gcc/testsuite/gcc.target/i386/pr80173.c

   1 /* PR middle-end/80173 */
   2 /* { dg-do compile { target lp64 } } */
   3 /* { dg-options "-O2 -ffixed-xmm7" } */
   4
   5 typedef int V __attribute__ ((vector_size (2 * sizeof (int))));
   6
   7 struct U { V a; V b; };
   8
   9 int
  10 foo (int i)
  11 {
  12   register struct U u asm ("xmm7") = {{-1, 0}, {-1, 0}};
  13   return u.b[i];
  14 }
  15
  16 int
  17 bar (int i)
  18 {
  19   register struct U u asm ("xmm7");
  20   u = (struct U) {{-1, 0}, {-1, 0}};
  21   return u.b[i];
  22 }