gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fdump-tree-fre-details" } */
   3
   4 /* From PR27090.  */
   5
   6 int f(int *a)
   7 {
   8   int t = *a;
   9   unsigned *b = (unsigned *)a;
  10   int *c = (int*)b;
  11   return *c + t;
  12 }
  13
  14 /* { dg-final { scan-tree-dump "Replaced \\\(int \\\*\\\) b_.*with a_" "fre" } } */
  15 /* { dg-final { scan-tree-dump "Replaced \\\*c_.*with t_" "fre" } } */
  16 /* { dg-final { cleanup-tree-dump "fre" } } */