1 /* { dg-do run { target i?86-*-* x86_64-*-* } } */
2 /* { dg-options "-O2 -msse2" } */
3 /* { dg-require-effective-target sse2_runtime } */
4
5 #include <xmmintrin.h>
6
7 extern "C" void abort ();
8
9 typedef double double_a __attribute__((__may_alias__));
10
11 struct V
12 {
13 __m128d data;
14 };
15
16 int
main()17 main()
18 {
19 V a;
20 __m128d b;
21
22 b = _mm_set_pd (1., 0.);
23 a.data = _mm_set_pd (1., 0.);
24 a.data = _mm_add_pd (a.data,
25 _mm_and_pd (_mm_cmpeq_pd (a.data, _mm_set1_pd (0.)),
26 _mm_set1_pd (2.)));
27 reinterpret_cast<double_a *>(&a.data)[1] += 1.;
28 b = _mm_add_pd (b, _mm_and_pd (_mm_cmpeq_pd (b, _mm_set1_pd (0.)),
29 _mm_set1_pd (1.)));
30 b = _mm_add_pd (b, _mm_and_pd (_mm_cmpeq_pd (b, _mm_set1_pd (1.)),
31 _mm_set1_pd (1.)));
32 if (_mm_movemask_pd (_mm_cmpeq_pd (a.data, b)) != 0x3)
33 abort();
34
35 return 0;
36 }
37