gcc/testsuite/gcc.target/i386/pr48335-1.c

   1 /* PR middle-end/48335 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -fno-tree-sra -msse2" } */
   4
   5 #include <emmintrin.h>
   6
   7 typedef __float128 T __attribute__((may_alias));
   8
   9 struct S
  10 {
  11   _Complex double d __attribute__((aligned (16)));
  12 };
  13
  14 void bar (struct S);
  15
  16 void
  17 f1 (T x)
  18 {
  19   struct S s;
  20   *(T *) &s.d = x;
  21   __real__ s.d *= 7.0;
  22   bar (s);
  23 }
  24
  25 void
  26 f2 (__m128d x)
  27 {
  28   struct S s;
  29   _mm_store_pd ((double *) &s.d, x);
  30   __real__ s.d *= 7.0;
  31   bar (s);
  32 }