gcc/testsuite/gcc.dg/tree-ssa/pr21574.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fdump-tree-fre-details" } */
   3
   4 int
   5 foo (int *p)
   6 {
   7   *p = 0;
   8   return *p;
   9 }
  10
  11 /* The store to *p should be propagated to the load statement.  */
  12 /* { dg-final { scan-tree-dump "Replaced \\\*p_.\\\(D\\\) with 0" "fre" } } */
  13 /* { dg-final { cleanup-tree-dump "fre" } } */