gcc/testsuite/gcc.dg/pr27132.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-fdump-tree-gimple" } */
   3
   4 int foo(int i)
   5 {
   6   return i - -1;
   7 }
   8
   9 /* { dg-final { scan-tree-dump "i \\+ 1" "gimple" } } */
  10 /* { dg-final { cleanup-tree-dump "gimple" } } */