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/* { dg-do compile } */
/* { dg-options "-O -ffast-math -msse2 -fdump-tree-optimized" } */
#include <emmintrin.h>
int f(__m128d x){
x = _mm_sub_pd (x, x);
x = _mm_mul_pd (x, x);
double r = 42;
_mm_storeh_pd (&r, x);
int z = r == 0;
return __builtin_constant_p (z) && z;
}
/* { dg-final { scan-tree-dump "return 1;" "optimized" } } */
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