gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-3.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-dse1" } */
   3
   4 char Bool_Glob;
   5 void f(void)
   6 {
   7   Bool_Glob = 0;
   8   Bool_Glob = 1;
   9 }
  10
  11 /* We should eliminate the first assignment to *p, but not the second.  */
  12 /* { dg-final { scan-tree-dump-times "Bool_Glob = 0" 0 "dse1"} } */
  13 /* { dg-final { scan-tree-dump-times "Bool_Glob = 1" 1 "dse1"} } */
  14
  15 /* { dg-final { cleanup-tree-dump "dse1" } } */
  16