gcc/testsuite/gcc.dg/torture/stackalign/alloca-2.c

   1 /* PR middle-end/37009 */
   2 /* { dg-do run { target { { i?86-*-* x86_64-*-* } && ia32 } } } */
   3 /* { dg-additional-options "-mmmx -msse2" } */
   4 /* { dg-require-effective-target sse2_runtime } */
   5
   6 #include <emmintrin.h>
   7 #include "check.h"
   8
   9 #ifndef ALIGNMENT
  10 #define ALIGNMENT       16
  11 #endif
  12
  13 typedef int aligned __attribute__((aligned(ALIGNMENT)));
  14
  15 void
  16 bar (char *p, int size)
  17 {
  18   __builtin_strncpy (p, "good", size);
  19 }
  20
  21 void
  22 __attribute__ ((noinline))
  23 foo (__m128 x, __m128 y ,__m128 z , int size)
  24 {
  25   char *p = __builtin_alloca (size + 1);
  26   aligned i;
  27
  28   bar (p, size);
  29   if (__builtin_strncmp (p, "good", size) != 0)
  30     {
  31 #ifdef DEBUG
  32       p[size] = '\0';
  33       printf ("Failed: %s != good\n", p);
  34 #endif
  35       abort ();
  36     }
  37
  38   if (check_int (&i,  __alignof__(i)) != i)
  39     abort ();
  40 }
  41
  42 int
  43 main (void)
  44 {
  45   __m128 x = { 1.0 };
  46   foo (x, x, x, 5);
  47
  48   return 0;
  49 }