gcc/testsuite/gcc.target/i386/pr83682.c

   1 /* PR rtl-optimization/83682 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -msse2" } */
   4
   5 typedef float V __attribute__((__vector_size__(16)));
   6 typedef double W __attribute__((__vector_size__(16)));
   7 V b;
   8 W c;
   9
  10 void
  11 foo (void *p)
  12 {
  13   V e = __builtin_ia32_cvtsd2ss (b, c);
  14   V g = e;
  15   float f = g[0];
  16   __builtin_memcpy (p, &f, sizeof (f));
  17 }