gcc/testsuite/gcc.target/i386/avx512f-prefer.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O3 -march=skylake-avx512 -mprefer-vector-width=256" } */
   3 /* { dg-final { scan-assembler-not "%zmm\[0-9\]+" } } */
   4 /* { dg-final { scan-assembler "vmulpd" } } */
   5
   6 #define N 1024
   7
   8 double a[N], b[N], c[N];
   9
  10 void
  11 avx512f_test (void)
  12 {
  13   int i;
  14
  15   for (i = 0; i < N; i++)
  16     c[i] = a[i] * b[i];
  17 }
  18