gcc/testsuite/gcc.dg/pr93820-2.c

   1 /* PR tree-optimization/93820 */
   2 /* { dg-do run } */
   3 /* { dg-options "-O2 -fgimple" } */
   4
   5 typedef int v4si __attribute__((vector_size(4 * sizeof (int))));
   6 int a[10];
   7
   8 void __GIMPLE (ssa,startwith("store-merging"))
   9 foo (int *p)
  10 {
  11   int _2;
  12   __BB(2):
  13   _2 = *p_1(D);
  14   a[6] = _2;
  15   a[4] = 1;
  16   __MEM <v4si> ((int *)&a + _Literal (int *) 16) = _Literal (v4si) { 0, 0, 0, 0 };
  17   a[3] = 0;
  18   return;
  19 }
  20
  21 int
  22 main ()
  23 {
  24   int i = 0;
  25   foo (&i);
  26   for (i = 0; i < 10; i++)
  27     if (a[i])
  28       __builtin_abort ();
  29   return 0;
  30 }