gcc/testsuite/gcc.target/i386/pr83735.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target avx } */
   3 /* { dg-options "-O3 -mavx" } */
   4
   5 #include <stdlib.h>
   6 #include "cpuid.h"
   7 #include "m256-check.h"
   8 #include "avx-os-support.h"
   9
  10 static void __attribute__((constructor))
  11 check_avx (void)
  12 {
  13   unsigned int eax, ebx, ecx, edx;
  14
  15   if (!__get_cpuid (1, &eax, &ebx, &ecx, &edx))
  16     exit (0);
  17
  18   /* Run AVX test only if host has AVX support.  */
  19   if (((ecx & (bit_AVX | bit_OSXSAVE)) == (bit_AVX | bit_OSXSAVE))
  20       && avx_os_support ())
  21     return;
  22
  23   exit (0);
  24 }
  25
  26 struct S
  27 {
  28   short b;
  29   long c;
  30   char d;
  31   long e;
  32   unsigned:8;
  33 };
  34
  35 int f, h, k, l;
  36 int g[10];
  37 volatile struct S j;
  38 char m;
  39
  40 int
  41 main (void)
  42 {
  43   int i;
  44   struct S n;
  45   for (i = 0; i < 6; i++)
  46     {
  47       for (f = 0; f < 10; f++)
  48         g[f] = 4;
  49       n = j;
  50       h = m == 0 ? 1 : 5 % m;
  51       if (l)
  52         n.b = k;
  53     }
  54   return n.b;
  55 }