gcc/testsuite/gcc.target/i386/pr63563.c

   1 /* PR tree-optimization/63563 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O3 -mavx2" } */
   4
   5 struct A { unsigned long a, b, c, d; } a[1024] = { { 0, 1, 2, 3 } }, b;
   6
   7 void
   8 foo (void)
   9 {
  10   int i;
  11   for (i = 0; i < 1024; i++)
  12     {
  13       a[i].a = a[i].b = a[i].c = b.c;
  14       if (a[i].d)
  15         a[i].d = b.d;
  16     }
  17 }