gcc/testsuite/gcc.dg/tree-ssa/pr96685-2.c

   1 /* PR tree-optimization/96685 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -fdump-tree-optimized" } */
   4 /* { dg-final { scan-tree-dump-times "return 1;" 4 "optimized" } } */
   5
   6 int
   7 f1 (unsigned x, unsigned y)
   8 {
   9   unsigned int r1 = (x - y);
  10   r1 = ~r1;
  11   unsigned int r2 = ~(x - y);
  12   return r1 == r2;
  13 }
  14
  15 int
  16 f2 (unsigned x, unsigned y)
  17 {
  18   unsigned int r1 = (x - 23);
  19   r1 = ~r1;
  20   unsigned int r2 = ~(x - 23);
  21   return r1 == r2;
  22 }
  23
  24 int
  25 f3 (int x, int y)
  26 {
  27   int r1 = (x - y);
  28   r1 = ~r1;
  29   int r2 = ~(x - y);
  30   return r1 == r2;
  31 }
  32
  33 int
  34 f4 (int x, int y)
  35 {
  36   int r1 = (x - 23);
  37   r1 = ~r1;
  38   int r2 = ~(x - 23);
  39   return r1 == r2;
  40 }