gcc/testsuite/gcc.target/i386/avx-vzeroall-1.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target avx } */
   3 /* { dg-options "-O2 -mavx" } */
   4
   5 #include "avx-check.h"
   6
   7 static void
   8 avx_test (void)
   9 {
  10   __m256i src;
  11 #ifdef __x86_64__
  12   char reg_save[16][32];
  13   char d[16][32];
  14 #else
  15   char reg_save[8][32];
  16   char d[8][32];
  17 #endif
  18
  19   int s[8] = {1, 2, 3, 4, 5, 6, 7, 8};
  20
  21   __builtin_memset (d, 0, sizeof d);
  22   __builtin_memset (reg_save, -1, sizeof reg_save);
  23
  24   src = _mm256_loadu_si256 ((__m256i*) s);
  25
  26   _mm256_zeroall ();
  27
  28   __asm__ __volatile__ ("vmovdqu %%ymm0,%0":"=m"(reg_save[0]));
  29   __asm__ __volatile__ ("vmovdqu %%ymm1,%0":"=m"(reg_save[1]));
  30   __asm__ __volatile__ ("vmovdqu %%ymm2,%0":"=m"(reg_save[2]));
  31   __asm__ __volatile__ ("vmovdqu %%ymm3,%0":"=m"(reg_save[3]));
  32   __asm__ __volatile__ ("vmovdqu %%ymm4,%0":"=m"(reg_save[4]));
  33   __asm__ __volatile__ ("vmovdqu %%ymm5,%0":"=m"(reg_save[5]));
  34   __asm__ __volatile__ ("vmovdqu %%ymm6,%0":"=m"(reg_save[6]));
  35   __asm__ __volatile__ ("vmovdqu %%ymm7,%0":"=m"(reg_save[7]));
  36 #ifdef __x86_64__
  37   __asm__ __volatile__ ("vmovdqu %%ymm8,%0":"=m"(reg_save[8]));
  38   __asm__ __volatile__ ("vmovdqu %%ymm9,%0":"=m"(reg_save[9]));
  39   __asm__ __volatile__ ("vmovdqu %%ymm10,%0":"=m"(reg_save[10]));
  40   __asm__ __volatile__ ("vmovdqu %%ymm11,%0":"=m"(reg_save[11]));
  41   __asm__ __volatile__ ("vmovdqu %%ymm12,%0":"=m"(reg_save[12]));
  42   __asm__ __volatile__ ("vmovdqu %%ymm13,%0":"=m"(reg_save[13]));
  43   __asm__ __volatile__ ("vmovdqu %%ymm14,%0":"=m"(reg_save[14]));
  44   __asm__ __volatile__ ("vmovdqu %%ymm15,%0":"=m"(reg_save[15]));
  45 #endif
  46
  47   if (__builtin_memcmp (reg_save, d, sizeof d))
  48     abort ();
  49
  50   _mm256_storeu_si256 ((__m256i*) d, src);
  51
  52 }