--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/ext/sve-sizeless-2.C	Thu Feb 13 11:34:05 2020 +0900
@@ -0,0 +1,420 @@
+// { dg-do compile { target aarch64*-*-* } }
+// { dg-options "-Wclass-memaccess -msve-vector-bits=256" }
+
+#pragma GCC target "+sve"
+
+typedef __SIZE_TYPE__ size_t;
+inline void *operator new (size_t, void *__p) throw() { return __p; }
+
+#include <arm_sve.h>
+
+typedef signed char int8x32_t __attribute__((__vector_size__ (32)));
+
+// Sizeless objects with global scope.
+
+svint8_t global_sve_sc; // { dg-error {SVE type 'svint8_t' does not have a fixed size} }
+static svint8_t local_sve_sc; // { dg-error {SVE type 'svint8_t' does not have a fixed size} }
+extern svint8_t extern_sve_sc; // { dg-error {SVE type 'svint8_t' does not have a fixed size} }
+__thread svint8_t tls_sve_sc; // { dg-error {variables of type 'svint8_t' cannot have thread-local storage duration} }
+
+// Sizeless arrays.
+
+typedef svint8_t array_type[2]; // { dg-error {array elements cannot have SVE type 'svint8_t'} }
+extern svint8_t extern_array[]; // { dg-error {array elements cannot have SVE type 'svint8_t'} }
+
+// Sizeless member variables.
+
+struct struct1 {
+  svint8_t a; // { dg-error {member variables cannot have SVE type 'svint8_t'} }
+};
+
+union union1 {
+  svint8_t a; // { dg-error {member variables cannot have SVE type 'svint8_t'} }
+};
+
+#if __cplusplus >= 201103L
+struct static_sve_sc {
+  static svint8_t sve_sc1 = {}; // { dg-error {SVE type 'svint8_t' does not have a fixed size} "" { target c++11 } }
+};
+#endif
+
+// Sizeless member variables in templated structures.
+
+template<typename T>
+struct templated_struct1 {
+  svint8_t a; // { dg-error {member variables cannot have SVE type 'svint8_t'} }
+};
+
+template<typename T>
+struct templated_struct2 {
+  T a; // { dg-error {member variables cannot have SVE type '(svint8_t|__SVInt8_t)'} }
+};
+
+template class templated_struct2<svint8_t>;
+
+template<typename T>
+struct templated_struct3 {
+  T &a;
+};
+
+template class templated_struct3<svint8_t>;
+
+#if __cplusplus >= 201103L
+template<typename T>
+struct templated_struct4 {
+  static T a; // { dg-error {SVE type '(svint8_t|__SVInt8_t)' does not have a fixed size} "" { target c++11 } }
+  static T b = {}; // { dg-error {SVE type '(svint8_t|__SVInt8_t)' does not have a fixed size} "" { target c++11 } }
+};
+
+template class templated_struct4<svint8_t>;
+#endif
+
+template<typename T> struct templated_struct5 : T {}; // { dg-error {base type '[^']*' fails to be a struct or class type} }
+template class templated_struct5<svint8_t>;
+
+#if __cplusplus >= 201103L
+template<int N> using typedef_sizeless1 = svint8_t;
+template<int N> using typedef_sizeless1 = svint8_t;
+template<typename T> using array = T[2];
+#endif
+
+// Pointers to sizeless types.
+
+svint8_t *global_sve_sc_ptr;
+
+// Sizeless arguments and return values.
+
+void ext_consume_sve_sc (svint8_t);
+void ext_consume_const_int_ref (const int &);
+void ext_consume_varargs (int, ...);
+svint8_t ext_produce_sve_sc ();
+
+// Sizeless types in throw specifications.
+
+#if __cplusplus < 201103L
+void thrower1 () throw (svint8_t); // { dg-error {cannot throw or catch SVE type 'svint8_t'} "" { target c++98_only } }
+void thrower2 () throw (svint8_t); // { dg-error {cannot throw or catch SVE type 'svint8_t'} "" { target c++98_only } }
+void thrower3 () throw (svint8_t); // { dg-error {cannot throw or catch SVE type 'svint8_t'} "" { target c++98_only } }
+#endif
+
+// Main tests for statements and expressions.
+
+void
+statements (int n)
+{
+  // Local declarations.
+
+  svint8_t sve_sc1, sve_sc2;
+  volatile svint8_t volatile_sve_sc1;
+  int8x32_t gnu_sc1;
+  svint16_t sve_sh1;
+
+  // Layout queries.
+
+  sizeof (svint8_t); // { dg-error {SVE type 'svint8_t' does not have a fixed size} }
+  sizeof (sve_sc1); // { dg-error {SVE type 'svint8_t' does not have a fixed size} }
+  sizeof (ext_produce_sve_sc ()); // { dg-error {SVE type 'svint8_t' does not have a fixed size} }
+  __alignof (svint8_t); // { dg-error {SVE type 'svint8_t' does not have a defined alignment} }
+  __alignof (sve_sc1); // { dg-error {SVE type 'svint8_t' does not have a defined alignment} }
+  __alignof (ext_produce_sve_sc ()); // { dg-error {SVE type 'svint8_t' does not have a defined alignment} }
+
+#if __cplusplus >= 201103L
+  array<svint8_t> foo = {}; // { dg-error {array elements cannot have SVE type '(svint8_t|__SVInt8_t)'} "" { target c++11 } }
+#endif
+
+  // Initialization.
+
+  int init_int1 = sve_sc1; // { dg-error {cannot convert 'svint8_t' to 'int' in initialization} }
+  int init_int2 = { sve_sc1 }; // { dg-error {cannot convert 'svint8_t' to 'int' in initialization} }
+
+  svint8_t init_sve_sc1 (sve_sc1);
+  svint8_t init_sve_sc2 (sve_sh1); // { dg-error {cannot convert 'svint16_t' to 'svint8_t'} }
+  svint8_t init_sve_sc3 = sve_sc1;
+  svint8_t init_sve_sc4 = sve_sh1; // { dg-error {cannot convert 'svint16_t' to 'svint8_t'} }
+  svint8_t init_sve_sc5 = {};
+  svint8_t init_sve_sc6 = { sve_sc1 };
+  svint8_t init_sve_sc7 = { sve_sh1 }; // { dg-error {cannot convert 'svint16_t' to 'svint8_t'} }
+
+  // Constructor calls.
+
+  (0, svint8_t ());
+
+  // Lvalue reference binding
+
+  svint8_t &lvalue_ref_sve_sc1 = sve_sc1;
+  svint8_t &lvalue_ref_sve_sc2 = ext_produce_sve_sc (); // { dg-error {cannot bind non-const lvalue reference of type 'svint8_t&' to an rvalue of type 'svint8_t'} }
+  svint8_t &lvalue_ref_sve_sc3 = sve_sh1; // { dg-error {invalid initialization of reference of type 'svint8_t&' from expression of type 'svint16_t'} }
+
+  const svint8_t &const_lvalue_ref_sve_sc1 = sve_sc1;
+  const svint8_t &const_lvalue_ref_sve_sc2 = ext_produce_sve_sc ();
+  const svint8_t &const_lvalue_ref_sve_sc3 = sve_sh1; // { dg-error {invalid initialization of reference of type 'const svint8_t&' from expression of type 'svint16_t'} }
+
+  // Compound literals.
+
+  (int) { sve_sc1 }; // { dg-error {cannot convert 'svint8_t' to 'int' in initialization} }
+
+  // Arrays.
+
+  svint8_t array[2]; // { dg-error {array elements cannot have SVE type 'svint8_t'} }
+  svint8_t zero_length_array[0]; // { dg-error {array elements cannot have SVE type 'svint8_t'} }
+  svint8_t empty_init_array[] = {}; // { dg-error {array elements cannot have SVE type 'svint8_t'} }
+
+  // Assignment.
+
+  n = sve_sc1; // { dg-error {cannot convert 'svint8_t' to 'int' in assignment} }
+
+  sve_sc1 = 0; // { dg-error {cannot convert 'int' to 'svint8_t' in assignment} }
+  sve_sc1 = sve_sc1;
+  sve_sc1 = gnu_sc1;
+  gnu_sc1 = sve_sc1;
+  sve_sc1 = sve_sh1; // { dg-error {cannot convert 'svint16_t' to 'svint8_t'} }
+
+  // Casting.
+
+  (void) sve_sc1;
+  (void) volatile_sve_sc1;
+  (void) *&volatile_sve_sc1;
+
+  // Addressing and dereferencing.
+
+  svint8_t *sve_sc_ptr = &sve_sc1;
+  int8x32_t *gnu_sc_ptr = &gnu_sc1;
+  sve_sc_ptr = (svint16_t *) 0; // { dg-error {cannot convert 'svint16_t\*' to 'svint8_t\*' in assignment} }
+
+  // Pointer assignment.
+
+  gnu_sc_ptr = sve_sc_ptr; // { dg-error {invalid conversion from 'svint8_t\*' to 'int8x32_t\*'} }
+  sve_sc_ptr = gnu_sc_ptr; // { dg-error {invalid conversion from 'int8x32_t\*'[^\n]* to 'svint8_t\*'} }
+
+  // Pointer arithmetic.
+
+  ++sve_sc_ptr; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+  --sve_sc_ptr; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+  sve_sc_ptr++; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+  sve_sc_ptr--; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+  sve_sc_ptr += 0; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+  sve_sc_ptr += 1; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+  sve_sc_ptr -= 0; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+  sve_sc_ptr -= 1; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+  sve_sc_ptr - sve_sc_ptr; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+  gnu_sc_ptr - sve_sc_ptr; // { dg-error {invalid operands of types 'int8x32_t\*'[^\n]* and 'svint8_t\*' to binary 'operator-'} }
+  sve_sc_ptr - gnu_sc_ptr; // { dg-error {invalid operands of types 'svint8_t\*' and 'int8x32_t\*'[^\n]* to binary 'operator-'} }
+  sve_sc1 = sve_sc_ptr[0]; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+  sve_sc1 = sve_sc_ptr[1]; // { dg-error {arithmetic on pointer to SVE type 'svint8_t'} }
+
+  // Pointer comparison.
+
+  sve_sc_ptr == &sve_sc1;
+  sve_sc_ptr != &sve_sc1;
+  sve_sc_ptr < &sve_sc1;
+  sve_sc_ptr <= &sve_sc1;
+  sve_sc_ptr > &sve_sc1;
+  sve_sc_ptr >= &sve_sc1;
+  gnu_sc_ptr == sve_sc_ptr; // { dg-error {comparison between distinct pointer types [^\n]*lacks a cast} }
+  gnu_sc_ptr != sve_sc_ptr; // { dg-error {comparison between distinct pointer types [^\n]*lacks a cast} }
+  gnu_sc_ptr < sve_sc_ptr; // { dg-error {comparison between distinct pointer types [^\n]*lacks a cast} }
+  gnu_sc_ptr <= sve_sc_ptr; // { dg-error {comparison between distinct pointer types [^\n]*lacks a cast} }
+  gnu_sc_ptr > sve_sc_ptr; // { dg-error {comparison between distinct pointer types [^\n]*lacks a cast} }
+  gnu_sc_ptr >= sve_sc_ptr; // { dg-error {comparison between distinct pointer types [^\n]*lacks a cast} }
+  sve_sc_ptr == gnu_sc_ptr; // { dg-error {comparison between distinct pointer types [^\n]*lacks a cast} }
+  sve_sc_ptr != gnu_sc_ptr; // { dg-error {comparison between distinct pointer types [^\n]*lacks a cast} }
+  sve_sc_ptr < gnu_sc_ptr; // { dg-error {comparison between distinct pointer types [^\n]*lacks a cast} }
+  sve_sc_ptr <= gnu_sc_ptr; // { dg-error {comparison between distinct pointer types [^\n]*lacks a cast} }
+  sve_sc_ptr > gnu_sc_ptr; // { dg-error {comparison between distinct pointer types [^\n]*lacks a cast} }
+  sve_sc_ptr >= gnu_sc_ptr; // { dg-error {comparison between distinct pointer types [^\n]*lacks a cast} }
+
+  // New and delete.
+
+  new svint8_t; // { dg-error {cannot allocate objects with SVE type 'svint8_t'} }
+  new svint8_t (); // { dg-error {cannot allocate objects with SVE type 'svint8_t'} }
+
+  new (global_sve_sc_ptr) svint8_t; // { dg-error {cannot allocate objects with SVE type 'svint8_t'} }
+  new (global_sve_sc_ptr) svint8_t (); // { dg-error {cannot allocate objects with SVE type 'svint8_t'} }
+
+  sve_sc1.~svint8_t(); // { dg-error {expected class-name before '\(' token} }
+  delete sve_sc_ptr; // { dg-error {cannot delete objects with SVE type '(svint8_t|__SVInt8_t)'} }
+  delete[] sve_sc_ptr; // { dg-error {cannot delete objects with SVE type 'svint8_t'} }
+
+  // Conditional expressions.
+
+  0 ? sve_sc1 : sve_sc1;
+  0 ? sve_sc1 : sve_sh1; // { dg-error {different types 'svint8_t' and 'svint16_t'} }
+  0 ? sve_sc1 : 0; // { dg-error {different types 'svint8_t' and 'int'} }
+  0 ? 0 : sve_sc1; // { dg-error {different types 'int' and 'svint8_t'} }
+  0 ? sve_sc1 : sve_sc1;
+  0 ? sve_sc_ptr : sve_sc_ptr;
+  0 ? sve_sc_ptr : gnu_sc_ptr; // { dg-error {conditional expression between distinct pointer types [^\n]*lacks a cast} }
+  0 ? gnu_sc_ptr : sve_sc_ptr; // { dg-error {conditional expression between distinct pointer types [^\n]*lacks a cast} }
+
+  // Function arguments.
+
+  ext_consume_sve_sc (sve_sc1);
+  ext_consume_sve_sc (sve_sh1); // { dg-error {cannot convert 'svint16_t' to 'svint8_t'} }
+  ext_consume_const_int_ref (sve_sc1); // { dg-error {invalid initialization of reference of type 'const int&' from expression of type 'svint8_t'} }
+  ext_consume_varargs (sve_sc1); // { dg-error {cannot convert 'svint8_t' to 'int'} }
+  ext_consume_varargs (1, sve_sc1);
+
+  // Function returns.
+
+  ext_produce_sve_sc ();
+  sve_sc1 = ext_produce_sve_sc ();
+  sve_sh1 = ext_produce_sve_sc (); // { dg-error {cannot convert 'svint8_t' to 'svint16_t' in assignment} }
+
+  // Auto
+
+#if __cplusplus >= 201103L
+  auto auto_sve_sc1 = sve_sc1;
+  auto auto_sve_sc1_return = ext_produce_sve_sc ();
+#endif
+
+  // Varargs processing.
+
+  __builtin_va_list valist;
+  __builtin_va_arg (valist, svint8_t);
+
+  // Other built-ins
+
+  __builtin_launder (sve_sc1); // { dg-error {non-pointer argument to '__builtin_launder'} }
+  __builtin_memcpy (&sve_sc1, &sve_sc2, 2);
+
+  // Lambdas
+
+#if __cplusplus >= 201103L
+  [sve_sc1] () {}; // { dg-error {capture by copy of SVE type 'svint8_t'} "" { target c++11 } }
+  [=] () { &sve_sc1; }; // { dg-error {capture by copy of SVE type 'svint8_t'} "" { target c++11 } }
+  [&sve_sc1] () { sve_sc1 = sve_sc2; }; // { dg-error {'sve_sc2' is not captured} "" { target c++11 } }
+  [&sve_sc1, &sve_sc2] () { sve_sc1 = sve_sc2; };
+  [&] () { sve_sc1 = sve_sc2; };
+  [] () { return ext_produce_sve_sc (); } ();
+#endif
+
+  // Exceptions
+
+  throw svint8_t (); // { dg-error {cannot throw or catch SVE type 'svint8_t'} }
+  try {} catch (svint8_t x) {} // { dg-error {cannot throw or catch SVE type 'svint8_t'} }
+  try {} catch (svint8_t &x) {} // { dg-error {cannot throw or catch SVE type 'svint8_t'} }
+  try {} catch (svint8_t *x) {}
+#if __cplusplus < 201103L
+  thrower2 ();
+#endif
+
+  // Use in traits.  Doesn't use static_assert so that tests work with
+  // earlier -std=s.
+
+  { typedef int f[__has_nothrow_assign (svint8_t) ? 1 : -1]; }
+  { typedef int f[__has_trivial_assign (svint8_t) ? 1 : -1]; }
+  { typedef int f[__has_nothrow_constructor (svint8_t) ? 1 : -1]; }
+  { typedef int f[__has_trivial_constructor (svint8_t) ? 1 : -1]; }
+  { typedef int f[__has_nothrow_copy (svint8_t) ? 1 : -1]; }
+  { typedef int f[__has_trivial_copy (svint8_t) ? 1 : -1]; }
+  { typedef int f[__has_trivial_destructor (svint8_t) ? 1 : -1]; }
+  { typedef int f[__has_unique_object_representations (svint8_t) ? 1 : -1]; }
+  { typedef int f[!__has_virtual_destructor (svint8_t) ? 1 : -1]; }
+  { typedef int f[!__is_abstract (svint8_t) ? 1 : -1]; }
+  { typedef int f[!__is_aggregate (svint8_t) ? 1 : -1]; }
+  { typedef int f[!__is_base_of (svint8_t, svint8_t) ? 1 : -1]; }
+  { typedef int f[!__is_base_of (svint8_t, svint16_t) ? 1 : -1]; }
+  { typedef int f[!__is_class (svint8_t) ? 1 : -1]; }
+  { typedef int f[!__is_empty (svint8_t) ? 1 : -1]; }
+  { typedef int f[!__is_enum (svint8_t) ? 1 : -1]; }
+  { typedef int f[!__is_final (svint8_t) ? 1 : -1]; }
+  { typedef int f[__is_pod (svint8_t) ? 1 : -1]; }
+  { typedef int f[!__is_polymorphic (svint8_t) ? 1 : -1]; }
+  { typedef int f[__is_same_as (svint8_t, svint8_t) ? 1 : -1]; }
+  { typedef int f[!__is_same_as (svint8_t, int8x32_t) ? 1 : -1]; }
+  { typedef int f[!__is_same_as (int8x32_t, svint8_t) ? 1 : -1]; }
+  { typedef int f[__is_same_as (svint8_t *, svint8_t *) ? 1 : -1]; }
+  { typedef int f[!__is_same_as (svint8_t *, int8x32_t *) ? 1 : -1]; }
+  { typedef int f[!__is_same_as (int8x32_t *, svint8_t *) ? 1 : -1]; }
+  { typedef int f[!__is_same_as (svint8_t, int) ? 1 : -1]; }
+  { typedef int f[!__is_same_as (svint8_t, svint16_t) ? 1 : -1]; }
+  { typedef int f[__is_trivial (svint8_t) ? 1 : -1]; }
+  { typedef int f[!__is_union (svint8_t) ? 1 : -1]; }
+  { typedef int f[__is_trivially_copyable (svint8_t) ? 1 : -1]; }
+  /* The intention is that svint8_t should behave like int8x32_t here.  If the behavior
+     for int8x32_t changes then the behavior for svint8_t should change in the same
+     way.  */
+  { typedef int f[!__is_trivially_assignable (int8x32_t, int8x32_t) ? 1 : -1]; }
+  { typedef int f[!__is_trivially_assignable (svint8_t, svint8_t) ? 1 : -1]; }
+  { typedef int f[!__is_trivially_assignable (svint8_t, int8x32_t) ? 1 : -1]; }
+  { typedef int f[!__is_trivially_assignable (int8x32_t, svint8_t) ? 1 : -1]; }
+  { typedef int f[!__is_trivially_assignable (svint8_t, int) ? 1 : -1]; }
+  { typedef int f[!__is_trivially_assignable (svint8_t, svint16_t) ? 1 : -1]; }
+  { typedef int f[!__is_assignable (int8x32_t, int8x32_t) ? 1 : -1]; }
+  { typedef int f[!__is_assignable (svint8_t, svint8_t) ? 1 : -1]; }
+  { typedef int f[!__is_assignable (svint8_t, int8x32_t) ? 1 : -1]; }
+  { typedef int f[!__is_assignable (int8x32_t, svint8_t) ? 1 : -1]; }
+  { typedef int f[!__is_assignable (svint8_t, int) ? 1 : -1]; }
+  { typedef int f[!__is_assignable (svint8_t, svint16_t) ? 1 : -1]; }
+  { typedef int f[__is_trivially_constructible (svint8_t) ? 1 : -1]; }
+  { typedef int f[__is_trivially_constructible (int8x32_t, int8x32_t) ? 1 : -1]; }
+  { typedef int f[__is_trivially_constructible (svint8_t, svint8_t) ? 1 : -1]; }
+  { typedef int f[__is_trivially_constructible (svint8_t, int8x32_t) ? 1 : -1]; }
+  { typedef int f[__is_trivially_constructible (int8x32_t, svint8_t) ? 1 : -1]; }
+  { typedef int f[!__is_trivially_constructible (svint8_t, int) ? 1 : -1]; }
+  { typedef int f[!__is_trivially_constructible (svint8_t, svint16_t) ? 1 : -1]; }
+  { typedef int f[__is_constructible (svint8_t) ? 1 : -1]; }
+  { typedef int f[__is_constructible (int8x32_t, int8x32_t) ? 1 : -1]; }
+  { typedef int f[__is_constructible (svint8_t, svint8_t) ? 1 : -1]; }
+  { typedef int f[__is_constructible (svint8_t, int8x32_t) ? 1 : -1]; }
+  { typedef int f[__is_constructible (int8x32_t, svint8_t) ? 1 : -1]; }
+  { typedef int f[!__is_constructible (svint8_t, int) ? 1 : -1]; }
+  { typedef int f[!__is_constructible (svint8_t, svint16_t) ? 1 : -1]; }
+}
+
+// Function parameters in definitions.
+
+void
+unnamed_st1 (svint8_t)
+{
+}
+
+void
+named_st1 (svint8_t param1)
+{
+  svint8_t sve_sc1 = param1;
+}
+
+// Function return values in definitions.
+
+svint8_t
+ret_st1 (svint8_t param)
+{
+  return param;
+}
+
+svint8_t
+bad_ret_st1 (svint16_t param)
+{
+  return param; // { dg-error {cannot convert 'svint16_t' to 'svint8_t' in return} }
+}
+
+#if __cplusplus >= 201103L
+template<typename T>
+void
+const_to_sve_sc (T i)
+{
+  constexpr svint8_t a = (svint8_t) i;
+}
+#endif
+
+template<typename T>
+int
+get_x (T *a)
+{
+  return a->a; // { dg-error {request for member 'a' in '\* a', which is of non-class type} }
+}
+template int get_x<svint8_t>(svint8_t *);
+
+#if __cplusplus < 201103L
+void thrower3 () throw (svint8_t) {} // { dg-error {cannot throw or catch SVE type 'svint8_t'} "" { target c++98_only } }
+#endif
+
+// Using "auto" as a return type.
+
+#if __cplusplus >= 201402L
+auto auto_ret_sve_sc (svint8_t *ptr) { return *ptr; }
+const auto &auto_ret_const_sve_sc_ref (svint8_t *ptr) { return *ptr; }
+auto &auto_ret_sve_sc_ref (svint8_t *ptr) { return *ptr; }
+auto &&auto_ret_sve_sc_rvalue_ref (svint8_t *ptr) { return *ptr; }
+#endif