gcc/testsuite/gcc.target/i386/pr67609-2.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2 -msse2" } */
   3 /* { dg-require-effective-target sse2 } */
   4
   5 #include "sse2-check.h"
   6
   7 #include <emmintrin.h>
   8
   9 __m128d reg = { 2.0, 4.0 };
  10
  11 void
  12 __attribute__((noinline))
  13 set_lower (double b)
  14 {
  15   double v[2];
  16   _mm_store_pd(v, reg);
  17   v[0] = b;
  18   reg = _mm_load_pd(v);
  19 }
  20
  21 static void
  22 sse2_test (void)
  23 {
  24   set_lower (6.0);
  25
  26   if (reg[1] != 4.0)
  27     __builtin_abort ();
  28 }