gcc/testsuite/gcc.target/i386/pr101492-3.c

/* { dg-do compile } */
/* { dg-options "-O2 -msse3 -mgeneral-regs-only" } */

#include <x86intrin.h>

void
foo1 (unsigned int x, unsigned int y)
{
  _mm_mwait (x, y);
}