gcc/testsuite/gcc.target/i386/pr65671.c

   1 /* PR target/65671 */
   2 /* { dg-do assemble } */
   3 /* { dg-require-effective-target lp64 } */
   4 /* { dg-require-effective-target avx512vl } */
   5 /* { dg-options "-O2 -mavx512vl -ffixed-ymm16" } */
   6
   7 #include <x86intrin.h>
   8
   9 register __m256d a asm ("ymm16");
  10 __m128d b;
  11
  12 void
  13 foo ()
  14 {
  15   b = _mm256_extractf128_pd (a, 1);
  16 }