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

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-fre-stats" } */
   3 int main(int argc, char **argv)
   4 {
   5   int *p;
   6   int result;
   7   *p = 2;
   8   if (argc)
   9     *p = 2;
  10   result = *p;
  11   return result;
  12 }
  13 /* We should eliminate result = *p by saying it has the value 2.  */
  14 /* { dg-final { scan-tree-dump-times "Eliminated: 1" 1 "fre"} } */
  15 /* { dg-final { cleanup-tree-dump "fre" } } */