gcc/testsuite/gcc.dg/tree-ssa/pr105832-2.c

   1 /* PR tree-optimization/105832 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -fdump-tree-original" } */
   4 /* { dg-final { scan-tree-dump "a == 0" "original" } } */
   5 /* { dg-final { scan-tree-dump "b == 0" "original" } } */
   6 /* { dg-final { scan-tree-dump "c != 0" "original" } } */
   7 /* { dg-final { scan-tree-dump "d != 0" "original" } } */
   8
   9 int
  10 f1 (int a)
  11 {
  12   return (1 >> a) != 0;
  13 }
  14
  15 int
  16 f2 (int b)
  17 {
  18   return ((1 >> b) & 1) != 0;
  19 }
  20 int
  21 f3 (int c)
  22 {
  23   return (1 >> c) == 0;
  24 }
  25
  26 int
  27 f4 (int d)
  28 {
  29   return ((1 >> d) & 1) == 0;
  30 }