| /* { 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" } } */ |