */
+
+static inline tree *
+gimple_cond_rhs_ptr (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_COND);
+  return gimple_op_ptr (gs, 1);
+}
+
+
+/* Set RHS to be the RHS operand of the predicate computed by
+   conditional statement GS.  */
+
+static inline void
+gimple_cond_set_rhs (gimple gs, tree rhs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_COND);
+  gcc_assert (is_gimple_operand (rhs));
+  gimple_set_op (gs, 1, rhs);
+}
+
+
+/* Return the label used by conditional statement GS when its
+   predicate evaluates to true.  */
+
+static inline tree
+gimple_cond_true_label (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_COND);
+  return gimple_op (gs, 2);
+}
+
+
+/* Set LABEL to be the label used by conditional statement GS when its
+   predicate evaluates to true.  */
+
+static inline void
+gimple_cond_set_true_label (gimple gs, tree label)
+{
+  GIMPLE_CHECK (gs, GIMPLE_COND);
+  gcc_assert (!label || TREE_CODE (label) == LABEL_DECL);
+  gimple_set_op (gs, 2, label);
+}
+
+
+/* Set LABEL to be the label used by conditional statement GS when its
+   predicate evaluates to false.  */
+
+static inline void
+gimple_cond_set_false_label (gimple gs, tree label)
+{
+  GIMPLE_CHECK (gs, GIMPLE_COND);
+  gcc_assert (!label || TREE_CODE (label) == LABEL_DECL);
+  gimple_set_op (gs, 3, label);
+}
+
+
+/* Return the label used by conditional statement GS when its
+   predicate evaluates to false.  */
+
+static inline tree
+gimple_cond_false_label (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_COND);
+  return gimple_op (gs, 3);
+}
+
+
+/* Set the conditional COND_STMT to be of the form 'if (1 == 0)'.  */
+
+static inline void
+gimple_cond_make_false (gimple gs)
+{
+  gimple_cond_set_lhs (gs, boolean_true_node);
+  gimple_cond_set_rhs (gs, boolean_false_node);
+  gs->gsbase.subcode = EQ_EXPR;
+}
+
+
+/* Set the conditional COND_STMT to be of the form 'if (1 == 1)'.  */
+
+static inline void
+gimple_cond_make_true (gimple gs)
+{
+  gimple_cond_set_lhs (gs, boolean_true_node);
+  gimple_cond_set_rhs (gs, boolean_true_node);
+  gs->gsbase.subcode = EQ_EXPR;
+}
+
+/* Check if conditional statemente GS is of the form 'if (1 == 1)',
+  'if (0 == 0)', 'if (1 != 0)' or 'if (0 != 1)' */
+
+static inline bool
+gimple_cond_true_p (const_gimple gs)
+{
+  tree lhs = gimple_cond_lhs (gs);
+  tree rhs = gimple_cond_rhs (gs);
+  enum tree_code code = gimple_cond_code (gs);
+
+  if (lhs != boolean_true_node && lhs != boolean_false_node)
+    return false;
+
+  if (rhs != boolean_true_node && rhs != boolean_false_node)
+    return false;
+
+  if (code == NE_EXPR && lhs != rhs)
+    return true;
+
+  if (code == EQ_EXPR && lhs == rhs)
+      return true;
+
+  return false;
+}
+
+/* Check if conditional statement GS is of the form 'if (1 != 1)',
+   'if (0 != 0)', 'if (1 == 0)' or 'if (0 == 1)' */
+
+static inline bool
+gimple_cond_false_p (const_gimple gs)
+{
+  tree lhs = gimple_cond_lhs (gs);
+  tree rhs = gimple_cond_rhs (gs);
+  enum tree_code code = gimple_cond_code (gs);
+
+  if (lhs != boolean_true_node && lhs != boolean_false_node)
+    return false;
+
+  if (rhs != boolean_true_node && rhs != boolean_false_node)
+    return false;
+
+  if (code == NE_EXPR && lhs == rhs)
+    return true;
+
+  if (code == EQ_EXPR && lhs != rhs)
+      return true;
+
+  return false;
+}
+
+/* Check if conditional statement GS is of the form 'if (var != 0)' or
+   'if (var == 1)' */
+
+static inline bool
+gimple_cond_single_var_p (gimple gs)
+{
+  if (gimple_cond_code (gs) == NE_EXPR
+      && gimple_cond_rhs (gs) == boolean_false_node)
+    return true;
+
+  if (gimple_cond_code (gs) == EQ_EXPR
+      && gimple_cond_rhs (gs) == boolean_true_node)
+    return true;
+
+  return false;
+}
+
+/* Set the code, LHS and RHS of GIMPLE_COND STMT from CODE, LHS and RHS.  */
+
+static inline void
+gimple_cond_set_condition (gimple stmt, enum tree_code code, tree lhs, tree rhs)
+{
+  gimple_cond_set_code (stmt, code);
+  gimple_cond_set_lhs (stmt, lhs);
+  gimple_cond_set_rhs (stmt, rhs);
+}
+
+/* Return the LABEL_DECL node used by GIMPLE_LABEL statement GS.  */
+
+static inline tree
+gimple_label_label (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_LABEL);
+  return gimple_op (gs, 0);
+}
+
+
+/* Set LABEL to be the LABEL_DECL node used by GIMPLE_LABEL statement
+   GS.  */
+
+static inline void
+gimple_label_set_label (gimple gs, tree label)
+{
+  GIMPLE_CHECK (gs, GIMPLE_LABEL);
+  gcc_assert (TREE_CODE (label) == LABEL_DECL);
+  gimple_set_op (gs, 0, label);
+}
+
+
+/* Return the destination of the unconditional jump GS.  */
+
+static inline tree
+gimple_goto_dest (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_GOTO);
+  return gimple_op (gs, 0);
+}
+
+
+/* Set DEST to be the destination of the unconditonal jump GS.  */
+
+static inline void
+gimple_goto_set_dest (gimple gs, tree dest)
+{
+  GIMPLE_CHECK (gs, GIMPLE_GOTO);
+  gcc_assert (is_gimple_operand (dest));
+  gimple_set_op (gs, 0, dest);
+}
+
+
+/* Return the variables declared in the GIMPLE_BIND statement GS.  */
+
+static inline tree
+gimple_bind_vars (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_BIND);
+  return gs->gimple_bind.vars;
+}
+
+
+/* Set VARS to be the set of variables declared in the GIMPLE_BIND
+   statement GS.  */
+
+static inline void
+gimple_bind_set_vars (gimple gs, tree vars)
+{
+  GIMPLE_CHECK (gs, GIMPLE_BIND);
+  gs->gimple_bind.vars = vars;
+}
+
+
+/* Append VARS to the set of variables declared in the GIMPLE_BIND
+   statement GS.  */
+
+static inline void
+gimple_bind_append_vars (gimple gs, tree vars)
+{
+  GIMPLE_CHECK (gs, GIMPLE_BIND);
+  gs->gimple_bind.vars = chainon (gs->gimple_bind.vars, vars);
+}
+
+
+/* Return the GIMPLE sequence contained in the GIMPLE_BIND statement GS.  */
+
+static inline gimple_seq
+gimple_bind_body (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_BIND);
+  return gs->gimple_bind.body;
+}
+
+
+/* Set SEQ to be the GIMPLE sequence contained in the GIMPLE_BIND
+   statement GS.  */
+
+static inline void
+gimple_bind_set_body (gimple gs, gimple_seq seq)
+{
+  GIMPLE_CHECK (gs, GIMPLE_BIND);
+  gs->gimple_bind.body = seq;
+}
+
+
+/* Append a statement to the end of a GIMPLE_BIND's body.  */
+
+static inline void
+gimple_bind_add_stmt (gimple gs, gimple stmt)
+{
+  GIMPLE_CHECK (gs, GIMPLE_BIND);
+  gimple_seq_add_stmt (&gs->gimple_bind.body, stmt);
+}
+
+
+/* Append a sequence of statements to the end of a GIMPLE_BIND's body.  */
+
+static inline void
+gimple_bind_add_seq (gimple gs, gimple_seq seq)
+{
+  GIMPLE_CHECK (gs, GIMPLE_BIND);
+  gimple_seq_add_seq (&gs->gimple_bind.body, seq);
+}
+
+
+/* Return the TREE_BLOCK node associated with GIMPLE_BIND statement
+   GS.  This is analogous to the BIND_EXPR_BLOCK field in trees.  */
+
+static inline tree
+gimple_bind_block (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_BIND);
+  return gs->gimple_bind.block;
+}
+
+
+/* Set BLOCK to be the TREE_BLOCK node associated with GIMPLE_BIND
+   statement GS.  */
+
+static inline void
+gimple_bind_set_block (gimple gs, tree block)
+{
+  GIMPLE_CHECK (gs, GIMPLE_BIND);
+  gcc_assert (block == NULL_TREE || TREE_CODE (block) == BLOCK);
+  gs->gimple_bind.block = block;
+}
+
+
+/* Return the number of input operands for GIMPLE_ASM GS.  */
+
+static inline unsigned
+gimple_asm_ninputs (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASM);
+  return gs->gimple_asm.ni;
+}
+
+
+/* Return the number of output operands for GIMPLE_ASM GS.  */
+
+static inline unsigned
+gimple_asm_noutputs (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASM);
+  return gs->gimple_asm.no;
+}
+
+
+/* Return the number of clobber operands for GIMPLE_ASM GS.  */
+
+static inline unsigned
+gimple_asm_nclobbers (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASM);
+  return gs->gimple_asm.nc;
+}
+
+/* Return the number of label operands for GIMPLE_ASM GS.  */
+
+static inline unsigned
+gimple_asm_nlabels (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASM);
+  return gs->gimple_asm.nl;
+}
+
+/* Return input operand INDEX of GIMPLE_ASM GS.  */
+
+static inline tree
+gimple_asm_input_op (const_gimple gs, unsigned index)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASM);
+  gcc_assert (index <= gs->gimple_asm.ni);
+  return gimple_op (gs, index);
+}
+
+/* Return a pointer to input operand INDEX of GIMPLE_ASM GS.  */
+
+static inline tree *
+gimple_asm_input_op_ptr (const_gimple gs, unsigned index)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASM);
+  gcc_assert (index <= gs->gimple_asm.ni);
+  return gimple_op_ptr (gs, index);
+}
+
+
+/* Set IN_OP to be input operand INDEX in GIMPLE_ASM GS.  */
+
+static inline void
+gimple_asm_set_input_op (gimple gs, unsigned index, tree in_op)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASM);
+  gcc_assert (index <= gs->gimple_asm.ni);
+  gcc_assert (TREE_CODE (in_op) == TREE_LIST);
+  gimple_set_op (gs, index, in_op);
+}
+
+
+/* Return output operand INDEX of GIMPLE_ASM GS.  */
+
+static inline tree
+gimple_asm_output_op (const_gimple gs, unsigned index)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASM);
+  gcc_assert (index <= gs->gimple_asm.no);
+  return gimple_op (gs, index + gs->gimple_asm.ni);
+}
+
+/* Return a pointer to output operand INDEX of GIMPLE_ASM GS.  */
+
+static inline tree *
+gimple_asm_output_op_ptr (const_gimple gs, unsigned index)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASM);
+  gcc_assert (index <= gs->gimple_asm.no);
+  return gimple_op_ptr (gs, index + gs->gimple_asm.ni);
+}
+
+
+/* Set OUT_OP to be output operand INDEX in GIMPLE_ASM GS.  */
+
+static inline void
+gimple_asm_set_output_op (gimple gs, unsigned index, tree out_op)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASM);
+  gcc_assert (index <= gs->gimple_asm.no);
+  gcc_assert (TREE_CODE (out_op) == TREE_LIST);
+  gimple_set_op (gs, index + gs->gimple_asm.ni, out_op);
+}
+
+
+/* Return clobber operand INDEX of GIMPLE_ASM GS.  */
+
+static inline tree
+gimple_asm_clobber_op (const_gimple gs, unsigned index)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASM);
+  gcc_assert (index <= gs->gimple_asm.nc);
+  return gimple_op (gs, index + gs->gimple_asm.ni + gs->gimple_asm.no);
+}
+
+
+/* Set CLOBBER_OP to be clobber operand INDEX in GIMPLE_ASM GS.  */
+
+static inline void
+gimple_asm_set_clobber_op (gimple gs, unsigned index, tree clobber_op)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASM);
+  gcc_assert (index <= gs->gimple_asm.nc);
+  gcc_assert (TREE_CODE (clobber_op) == TREE_LIST);
+  gimple_set_op (gs, index + gs->gimple_asm.ni + gs->gimple_asm.no, clobber_op);
+}
+
+/* Return label operand INDEX of GIMPLE_ASM GS.  */
+
+static inline tree
+gimple_asm_label_op (const_gimple gs, unsigned index)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASM);
+  gcc_assert (index <= gs->gimple_asm.nl);
+  return gimple_op (gs, index + gs->gimple_asm.ni + gs->gimple_asm.nc);
+}
+
+/* Set LABEL_OP to be label operand INDEX in GIMPLE_ASM GS.  */
+
+static inline void
+gimple_asm_set_label_op (gimple gs, unsigned index, tree label_op)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASM);
+  gcc_assert (index <= gs->gimple_asm.nl);
+  gcc_assert (TREE_CODE (label_op) == TREE_LIST);
+  gimple_set_op (gs, index + gs->gimple_asm.ni + gs->gimple_asm.nc, label_op);
+}
+
+/* Return the string representing the assembly instruction in
+   GIMPLE_ASM GS.  */
+
+static inline const char *
+gimple_asm_string (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASM);
+  return gs->gimple_asm.string;
+}
+
+
+/* Return true if GS is an asm statement marked volatile.  */
+
+static inline bool
+gimple_asm_volatile_p (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASM);
+  return (gs->gsbase.subcode & GF_ASM_VOLATILE) != 0;
+}
+
+
+/* If VOLATLE_P is true, mark asm statement GS as volatile.  */
+
+static inline void
+gimple_asm_set_volatile (gimple gs, bool volatile_p)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASM);
+  if (volatile_p)
+    gs->gsbase.subcode |= GF_ASM_VOLATILE;
+  else
+    gs->gsbase.subcode &= ~GF_ASM_VOLATILE;
+}
+
+
+/* If INPUT_P is true, mark asm GS as an ASM_INPUT.  */
+
+static inline void
+gimple_asm_set_input (gimple gs, bool input_p)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASM);
+  if (input_p)
+    gs->gsbase.subcode |= GF_ASM_INPUT;
+  else
+    gs->gsbase.subcode &= ~GF_ASM_INPUT;
+}
+
+
+/* Return true if asm GS is an ASM_INPUT.  */
+
+static inline bool
+gimple_asm_input_p (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_ASM);
+  return (gs->gsbase.subcode & GF_ASM_INPUT) != 0;
+}
+
+
+/* Return the types handled by GIMPLE_CATCH statement GS.  */
+
+static inline tree
+gimple_catch_types (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_CATCH);
+  return gs->gimple_catch.types;
+}
+
+
+/* Return a pointer to the types handled by GIMPLE_CATCH statement GS.  */
+
+static inline tree *
+gimple_catch_types_ptr (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_CATCH);
+  return &gs->gimple_catch.types;
+}
+
+
+/* Return the GIMPLE sequence representing the body of the handler of
+   GIMPLE_CATCH statement GS.  */
+
+static inline gimple_seq
+gimple_catch_handler (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_CATCH);
+  return gs->gimple_catch.handler;
+}
+
+
+/* Return a pointer to the GIMPLE sequence representing the body of
+   the handler of GIMPLE_CATCH statement GS.  */
+
+static inline gimple_seq *
+gimple_catch_handler_ptr (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_CATCH);
+  return &gs->gimple_catch.handler;
+}
+
+
+/* Set T to be the set of types handled by GIMPLE_CATCH GS.  */
+
+static inline void
+gimple_catch_set_types (gimple gs, tree t)
+{
+  GIMPLE_CHECK (gs, GIMPLE_CATCH);
+  gs->gimple_catch.types = t;
+}
+
+
+/* Set HANDLER to be the body of GIMPLE_CATCH GS.  */
+
+static inline void
+gimple_catch_set_handler (gimple gs, gimple_seq handler)
+{
+  GIMPLE_CHECK (gs, GIMPLE_CATCH);
+  gs->gimple_catch.handler = handler;
+}
+
+
+/* Return the types handled by GIMPLE_EH_FILTER statement GS.  */
+
+static inline tree
+gimple_eh_filter_types (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_EH_FILTER);
+  return gs->gimple_eh_filter.types;
+}
+
+
+/* Return a pointer to the types handled by GIMPLE_EH_FILTER statement
+   GS.  */
+
+static inline tree *
+gimple_eh_filter_types_ptr (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_EH_FILTER);
+  return &gs->gimple_eh_filter.types;
+}
+
+
+/* Return the sequence of statement to execute when GIMPLE_EH_FILTER
+   statement fails.  */
+
+static inline gimple_seq
+gimple_eh_filter_failure (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_EH_FILTER);
+  return gs->gimple_eh_filter.failure;
+}
+
+
+/* Set TYPES to be the set of types handled by GIMPLE_EH_FILTER GS.  */
+
+static inline void
+gimple_eh_filter_set_types (gimple gs, tree types)
+{
+  GIMPLE_CHECK (gs, GIMPLE_EH_FILTER);
+  gs->gimple_eh_filter.types = types;
+}
+
+
+/* Set FAILURE to be the sequence of statements to execute on failure
+   for GIMPLE_EH_FILTER GS.  */
+
+static inline void
+gimple_eh_filter_set_failure (gimple gs, gimple_seq failure)
+{
+  GIMPLE_CHECK (gs, GIMPLE_EH_FILTER);
+  gs->gimple_eh_filter.failure = failure;
+}
+
+/* Get the function decl to be called by the MUST_NOT_THROW region.  */
+
+static inline tree
+gimple_eh_must_not_throw_fndecl (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_EH_MUST_NOT_THROW);
+  return gs->gimple_eh_mnt.fndecl;
+}
+
+/* Set the function decl to be called by GS to DECL.  */
+
+static inline void
+gimple_eh_must_not_throw_set_fndecl (gimple gs, tree decl)
+{
+  GIMPLE_CHECK (gs, GIMPLE_EH_MUST_NOT_THROW);
+  gs->gimple_eh_mnt.fndecl = decl;
+}
+
+
+/* GIMPLE_TRY accessors. */
+
+/* Return the kind of try block represented by GIMPLE_TRY GS.  This is
+   either GIMPLE_TRY_CATCH or GIMPLE_TRY_FINALLY.  */
+
+static inline enum gimple_try_flags
+gimple_try_kind (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_TRY);
+  return (enum gimple_try_flags) (gs->gsbase.subcode & GIMPLE_TRY_KIND);
+}
+
+
+/* Set the kind of try block represented by GIMPLE_TRY GS.  */
+
+static inline void
+gimple_try_set_kind (gimple gs, enum gimple_try_flags kind)
+{
+  GIMPLE_CHECK (gs, GIMPLE_TRY);
+  gcc_assert (kind == GIMPLE_TRY_CATCH || kind == GIMPLE_TRY_FINALLY);
+  if (gimple_try_kind (gs) != kind)
+    gs->gsbase.subcode = (unsigned int) kind;
+}
+
+
+/* Return the GIMPLE_TRY_CATCH_IS_CLEANUP flag.  */
+
+static inline bool
+gimple_try_catch_is_cleanup (const_gimple gs)
+{
+  gcc_assert (gimple_try_kind (gs) == GIMPLE_TRY_CATCH);
+  return (gs->gsbase.subcode & GIMPLE_TRY_CATCH_IS_CLEANUP) != 0;
+}
+
+
+/* Return the sequence of statements used as the body for GIMPLE_TRY GS.  */
+
+static inline gimple_seq
+gimple_try_eval (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_TRY);
+  return gs->gimple_try.eval;
+}
+
+
+/* Return the sequence of statements used as the cleanup body for
+   GIMPLE_TRY GS.  */
+
+static inline gimple_seq
+gimple_try_cleanup (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_TRY);
+  return gs->gimple_try.cleanup;
+}
+
+
+/* Set the GIMPLE_TRY_CATCH_IS_CLEANUP flag.  */
+
+static inline void
+gimple_try_set_catch_is_cleanup (gimple g, bool catch_is_cleanup)
+{
+  gcc_assert (gimple_try_kind (g) == GIMPLE_TRY_CATCH);
+  if (catch_is_cleanup)
+    g->gsbase.subcode |= GIMPLE_TRY_CATCH_IS_CLEANUP;
+  else
+    g->gsbase.subcode &= ~GIMPLE_TRY_CATCH_IS_CLEANUP;
+}
+
+
+/* Set EVAL to be the sequence of statements to use as the body for
+   GIMPLE_TRY GS.  */
+
+static inline void
+gimple_try_set_eval (gimple gs, gimple_seq eval)
+{
+  GIMPLE_CHECK (gs, GIMPLE_TRY);
+  gs->gimple_try.eval = eval;
+}
+
+
+/* Set CLEANUP to be the sequence of statements to use as the cleanup
+   body for GIMPLE_TRY GS.  */
+
+static inline void
+gimple_try_set_cleanup (gimple gs, gimple_seq cleanup)
+{
+  GIMPLE_CHECK (gs, GIMPLE_TRY);
+  gs->gimple_try.cleanup = cleanup;
+}
+
+
+/* Return the cleanup sequence for cleanup statement GS.  */
+
+static inline gimple_seq
+gimple_wce_cleanup (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_WITH_CLEANUP_EXPR);
+  return gs->gimple_wce.cleanup;
+}
+
+
+/* Set CLEANUP to be the cleanup sequence for GS.  */
+
+static inline void
+gimple_wce_set_cleanup (gimple gs, gimple_seq cleanup)
+{
+  GIMPLE_CHECK (gs, GIMPLE_WITH_CLEANUP_EXPR);
+  gs->gimple_wce.cleanup = cleanup;
+}
+
+
+/* Return the CLEANUP_EH_ONLY flag for a WCE tuple.  */
+
+static inline bool
+gimple_wce_cleanup_eh_only (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_WITH_CLEANUP_EXPR);
+  return gs->gsbase.subcode != 0;
+}
+
+
+/* Set the CLEANUP_EH_ONLY flag for a WCE tuple.  */
+
+static inline void
+gimple_wce_set_cleanup_eh_only (gimple gs, bool eh_only_p)
+{
+  GIMPLE_CHECK (gs, GIMPLE_WITH_CLEANUP_EXPR);
+  gs->gsbase.subcode = (unsigned int) eh_only_p;
+}
+
+
+/* Return the maximum number of arguments supported by GIMPLE_PHI GS.  */
+
+static inline unsigned
+gimple_phi_capacity (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_PHI);
+  return gs->gimple_phi.capacity;
+}
+
+
+/* Return the number of arguments in GIMPLE_PHI GS.  This must always
+   be exactly the number of incoming edges for the basic block holding
+   GS.  */
+
+static inline unsigned
+gimple_phi_num_args (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_PHI);
+  return gs->gimple_phi.nargs;
+}
+
+
+/* Return the SSA name created by GIMPLE_PHI GS.  */
+
+static inline tree
+gimple_phi_result (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_PHI);
+  return gs->gimple_phi.result;
+}
+
+/* Return a pointer to the SSA name created by GIMPLE_PHI GS.  */
+
+static inline tree *
+gimple_phi_result_ptr (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_PHI);
+  return &gs->gimple_phi.result;
+}
+
+/* Set RESULT to be the SSA name created by GIMPLE_PHI GS.  */
+
+static inline void
+gimple_phi_set_result (gimple gs, tree result)
+{
+  GIMPLE_CHECK (gs, GIMPLE_PHI);
+  gs->gimple_phi.result = result;
+}
+
+
+/* Return the PHI argument corresponding to incoming edge INDEX for
+   GIMPLE_PHI GS.  */
+
+static inline struct phi_arg_d *
+gimple_phi_arg (gimple gs, unsigned index)
+{
+  GIMPLE_CHECK (gs, GIMPLE_PHI);
+  gcc_assert (index <= gs->gimple_phi.capacity);
+  return &(gs->gimple_phi.args[index]);
+}
+
+/* Set PHIARG to be the argument corresponding to incoming edge INDEX
+   for GIMPLE_PHI GS.  */
+
+static inline void
+gimple_phi_set_arg (gimple gs, unsigned index, struct phi_arg_d * phiarg)
+{
+  GIMPLE_CHECK (gs, GIMPLE_PHI);
+  gcc_assert (index <= gs->gimple_phi.nargs);
+  memcpy (gs->gimple_phi.args + index, phiarg, sizeof (struct phi_arg_d));
+}
+
+/* Return the region number for GIMPLE_RESX GS.  */
+
+static inline int
+gimple_resx_region (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_RESX);
+  return gs->gimple_eh_ctrl.region;
+}
+
+/* Set REGION to be the region number for GIMPLE_RESX GS.  */
+
+static inline void
+gimple_resx_set_region (gimple gs, int region)
+{
+  GIMPLE_CHECK (gs, GIMPLE_RESX);
+  gs->gimple_eh_ctrl.region = region;
+}
+
+/* Return the region number for GIMPLE_EH_DISPATCH GS.  */
+
+static inline int
+gimple_eh_dispatch_region (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_EH_DISPATCH);
+  return gs->gimple_eh_ctrl.region;
+}
+
+/* Set REGION to be the region number for GIMPLE_EH_DISPATCH GS.  */
+
+static inline void
+gimple_eh_dispatch_set_region (gimple gs, int region)
+{
+  GIMPLE_CHECK (gs, GIMPLE_EH_DISPATCH);
+  gs->gimple_eh_ctrl.region = region;
+}
+
+/* Return the number of labels associated with the switch statement GS.  */
+
+static inline unsigned
+gimple_switch_num_labels (const_gimple gs)
+{
+  unsigned num_ops;
+  GIMPLE_CHECK (gs, GIMPLE_SWITCH);
+  num_ops = gimple_num_ops (gs);
+  gcc_assert (num_ops > 1);
+  return num_ops - 1;
+}
+
+
+/* Set NLABELS to be the number of labels for the switch statement GS.  */
+
+static inline void
+gimple_switch_set_num_labels (gimple g, unsigned nlabels)
+{
+  GIMPLE_CHECK (g, GIMPLE_SWITCH);
+  gimple_set_num_ops (g, nlabels + 1);
+}
+
+
+/* Return the index variable used by the switch statement GS.  */
+
+static inline tree
+gimple_switch_index (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_SWITCH);
+  return gimple_op (gs, 0);
+}
+
+
+/* Return a pointer to the index variable for the switch statement GS.  */
+
+static inline tree *
+gimple_switch_index_ptr (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_SWITCH);
+  return gimple_op_ptr (gs, 0);
+}
+
+
+/* Set INDEX to be the index variable for switch statement GS.  */
+
+static inline void
+gimple_switch_set_index (gimple gs, tree index)
+{
+  GIMPLE_CHECK (gs, GIMPLE_SWITCH);
+  gcc_assert (SSA_VAR_P (index) || CONSTANT_CLASS_P (index));
+  gimple_set_op (gs, 0, index);
+}
+
+
+/* Return the label numbered INDEX.  The default label is 0, followed by any
+   labels in a switch statement.  */
+
+static inline tree
+gimple_switch_label (const_gimple gs, unsigned index)
+{
+  GIMPLE_CHECK (gs, GIMPLE_SWITCH);
+  gcc_assert (gimple_num_ops (gs) > index + 1);
+  return gimple_op (gs, index + 1);
+}
+
+/* Set the label number INDEX to LABEL.  0 is always the default label.  */
+
+static inline void
+gimple_switch_set_label (gimple gs, unsigned index, tree label)
+{
+  GIMPLE_CHECK (gs, GIMPLE_SWITCH);
+  gcc_assert (gimple_num_ops (gs) > index + 1);
+  gcc_assert (label == NULL_TREE || TREE_CODE (label) == CASE_LABEL_EXPR);
+  gimple_set_op (gs, index + 1, label);
+}
+
+/* Return the default label for a switch statement.  */
+
+static inline tree
+gimple_switch_default_label (const_gimple gs)
+{
+  return gimple_switch_label (gs, 0);
+}
+
+/* Set the default label for a switch statement.  */
+
+static inline void
+gimple_switch_set_default_label (gimple gs, tree label)
+{
+  gimple_switch_set_label (gs, 0, label);
+}
+
+/* Return true if GS is a GIMPLE_DEBUG statement.  */
+
+static inline bool
+is_gimple_debug (const_gimple gs)
+{
+  return gimple_code (gs) == GIMPLE_DEBUG;
+}
+
+/* Return true if S is a GIMPLE_DEBUG BIND statement.  */
+
+static inline bool
+gimple_debug_bind_p (const_gimple s)
+{
+  if (is_gimple_debug (s))
+    return s->gsbase.subcode == GIMPLE_DEBUG_BIND;
+
+  return false;
+}
+
+/* Return the variable bound in a GIMPLE_DEBUG bind statement.  */
+
+static inline tree
+gimple_debug_bind_get_var (gimple dbg)
+{
+  GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
+  gcc_assert (gimple_debug_bind_p (dbg));
+  return gimple_op (dbg, 0);
+}
+
+/* Return the value bound to the variable in a GIMPLE_DEBUG bind
+   statement.  */
+
+static inline tree
+gimple_debug_bind_get_value (gimple dbg)
+{
+  GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
+  gcc_assert (gimple_debug_bind_p (dbg));
+  return gimple_op (dbg, 1);
+}
+
+/* Return a pointer to the value bound to the variable in a
+   GIMPLE_DEBUG bind statement.  */
+
+static inline tree *
+gimple_debug_bind_get_value_ptr (gimple dbg)
+{
+  GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
+  gcc_assert (gimple_debug_bind_p (dbg));
+  return gimple_op_ptr (dbg, 1);
+}
+
+/* Set the variable bound in a GIMPLE_DEBUG bind statement.  */
+
+static inline void
+gimple_debug_bind_set_var (gimple dbg, tree var)
+{
+  GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
+  gcc_assert (gimple_debug_bind_p (dbg));
+  gimple_set_op (dbg, 0, var);
+}
+
+/* Set the value bound to the variable in a GIMPLE_DEBUG bind
+   statement.  */
+
+static inline void
+gimple_debug_bind_set_value (gimple dbg, tree value)
+{
+  GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
+  gcc_assert (gimple_debug_bind_p (dbg));
+  gimple_set_op (dbg, 1, value);
+}
+
+/* The second operand of a GIMPLE_DEBUG_BIND, when the value was
+   optimized away.  */
+#define GIMPLE_DEBUG_BIND_NOVALUE NULL_TREE /* error_mark_node */
+
+/* Remove the value bound to the variable in a GIMPLE_DEBUG bind
+   statement.  */
+
+static inline void
+gimple_debug_bind_reset_value (gimple dbg)
+{
+  GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
+  gcc_assert (gimple_debug_bind_p (dbg));
+  gimple_set_op (dbg, 1, GIMPLE_DEBUG_BIND_NOVALUE);
+}
+
+/* Return true if the GIMPLE_DEBUG bind statement is bound to a
+   value.  */
+
+static inline bool
+gimple_debug_bind_has_value_p (gimple dbg)
+{
+  GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
+  gcc_assert (gimple_debug_bind_p (dbg));
+  return gimple_op (dbg, 1) != GIMPLE_DEBUG_BIND_NOVALUE;
+}
+
+#undef GIMPLE_DEBUG_BIND_NOVALUE
+
+/* Return the body for the OMP statement GS.  */
+
+static inline gimple_seq
+gimple_omp_body (gimple gs)
+{
+  return gs->omp.body;
+}
+
+/* Set BODY to be the body for the OMP statement GS.  */
+
+static inline void
+gimple_omp_set_body (gimple gs, gimple_seq body)
+{
+  gs->omp.body = body;
+}
+
+
+/* Return the name associated with OMP_CRITICAL statement GS.  */
+
+static inline tree
+gimple_omp_critical_name (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_CRITICAL);
+  return gs->gimple_omp_critical.name;
+}
+
+
+/* Return a pointer to the name associated with OMP critical statement GS.  */
+
+static inline tree *
+gimple_omp_critical_name_ptr (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_CRITICAL);
+  return &gs->gimple_omp_critical.name;
+}
+
+
+/* Set NAME to be the name associated with OMP critical statement GS.  */
+
+static inline void
+gimple_omp_critical_set_name (gimple gs, tree name)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_CRITICAL);
+  gs->gimple_omp_critical.name = name;
+}
+
+
+/* Return the clauses associated with OMP_FOR GS.  */
+
+static inline tree
+gimple_omp_for_clauses (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
+  return gs->gimple_omp_for.clauses;
+}
+
+
+/* Return a pointer to the OMP_FOR GS.  */
+
+static inline tree *
+gimple_omp_for_clauses_ptr (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
+  return &gs->gimple_omp_for.clauses;
+}
+
+
+/* Set CLAUSES to be the list of clauses associated with OMP_FOR GS.  */
+
+static inline void
+gimple_omp_for_set_clauses (gimple gs, tree clauses)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
+  gs->gimple_omp_for.clauses = clauses;
+}
+
+
+/* Get the collapse count of OMP_FOR GS.  */
+
+static inline size_t
+gimple_omp_for_collapse (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
+  return gs->gimple_omp_for.collapse;
+}
+
+
+/* Return the index variable for OMP_FOR GS.  */
+
+static inline tree
+gimple_omp_for_index (const_gimple gs, size_t i)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
+  gcc_assert (i < gs->gimple_omp_for.collapse);
+  return gs->gimple_omp_for.iter[i].index;
+}
+
+
+/* Return a pointer to the index variable for OMP_FOR GS.  */
+
+static inline tree *
+gimple_omp_for_index_ptr (gimple gs, size_t i)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
+  gcc_assert (i < gs->gimple_omp_for.collapse);
+  return &gs->gimple_omp_for.iter[i].index;
+}
+
+
+/* Set INDEX to be the index variable for OMP_FOR GS.  */
+
+static inline void
+gimple_omp_for_set_index (gimple gs, size_t i, tree index)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
+  gcc_assert (i < gs->gimple_omp_for.collapse);
+  gs->gimple_omp_for.iter[i].index = index;
+}
+
+
+/* Return the initial value for OMP_FOR GS.  */
+
+static inline tree
+gimple_omp_for_initial (const_gimple gs, size_t i)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
+  gcc_assert (i < gs->gimple_omp_for.collapse);
+  return gs->gimple_omp_for.iter[i].initial;
+}
+
+
+/* Return a pointer to the initial value for OMP_FOR GS.  */
+
+static inline tree *
+gimple_omp_for_initial_ptr (gimple gs, size_t i)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
+  gcc_assert (i < gs->gimple_omp_for.collapse);
+  return &gs->gimple_omp_for.iter[i].initial;
+}
+
+
+/* Set INITIAL to be the initial value for OMP_FOR GS.  */
+
+static inline void
+gimple_omp_for_set_initial (gimple gs, size_t i, tree initial)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
+  gcc_assert (i < gs->gimple_omp_for.collapse);
+  gs->gimple_omp_for.iter[i].initial = initial;
+}
+
+
+/* Return the final value for OMP_FOR GS.  */
+
+static inline tree
+gimple_omp_for_final (const_gimple gs, size_t i)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
+  gcc_assert (i < gs->gimple_omp_for.collapse);
+  return gs->gimple_omp_for.iter[i].final;
+}
+
+
+/* Return a pointer to the final value for OMP_FOR GS.  */
+
+static inline tree *
+gimple_omp_for_final_ptr (gimple gs, size_t i)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
+  gcc_assert (i < gs->gimple_omp_for.collapse);
+  return &gs->gimple_omp_for.iter[i].final;
+}
+
+
+/* Set FINAL to be the final value for OMP_FOR GS.  */
+
+static inline void
+gimple_omp_for_set_final (gimple gs, size_t i, tree final)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
+  gcc_assert (i < gs->gimple_omp_for.collapse);
+  gs->gimple_omp_for.iter[i].final = final;
+}
+
+
+/* Return the increment value for OMP_FOR GS.  */
+
+static inline tree
+gimple_omp_for_incr (const_gimple gs, size_t i)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
+  gcc_assert (i < gs->gimple_omp_for.collapse);
+  return gs->gimple_omp_for.iter[i].incr;
+}
+
+
+/* Return a pointer to the increment value for OMP_FOR GS.  */
+
+static inline tree *
+gimple_omp_for_incr_ptr (gimple gs, size_t i)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
+  gcc_assert (i < gs->gimple_omp_for.collapse);
+  return &gs->gimple_omp_for.iter[i].incr;
+}
+
+
+/* Set INCR to be the increment value for OMP_FOR GS.  */
+
+static inline void
+gimple_omp_for_set_incr (gimple gs, size_t i, tree incr)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
+  gcc_assert (i < gs->gimple_omp_for.collapse);
+  gs->gimple_omp_for.iter[i].incr = incr;
+}
+
+
+/* Return the sequence of statements to execute before the OMP_FOR
+   statement GS starts.  */
+
+static inline gimple_seq
+gimple_omp_for_pre_body (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
+  return gs->gimple_omp_for.pre_body;
+}
+
+
+/* Set PRE_BODY to be the sequence of statements to execute before the
+   OMP_FOR statement GS starts.  */
+
+static inline void
+gimple_omp_for_set_pre_body (gimple gs, gimple_seq pre_body)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
+  gs->gimple_omp_for.pre_body = pre_body;
+}
+
+
+/* Return the clauses associated with OMP_PARALLEL GS.  */
+
+static inline tree
+gimple_omp_parallel_clauses (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_PARALLEL);
+  return gs->gimple_omp_parallel.clauses;
+}
+
+
+/* Return a pointer to the clauses associated with OMP_PARALLEL GS.  */
+
+static inline tree *
+gimple_omp_parallel_clauses_ptr (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_PARALLEL);
+  return &gs->gimple_omp_parallel.clauses;
+}
+
+
+/* Set CLAUSES to be the list of clauses associated with OMP_PARALLEL
+   GS.  */
+
+static inline void
+gimple_omp_parallel_set_clauses (gimple gs, tree clauses)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_PARALLEL);
+  gs->gimple_omp_parallel.clauses = clauses;
+}
+
+
+/* Return the child function used to hold the body of OMP_PARALLEL GS.  */
+
+static inline tree
+gimple_omp_parallel_child_fn (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_PARALLEL);
+  return gs->gimple_omp_parallel.child_fn;
+}
+
+/* Return a pointer to the child function used to hold the body of
+   OMP_PARALLEL GS.  */
+
+static inline tree *
+gimple_omp_parallel_child_fn_ptr (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_PARALLEL);
+  return &gs->gimple_omp_parallel.child_fn;
+}
+
+
+/* Set CHILD_FN to be the child function for OMP_PARALLEL GS.  */
+
+static inline void
+gimple_omp_parallel_set_child_fn (gimple gs, tree child_fn)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_PARALLEL);
+  gs->gimple_omp_parallel.child_fn = child_fn;
+}
+
+
+/* Return the artificial argument used to send variables and values
+   from the parent to the children threads in OMP_PARALLEL GS.  */
+
+static inline tree
+gimple_omp_parallel_data_arg (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_PARALLEL);
+  return gs->gimple_omp_parallel.data_arg;
+}
+
+
+/* Return a pointer to the data argument for OMP_PARALLEL GS.  */
+
+static inline tree *
+gimple_omp_parallel_data_arg_ptr (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_PARALLEL);
+  return &gs->gimple_omp_parallel.data_arg;
+}
+
+
+/* Set DATA_ARG to be the data argument for OMP_PARALLEL GS.  */
+
+static inline void
+gimple_omp_parallel_set_data_arg (gimple gs, tree data_arg)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_PARALLEL);
+  gs->gimple_omp_parallel.data_arg = data_arg;
+}
+
+
+/* Return the clauses associated with OMP_TASK GS.  */
+
+static inline tree
+gimple_omp_task_clauses (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
+  return gs->gimple_omp_parallel.clauses;
+}
+
+
+/* Return a pointer to the clauses associated with OMP_TASK GS.  */
+
+static inline tree *
+gimple_omp_task_clauses_ptr (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
+  return &gs->gimple_omp_parallel.clauses;
+}
+
+
+/* Set CLAUSES to be the list of clauses associated with OMP_TASK
+   GS.  */
+
+static inline void
+gimple_omp_task_set_clauses (gimple gs, tree clauses)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
+  gs->gimple_omp_parallel.clauses = clauses;
+}
+
+
+/* Return the child function used to hold the body of OMP_TASK GS.  */
+
+static inline tree
+gimple_omp_task_child_fn (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
+  return gs->gimple_omp_parallel.child_fn;
+}
+
+/* Return a pointer to the child function used to hold the body of
+   OMP_TASK GS.  */
+
+static inline tree *
+gimple_omp_task_child_fn_ptr (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
+  return &gs->gimple_omp_parallel.child_fn;
+}
+
+
+/* Set CHILD_FN to be the child function for OMP_TASK GS.  */
+
+static inline void
+gimple_omp_task_set_child_fn (gimple gs, tree child_fn)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
+  gs->gimple_omp_parallel.child_fn = child_fn;
+}
+
+
+/* Return the artificial argument used to send variables and values
+   from the parent to the children threads in OMP_TASK GS.  */
+
+static inline tree
+gimple_omp_task_data_arg (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
+  return gs->gimple_omp_parallel.data_arg;
+}
+
+
+/* Return a pointer to the data argument for OMP_TASK GS.  */
+
+static inline tree *
+gimple_omp_task_data_arg_ptr (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
+  return &gs->gimple_omp_parallel.data_arg;
+}
+
+
+/* Set DATA_ARG to be the data argument for OMP_TASK GS.  */
+
+static inline void
+gimple_omp_task_set_data_arg (gimple gs, tree data_arg)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
+  gs->gimple_omp_parallel.data_arg = data_arg;
+}
+
+
+/* Return the clauses associated with OMP_TASK GS.  */
+
+static inline tree
+gimple_omp_taskreg_clauses (const_gimple gs)
+{
+  if (gimple_code (gs) != GIMPLE_OMP_PARALLEL)
+    GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
+  return gs->gimple_omp_parallel.clauses;
+}
+
+
+/* Return a pointer to the clauses associated with OMP_TASK GS.  */
+
+static inline tree *
+gimple_omp_taskreg_clauses_ptr (gimple gs)
+{
+  if (gimple_code (gs) != GIMPLE_OMP_PARALLEL)
+    GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
+  return &gs->gimple_omp_parallel.clauses;
+}
+
+
+/* Set CLAUSES to be the list of clauses associated with OMP_TASK
+   GS.  */
+
+static inline void
+gimple_omp_taskreg_set_clauses (gimple gs, tree clauses)
+{
+  if (gimple_code (gs) != GIMPLE_OMP_PARALLEL)
+    GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
+  gs->gimple_omp_parallel.clauses = clauses;
+}
+
+
+/* Return the child function used to hold the body of OMP_TASK GS.  */
+
+static inline tree
+gimple_omp_taskreg_child_fn (const_gimple gs)
+{
+  if (gimple_code (gs) != GIMPLE_OMP_PARALLEL)
+    GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
+  return gs->gimple_omp_parallel.child_fn;
+}
+
+/* Return a pointer to the child function used to hold the body of
+   OMP_TASK GS.  */
+
+static inline tree *
+gimple_omp_taskreg_child_fn_ptr (gimple gs)
+{
+  if (gimple_code (gs) != GIMPLE_OMP_PARALLEL)
+    GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
+  return &gs->gimple_omp_parallel.child_fn;
+}
+
+
+/* Set CHILD_FN to be the child function for OMP_TASK GS.  */
+
+static inline void
+gimple_omp_taskreg_set_child_fn (gimple gs, tree child_fn)
+{
+  if (gimple_code (gs) != GIMPLE_OMP_PARALLEL)
+    GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
+  gs->gimple_omp_parallel.child_fn = child_fn;
+}
+
+
+/* Return the artificial argument used to send variables and values
+   from the parent to the children threads in OMP_TASK GS.  */
+
+static inline tree
+gimple_omp_taskreg_data_arg (const_gimple gs)
+{
+  if (gimple_code (gs) != GIMPLE_OMP_PARALLEL)
+    GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
+  return gs->gimple_omp_parallel.data_arg;
+}
+
+
+/* Return a pointer to the data argument for OMP_TASK GS.  */
+
+static inline tree *
+gimple_omp_taskreg_data_arg_ptr (gimple gs)
+{
+  if (gimple_code (gs) != GIMPLE_OMP_PARALLEL)
+    GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
+  return &gs->gimple_omp_parallel.data_arg;
+}
+
+
+/* Set DATA_ARG to be the data argument for OMP_TASK GS.  */
+
+static inline void
+gimple_omp_taskreg_set_data_arg (gimple gs, tree data_arg)
+{
+  if (gimple_code (gs) != GIMPLE_OMP_PARALLEL)
+    GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
+  gs->gimple_omp_parallel.data_arg = data_arg;
+}
+
+
+/* Return the copy function used to hold the body of OMP_TASK GS.  */
+
+static inline tree
+gimple_omp_task_copy_fn (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
+  return gs->gimple_omp_task.copy_fn;
+}
+
+/* Return a pointer to the copy function used to hold the body of
+   OMP_TASK GS.  */
+
+static inline tree *
+gimple_omp_task_copy_fn_ptr (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
+  return &gs->gimple_omp_task.copy_fn;
+}
+
+
+/* Set CHILD_FN to be the copy function for OMP_TASK GS.  */
+
+static inline void
+gimple_omp_task_set_copy_fn (gimple gs, tree copy_fn)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
+  gs->gimple_omp_task.copy_fn = copy_fn;
+}
+
+
+/* Return size of the data block in bytes in OMP_TASK GS.  */
+
+static inline tree
+gimple_omp_task_arg_size (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
+  return gs->gimple_omp_task.arg_size;
+}
+
+
+/* Return a pointer to the data block size for OMP_TASK GS.  */
+
+static inline tree *
+gimple_omp_task_arg_size_ptr (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
+  return &gs->gimple_omp_task.arg_size;
+}
+
+
+/* Set ARG_SIZE to be the data block size for OMP_TASK GS.  */
+
+static inline void
+gimple_omp_task_set_arg_size (gimple gs, tree arg_size)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
+  gs->gimple_omp_task.arg_size = arg_size;
+}
+
+
+/* Return align of the data block in bytes in OMP_TASK GS.  */
+
+static inline tree
+gimple_omp_task_arg_align (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
+  return gs->gimple_omp_task.arg_align;
+}
+
+
+/* Return a pointer to the data block align for OMP_TASK GS.  */
+
+static inline tree *
+gimple_omp_task_arg_align_ptr (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
+  return &gs->gimple_omp_task.arg_align;
+}
+
+
+/* Set ARG_SIZE to be the data block align for OMP_TASK GS.  */
+
+static inline void
+gimple_omp_task_set_arg_align (gimple gs, tree arg_align)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
+  gs->gimple_omp_task.arg_align = arg_align;
+}
+
+
+/* Return the clauses associated with OMP_SINGLE GS.  */
+
+static inline tree
+gimple_omp_single_clauses (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_SINGLE);
+  return gs->gimple_omp_single.clauses;
+}
+
+
+/* Return a pointer to the clauses associated with OMP_SINGLE GS.  */
+
+static inline tree *
+gimple_omp_single_clauses_ptr (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_SINGLE);
+  return &gs->gimple_omp_single.clauses;
+}
+
+
+/* Set CLAUSES to be the clauses associated with OMP_SINGLE GS.  */
+
+static inline void
+gimple_omp_single_set_clauses (gimple gs, tree clauses)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_SINGLE);
+  gs->gimple_omp_single.clauses = clauses;
+}
+
+
+/* Return the clauses associated with OMP_SECTIONS GS.  */
+
+static inline tree
+gimple_omp_sections_clauses (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_SECTIONS);
+  return gs->gimple_omp_sections.clauses;
+}
+
+
+/* Return a pointer to the clauses associated with OMP_SECTIONS GS.  */
+
+static inline tree *
+gimple_omp_sections_clauses_ptr (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_SECTIONS);
+  return &gs->gimple_omp_sections.clauses;
+}
+
+
+/* Set CLAUSES to be the set of clauses associated with OMP_SECTIONS
+   GS.  */
+
+static inline void
+gimple_omp_sections_set_clauses (gimple gs, tree clauses)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_SECTIONS);
+  gs->gimple_omp_sections.clauses = clauses;
+}
+
+
+/* Return the control variable associated with the GIMPLE_OMP_SECTIONS
+   in GS.  */
+
+static inline tree
+gimple_omp_sections_control (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_SECTIONS);
+  return gs->gimple_omp_sections.control;
+}
+
+
+/* Return a pointer to the clauses associated with the GIMPLE_OMP_SECTIONS
+   GS.  */
+
+static inline tree *
+gimple_omp_sections_control_ptr (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_SECTIONS);
+  return &gs->gimple_omp_sections.control;
+}
+
+
+/* Set CONTROL to be the set of clauses associated with the
+   GIMPLE_OMP_SECTIONS in GS.  */
+
+static inline void
+gimple_omp_sections_set_control (gimple gs, tree control)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_SECTIONS);
+  gs->gimple_omp_sections.control = control;
+}
+
+
+/* Set COND to be the condition code for OMP_FOR GS.  */
+
+static inline void
+gimple_omp_for_set_cond (gimple gs, size_t i, enum tree_code cond)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
+  gcc_assert (TREE_CODE_CLASS (cond) == tcc_comparison);
+  gcc_assert (i < gs->gimple_omp_for.collapse);
+  gs->gimple_omp_for.iter[i].cond = cond;
+}
+
+
+/* Return the condition code associated with OMP_FOR GS.  */
+
+static inline enum tree_code
+gimple_omp_for_cond (const_gimple gs, size_t i)
+{
+  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
+  gcc_assert (i < gs->gimple_omp_for.collapse);
+  return gs->gimple_omp_for.iter[i].cond;
+}
+
+
+/* Set the value being stored in an atomic store.  */
+
+static inline void
+gimple_omp_atomic_store_set_val (gimple g, tree val)
+{
+  GIMPLE_CHECK (g, GIMPLE_OMP_ATOMIC_STORE);
+  g->gimple_omp_atomic_store.val = val;
+}
+
+
+/* Return the value being stored in an atomic store.  */
+
+static inline tree
+gimple_omp_atomic_store_val (const_gimple g)
+{
+  GIMPLE_CHECK (g, GIMPLE_OMP_ATOMIC_STORE);
+  return g->gimple_omp_atomic_store.val;
+}
+
+
+/* Return a pointer to the value being stored in an atomic store.  */
+
+static inline tree *
+gimple_omp_atomic_store_val_ptr (gimple g)
+{
+  GIMPLE_CHECK (g, GIMPLE_OMP_ATOMIC_STORE);
+  return &g->gimple_omp_atomic_store.val;
+}
+
+
+/* Set the LHS of an atomic load.  */
+
+static inline void
+gimple_omp_atomic_load_set_lhs (gimple g, tree lhs)
+{
+  GIMPLE_CHECK (g, GIMPLE_OMP_ATOMIC_LOAD);
+  g->gimple_omp_atomic_load.lhs = lhs;
+}
+
+
+/* Get the LHS of an atomic load.  */
+
+static inline tree
+gimple_omp_atomic_load_lhs (const_gimple g)
+{
+  GIMPLE_CHECK (g, GIMPLE_OMP_ATOMIC_LOAD);
+  return g->gimple_omp_atomic_load.lhs;
+}
+
+
+/* Return a pointer to the LHS of an atomic load.  */
+
+static inline tree *
+gimple_omp_atomic_load_lhs_ptr (gimple g)
+{
+  GIMPLE_CHECK (g, GIMPLE_OMP_ATOMIC_LOAD);
+  return &g->gimple_omp_atomic_load.lhs;
+}
+
+
+/* Set the RHS of an atomic load.  */
+
+static inline void
+gimple_omp_atomic_load_set_rhs (gimple g, tree rhs)
+{
+  GIMPLE_CHECK (g, GIMPLE_OMP_ATOMIC_LOAD);
+  g->gimple_omp_atomic_load.rhs = rhs;
+}
+
+
+/* Get the RHS of an atomic load.  */
+
+static inline tree
+gimple_omp_atomic_load_rhs (const_gimple g)
+{
+  GIMPLE_CHECK (g, GIMPLE_OMP_ATOMIC_LOAD);
+  return g->gimple_omp_atomic_load.rhs;
+}
+
+
+/* Return a pointer to the RHS of an atomic load.  */
+
+static inline tree *
+gimple_omp_atomic_load_rhs_ptr (gimple g)
+{
+  GIMPLE_CHECK (g, GIMPLE_OMP_ATOMIC_LOAD);
+  return &g->gimple_omp_atomic_load.rhs;
+}
+
+
+/* Get the definition of the control variable in a GIMPLE_OMP_CONTINUE.  */
+
+static inline tree
+gimple_omp_continue_control_def (const_gimple g)
+{
+  GIMPLE_CHECK (g, GIMPLE_OMP_CONTINUE);
+  return g->gimple_omp_continue.control_def;
+}
+
+/* The same as above, but return the address.  */
+
+static inline tree *
+gimple_omp_continue_control_def_ptr (gimple g)
+{
+  GIMPLE_CHECK (g, GIMPLE_OMP_CONTINUE);
+  return &g->gimple_omp_continue.control_def;
+}
+
+/* Set the definition of the control variable in a GIMPLE_OMP_CONTINUE.  */
+
+static inline void
+gimple_omp_continue_set_control_def (gimple g, tree def)
+{
+  GIMPLE_CHECK (g, GIMPLE_OMP_CONTINUE);
+  g->gimple_omp_continue.control_def = def;
+}
+
+
+/* Get the use of the control variable in a GIMPLE_OMP_CONTINUE.  */
+
+static inline tree
+gimple_omp_continue_control_use (const_gimple g)
+{
+  GIMPLE_CHECK (g, GIMPLE_OMP_CONTINUE);
+  return g->gimple_omp_continue.control_use;
+}
+
+
+/* The same as above, but return the address.  */
+
+static inline tree *
+gimple_omp_continue_control_use_ptr (gimple g)
+{
+  GIMPLE_CHECK (g, GIMPLE_OMP_CONTINUE);
+  return &g->gimple_omp_continue.control_use;
+}
+
+
+/* Set the use of the control variable in a GIMPLE_OMP_CONTINUE.  */
+
+static inline void
+gimple_omp_continue_set_control_use (gimple g, tree use)
+{
+  GIMPLE_CHECK (g, GIMPLE_OMP_CONTINUE);
+  g->gimple_omp_continue.control_use = use;
+}
+
+
+/* Return a pointer to the return value for GIMPLE_RETURN GS.  */
+
+static inline tree *
+gimple_return_retval_ptr (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_RETURN);
+  gcc_assert (gimple_num_ops (gs) == 1);
+  return gimple_op_ptr (gs, 0);
+}
+
+/* Return the return value for GIMPLE_RETURN GS.  */
+
+static inline tree
+gimple_return_retval (const_gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_RETURN);
+  gcc_assert (gimple_num_ops (gs) == 1);
+  return gimple_op (gs, 0);
+}
+
+
+/* Set RETVAL to be the return value for GIMPLE_RETURN GS.  */
+
+static inline void
+gimple_return_set_retval (gimple gs, tree retval)
+{
+  GIMPLE_CHECK (gs, GIMPLE_RETURN);
+  gcc_assert (gimple_num_ops (gs) == 1);
+  gcc_assert (retval == NULL_TREE
+              || TREE_CODE (retval) == RESULT_DECL
+	      || is_gimple_val (retval));
+  gimple_set_op (gs, 0, retval);
+}
+
+
+/* Returns true when the gimple statment STMT is any of the OpenMP types.  */
+
+#define CASE_GIMPLE_OMP				\
+    case GIMPLE_OMP_PARALLEL:			\
+    case GIMPLE_OMP_TASK:			\
+    case GIMPLE_OMP_FOR:			\
+    case GIMPLE_OMP_SECTIONS:			\
+    case GIMPLE_OMP_SECTIONS_SWITCH:		\
+    case GIMPLE_OMP_SINGLE:			\
+    case GIMPLE_OMP_SECTION:			\
+    case GIMPLE_OMP_MASTER:			\
+    case GIMPLE_OMP_ORDERED:			\
+    case GIMPLE_OMP_CRITICAL:			\
+    case GIMPLE_OMP_RETURN:			\
+    case GIMPLE_OMP_ATOMIC_LOAD:		\
+    case GIMPLE_OMP_ATOMIC_STORE:		\
+    case GIMPLE_OMP_CONTINUE
+
+static inline bool
+is_gimple_omp (const_gimple stmt)
+{
+  switch (gimple_code (stmt))
+    {
+    CASE_GIMPLE_OMP:
+      return true;
+    default:
+      return false;
+    }
+}
+
+
+/* Returns TRUE if statement G is a GIMPLE_NOP.  */
+
+static inline bool
+gimple_nop_p (const_gimple g)
+{
+  return gimple_code (g) == GIMPLE_NOP;
+}
+
+
+/* Return true if GS is a GIMPLE_RESX.  */
+
+static inline bool
+is_gimple_resx (const_gimple gs)
+{
+  return gimple_code (gs) == GIMPLE_RESX;
+}
+
+/* Return the predictor of GIMPLE_PREDICT statement GS.  */
+
+static inline enum br_predictor
+gimple_predict_predictor (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_PREDICT);
+  return (enum br_predictor) (gs->gsbase.subcode & ~GF_PREDICT_TAKEN);
+}
+
+
+/* Set the predictor of GIMPLE_PREDICT statement GS to PREDICT.  */
+
+static inline void
+gimple_predict_set_predictor (gimple gs, enum br_predictor predictor)
+{
+  GIMPLE_CHECK (gs, GIMPLE_PREDICT);
+  gs->gsbase.subcode = (gs->gsbase.subcode & GF_PREDICT_TAKEN)
+		       | (unsigned) predictor;
+}
+
+
+/* Return the outcome of GIMPLE_PREDICT statement GS.  */
+
+static inline enum prediction
+gimple_predict_outcome (gimple gs)
+{
+  GIMPLE_CHECK (gs, GIMPLE_PREDICT);
+  return (gs->gsbase.subcode & GF_PREDICT_TAKEN) ? TAKEN : NOT_TAKEN;
+}
+
+
+/* Set the outcome of GIMPLE_PREDICT statement GS to OUTCOME.  */
+
+static inline void
+gimple_predict_set_outcome (gimple gs, enum prediction outcome)
+{
+  GIMPLE_CHECK (gs, GIMPLE_PREDICT);
+  if (outcome == TAKEN)
+    gs->gsbase.subcode |= GF_PREDICT_TAKEN;
+  else
+    gs->gsbase.subcode &= ~GF_PREDICT_TAKEN;
+}
+
+
+/* Return the type of the main expression computed by STMT.  Return
+   void_type_node if the statement computes nothing.  */
+
+static inline tree
+gimple_expr_type (const_gimple stmt)
+{
+  enum gimple_code code = gimple_code (stmt);
+
+  if (code == GIMPLE_ASSIGN || code == GIMPLE_CALL)
+    {
+      tree type;
+      /* In general we want to pass out a type that can be substituted
+         for both the RHS and the LHS types if there is a possibly
+	 useless conversion involved.  That means returning the
+	 original RHS type as far as we can reconstruct it.  */
+      if (code == GIMPLE_CALL)
+	type = gimple_call_return_type (stmt);
+      else
+	switch (gimple_assign_rhs_code (stmt))
+	  {
+	  case POINTER_PLUS_EXPR:
+	    type = TREE_TYPE (gimple_assign_rhs1 (stmt));
+	    break;
+
+	  default:
+	    /* As fallback use the type of the LHS.  */
+	    type = TREE_TYPE (gimple_get_lhs (stmt));
+	    break;
+	  }
+      return type;
+    }
+  else if (code == GIMPLE_COND)
+    return boolean_type_node;
+  else
+    return void_type_node;
+}
+
+
+/* Return a new iterator pointing to GIMPLE_SEQ's first statement.  */
+
+static inline gimple_stmt_iterator
+gsi_start (gimple_seq seq)
+{
+  gimple_stmt_iterator i;
+
+  i.ptr = gimple_seq_first (seq);
+  i.seq = seq;
+  i.bb = (i.ptr && i.ptr->stmt) ? gimple_bb (i.ptr->stmt) : NULL;
+
+  return i;
+}
+
+
+/* Return a new iterator pointing to the first statement in basic block BB.  */
+
+static inline gimple_stmt_iterator
+gsi_start_bb (basic_block bb)
+{
+  gimple_stmt_iterator i;
+  gimple_seq seq;
+
+  seq = bb_seq (bb);
+  i.ptr = gimple_seq_first (seq);
+  i.seq = seq;
+  i.bb = bb;
+
+  return i;
+}
+
+
+/* Return a new iterator initially pointing to GIMPLE_SEQ's last statement.  */
+
+static inline gimple_stmt_iterator
+gsi_last (gimple_seq seq)
+{
+  gimple_stmt_iterator i;
+
+  i.ptr = gimple_seq_last (seq);
+  i.seq = seq;
+  i.bb = (i.ptr && i.ptr->stmt) ? gimple_bb (i.ptr->stmt) : NULL;
+
+  return i;
+}
+
+
+/* Return a new iterator pointing to the last statement in basic block BB.  */
+
+static inline gimple_stmt_iterator
+gsi_last_bb (basic_block bb)
+{
+  gimple_stmt_iterator i;
+  gimple_seq seq;
+
+  seq = bb_seq (bb);
+  i.ptr = gimple_seq_last (seq);
+  i.seq = seq;
+  i.bb = bb;
+
+  return i;
+}
+
+
+/* Return true if I is at the end of its sequence.  */
+
+static inline bool
+gsi_end_p (gimple_stmt_iterator i)
+{
+  return i.ptr == NULL;
+}
+
+
+/* Return true if I is one statement before the end of its sequence.  */
+
+static inline bool
+gsi_one_before_end_p (gimple_stmt_iterator i)
+{
+  return i.ptr != NULL && i.ptr->next == NULL;
+}
+
+
+/* Advance the iterator to the next gimple statement.  */
+
+static inline void
+gsi_next (gimple_stmt_iterator *i)
+{
+  i->ptr = i->ptr->next;
+}
+
+/* Advance the iterator to the previous gimple statement.  */
+
+static inline void
+gsi_prev (gimple_stmt_iterator *i)
+{
+  i->ptr = i->ptr->prev;
+}
+
+/* Return the current stmt.  */
+
+static inline gimple
+gsi_stmt (gimple_stmt_iterator i)
+{
+  return i.ptr->stmt;
+}
+
+/* Return a block statement iterator that points to the first non-label
+   statement in block BB.  */
+
+static inline gimple_stmt_iterator
+gsi_after_labels (basic_block bb)
+{
+  gimple_stmt_iterator gsi = gsi_start_bb (bb);
+
+  while (!gsi_end_p (gsi) && gimple_code (gsi_stmt (gsi)) == GIMPLE_LABEL)
+    gsi_next (&gsi);
+
+  return gsi;
+}
+
+/* Advance the iterator to the next non-debug gimple statement.  */
+
+static inline void
+gsi_next_nondebug (gimple_stmt_iterator *i)
+{
+  do
+    {
+      gsi_next (i);
+    }
+  while (!gsi_end_p (*i) && is_gimple_debug (gsi_stmt (*i)));
+}
+
+/* Advance the iterator to the next non-debug gimple statement.  */
+
+static inline void
+gsi_prev_nondebug (gimple_stmt_iterator *i)
+{
+  do
+    {
+      gsi_prev (i);
+    }
+  while (!gsi_end_p (*i) && is_gimple_debug (gsi_stmt (*i)));
+}
+
+/* Return a new iterator pointing to the first non-debug statement in
+   basic block BB.  */
+
+static inline gimple_stmt_iterator
+gsi_start_nondebug_bb (basic_block bb)
+{
+  gimple_stmt_iterator i = gsi_start_bb (bb);
+
+  if (!gsi_end_p (i) && is_gimple_debug (gsi_stmt (i)))
+    gsi_next_nondebug (&i);
+
+  return i;
+}
+
+/* Return a new iterator pointing to the last non-debug statement in
+   basic block BB.  */
+
+static inline gimple_stmt_iterator
+gsi_last_nondebug_bb (basic_block bb)
+{
+  gimple_stmt_iterator i = gsi_last_bb (bb);
+
+  if (!gsi_end_p (i) && is_gimple_debug (gsi_stmt (i)))
+    gsi_prev_nondebug (&i);
+
+  return i;
+}
+
+/* Return a pointer to the current stmt.
+
+  NOTE: You may want to use gsi_replace on the iterator itself,
+  as this performs additional bookkeeping that will not be done
+  if you simply assign through a pointer returned by gsi_stmt_ptr.  */
+
+static inline gimple *
+gsi_stmt_ptr (gimple_stmt_iterator *i)
+{
+  return &i->ptr->stmt;
+}
+
+
+/* Return the basic block associated with this iterator.  */
+
+static inline basic_block
+gsi_bb (gimple_stmt_iterator i)
+{
+  return i.bb;
+}
+
+
+/* Return the sequence associated with this iterator.  */
+
+static inline gimple_seq
+gsi_seq (gimple_stmt_iterator i)
+{
+  return i.seq;
+}
+
+
+enum gsi_iterator_update
+{
+  GSI_NEW_STMT,		/* Only valid when single statement is added, move
+			   iterator to it.  */
+  GSI_SAME_STMT,	/* Leave the iterator at the same statement.  */
+  GSI_CONTINUE_LINKING	/* Move iterator to whatever position is suitable
+			   for linking other statements in the same
+			   direction.  */
+};
+
+/* In gimple-iterator.c  */
+gimple_stmt_iterator gsi_start_phis (basic_block);
+gimple_seq gsi_split_seq_after (gimple_stmt_iterator);
+gimple_seq gsi_split_seq_before (gimple_stmt_iterator *);
+void gsi_replace (gimple_stmt_iterator *, gimple, bool);
+void gsi_insert_before (gimple_stmt_iterator *, gimple,
+			enum gsi_iterator_update);
+void gsi_insert_before_without_update (gimple_stmt_iterator *, gimple,
+                                       enum gsi_iterator_update);
+void gsi_insert_seq_before (gimple_stmt_iterator *, gimple_seq,
+                            enum gsi_iterator_update);
+void gsi_insert_seq_before_without_update (gimple_stmt_iterator *, gimple_seq,
+                                           enum gsi_iterator_update);
+void gsi_insert_after (gimple_stmt_iterator *, gimple,
+		       enum gsi_iterator_update);
+void gsi_insert_after_without_update (gimple_stmt_iterator *, gimple,
+                                      enum gsi_iterator_update);
+void gsi_insert_seq_after (gimple_stmt_iterator *, gimple_seq,
+			   enum gsi_iterator_update);
+void gsi_insert_seq_after_without_update (gimple_stmt_iterator *, gimple_seq,
+                                          enum gsi_iterator_update);
+void gsi_remove (gimple_stmt_iterator *, bool);
+gimple_stmt_iterator gsi_for_stmt (gimple);
+void gsi_move_after (gimple_stmt_iterator *, gimple_stmt_iterator *);
+void gsi_move_before (gimple_stmt_iterator *, gimple_stmt_iterator *);
+void gsi_move_to_bb_end (gimple_stmt_iterator *, struct basic_block_def *);
+void gsi_insert_on_edge (edge, gimple);
+void gsi_insert_seq_on_edge (edge, gimple_seq);
+basic_block gsi_insert_on_edge_immediate (edge, gimple);
+basic_block gsi_insert_seq_on_edge_immediate (edge, gimple_seq);
+void gsi_commit_one_edge_insert (edge, basic_block *);
+void gsi_commit_edge_inserts (void);
+gimple gimple_call_copy_skip_args (gimple, bitmap);
+
+
+/* Convenience routines to walk all statements of a gimple function.
+   Note that this is useful exclusively before the code is converted
+   into SSA form.  Once the program is in SSA form, the standard
+   operand interface should be used to analyze/modify statements.  */
+struct walk_stmt_info
+{
+  /* Points to the current statement being walked.  */
+  gimple_stmt_iterator gsi;
+
+  /* Additional data that the callback functions may want to carry
+     through the recursion.  */
+  void *info;
+
+  /* Pointer map used to mark visited tree nodes when calling
+     walk_tree on each operand.  If set to NULL, duplicate tree nodes
+     will be visited more than once.  */
+  struct pointer_set_t *pset;
+
+  /* Indicates whether the operand being examined may be replaced
+     with something that matches is_gimple_val (if true) or something
+     slightly more complicated (if false).  "Something" technically
+     means the common subset of is_gimple_lvalue and is_gimple_rhs,
+     but we never try to form anything more complicated than that, so
+     we don't bother checking.
+
+     Also note that CALLBACK should update this flag while walking the
+     sub-expressions of a statement.  For instance, when walking the
+     statement 'foo (&var)', the flag VAL_ONLY will initially be set
+     to true, however, when walking &var, the operand of that
+     ADDR_EXPR does not need to be a GIMPLE value.  */
+  bool val_only;
+
+  /* True if we are currently walking the LHS of an assignment.  */
+  bool is_lhs;
+
+  /* Optional.  Set to true by the callback functions if they made any
+     changes.  */
+  bool changed;
+
+  /* True if we're interested in location information.  */
+  bool want_locations;
+
+  /* Operand returned by the callbacks.  This is set when calling
+     walk_gimple_seq.  If the walk_stmt_fn or walk_tree_fn callback
+     returns non-NULL, this field will contain the tree returned by
+     the last callback.  */
+  tree callback_result;
+};
+
+/* Callback for walk_gimple_stmt.  Called for every statement found
+   during traversal.  The first argument points to the statement to
+   walk.  The second argument is a flag that the callback sets to
+   'true' if it the callback handled all the operands and
+   sub-statements of the statement (the default value of this flag is
+   'false').  The third argument is an anonymous pointer to data
+   to be used by the callback.  */
+typedef tree (*walk_stmt_fn) (gimple_stmt_iterator *, bool *,
+			      struct walk_stmt_info *);
+
+gimple walk_gimple_seq (gimple_seq, walk_stmt_fn, walk_tree_fn,
+		        struct walk_stmt_info *);
+tree walk_gimple_stmt (gimple_stmt_iterator *, walk_stmt_fn, walk_tree_fn,
+		       struct walk_stmt_info *);
+tree walk_gimple_op (gimple, walk_tree_fn, struct walk_stmt_info *);
+
+#ifdef GATHER_STATISTICS
+/* Enum and arrays used for allocation stats.  Keep in sync with
+   gimple.c:gimple_alloc_kind_names.  */
+enum gimple_alloc_kind
+{
+  gimple_alloc_kind_assign,	/* Assignments.  */
+  gimple_alloc_kind_phi,	/* PHI nodes.  */
+  gimple_alloc_kind_cond,	/* Conditionals.  */
+  gimple_alloc_kind_seq,	/* Sequences.  */
+  gimple_alloc_kind_rest,	/* Everything else.  */
+  gimple_alloc_kind_all
+};
+
+extern int gimple_alloc_counts[];
+extern int gimple_alloc_sizes[];
+
+/* Return the allocation kind for a given stmt CODE.  */
+static inline enum gimple_alloc_kind
+gimple_alloc_kind (enum gimple_code code)
+{
+  switch (code)
+    {
+      case GIMPLE_ASSIGN:
+	return gimple_alloc_kind_assign;
+      case GIMPLE_PHI:
+	return gimple_alloc_kind_phi;
+      case GIMPLE_COND:
+	return gimple_alloc_kind_cond;
+      default:
+	return gimple_alloc_kind_rest;
+    }
+}
+#endif /* GATHER_STATISTICS */
+
+extern void dump_gimple_statistics (void);
+
+#endif  /* GCC_GIMPLE_H */