gcc/testsuite/gcc.dg/pr15784-4.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-optimized" } */
   3 int a (int x) {
   4         return ~x + 1; /* -x */
   5 }
   6
   7 int b (int x) {
   8         return -x -1; /* ~x */
   9 }
  10
  11 /* { dg-final { scan-tree-dump "~x;" "optimized" } } */
  12 /* { dg-final { scan-tree-dump "-x;" "optimized" } } */