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/* PR rtl-optimization/63637 */
/* { dg-do compile } */
/* { dg-options "-O2" } */
int
foo (void)
{
int a, b, c;
asm ("# Magic instruction" : "=r" (a) : "r" (0));
asm ("# Magic instruction" : "=r" (b) : "r" (0));
asm ("# Magic instruction" : "=r" (c) : "r" (0));
return a + b + c;
}
/* { dg-final { scan-assembler-times "# Magic instruction" 1 } } */
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