gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-5.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-pre-stats" } */
   3 int
   4 foo (int i)
   5 {
   6         int a, b;
   7         if (i)
   8                 a = 3, b = 2;
   9         else
  10                 a = 2, b = 3;
  11         return a + b;
  12 }
  13 /* We should detect that a+b is the same along both edges, and replace it with
  14    5  */
  15 /* { dg-final { scan-tree-dump-times "Eliminated: 1" 1 "pre"} } */
  16 /* { dg-final { scan-tree-dump-times "Insertions" 0 "pre"} } */