gcc/testsuite/gcc.target/i386/pr63637-1.c

   1 /* PR rtl-optimization/63637 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2" } */
   4
   5 int
   6 foo (void)
   7 {
   8   int a, b, c;
   9   asm ("# Magic instruction" : "=r" (a) : : "eax");
  10   asm ("# Magic instruction" : "=r" (b) : : "edx");
  11   asm ("# Magic instruction" : "=r" (c) : : "ecx");
  12   return a + b + c;
  13 }
  14
  15 /* { dg-final { scan-assembler-times "# Magic instruction" 1 } } */