gcc/testsuite/gcc.dg/store_merging_9.c

   1 /* PR tree-optimization/82434 */
   2 /* { dg-do compile } */
   3 /* { dg-require-effective-target store_merge } */
   4 /* { dg-options "-O2 -fdump-tree-store-merging" } */
   5
   6 enum E { E0, E1, E2 = __INT_MAX__, E3 = -__INT_MAX__ - 1 };
   7
   8 struct bar {
   9   enum E a;
  10   char b;
  11   _Bool c;
  12   short d;
  13 };
  14
  15 void
  16 foo1 (struct bar *p)
  17 {
  18   p->b = 0;
  19   p->a = E0;
  20   p->c = (_Bool) 0;
  21   p->d = 0;
  22 }
  23
  24 void
  25 foo2 (struct bar *p)
  26 {
  27   p->b = 0;
  28   p->a = E0;
  29   p->c = (_Bool) 1;
  30   p->d = 0;
  31 }
  32
  33 /* { dg-final { scan-tree-dump-times "Merging successful" 2 "store-merging" } } */