1 /* { dg-do compile } */
2 /* { dg-options "-O2 -msse2" } */
3 
4 #include <emmintrin.h>
5 
6 typedef long long T __attribute__((may_alias));
7 struct S { __m128i d; };
8 
9 __m128i
foo(long long * x,struct S * y,__m128i * z)10 foo (long long *x, struct S *y, __m128i *z)
11 {
12   struct S s = *y;
13   ((T *) &s.d)[0] = *x;
14   return _mm_cmpeq_epi16 (s.d, *z);
15 }
16