gcc/testsuite/gcc.dg/Wstrict-aliasing-bogus-ref-all-2.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -Wall" } */
   3 /* { dg-options "-O2 -Wall -mabi=altivec" { target { { powerpc*-*-linux* } && ilp32 } } } */
   4 /* { dg-options "-O2 -Wall -msse2" { target { i?86-*-* x86_64-*-* } } } */
   5
   6 typedef long long __m128i __attribute__ ((__vector_size__ (16), __may_alias__));
   7
   8 extern __inline __m128i __attribute__((__gnu_inline__, __always_inline__, __artificial__))
   9 _mm_load_si128 (__m128i const *__P)
  10 {
  11   return *__P;
  12 }
  13
  14 static const short __attribute__((__aligned__(16))) tbl[8] =
  15 { 1, 2, 3, 4, 5, 6, 7, 8};
  16
  17
  18 __m128i get_vec(void)
  19 {
  20   __m128i ret;
  21
  22   ret = _mm_load_si128((__m128i *)tbl); /* { dg-bogus "type-punning" } */
  23
  24   return ret;
  25 }
  26
  27 /* Ignore a warning that is irrelevant to the purpose of this test.  */
  28 /* { dg-prune-output ".*GCC vector returned by reference.*" } */