gcc/testsuite/gcc.dg/tree-ssa/forwprop-2.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-forwprop1" }  */
   3
   4 /* We should be able to optimize this to b->t[i] = 1 during
   5    early optimizations.  */
   6
   7 struct a
   8 {
   9   char t[10];
  10 };
  11
  12 struct a *b;
  13
  14 void f(__SIZE_TYPE__ i)
  15 {
  16   char *c = b->t;
  17   c[i] = 1;
  18 }
  19
  20 /* { dg-final { scan-tree-dump "t\\\[i.*\\\] = 1;" "forwprop1" } } */
  21 /* { dg-final { cleanup-tree-dump "forwprop?" } } */