gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-cse-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-fre1-details" } */
   3 int t(int a) __attribute__ ((const));
   4 void q (void);
   5 void
   6 threading(int a,int b)
   7 {
   8         if (t(a))
   9         {
  10           if (t(a))
  11             q();
  12         }
  13 }
  14 /* We should thread the jump twice and eliminate it.  */
  15 /* { dg-final { scan-tree-dump-times "Replaced.* t " 1 "fre1"} } */
  16 /* { dg-final { cleanup-tree-dump "fre1" } } */