gcc/testsuite/gcc.dg/fold-eqandshift-2.c

   1 /* PR middle-end/14752 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -fdump-tree-original" } */
   4
   5 void bar (void);
   6
   7 void foo (unsigned int a)
   8 {
   9   if ((a >> 2) & 1)
  10     bar ();
  11 }
  12
  13 void baz (unsigned int b)
  14 {
  15   if ((~b >> 2) & 1)
  16     bar ();
  17 }
  18
  19 /* { dg-final { scan-tree-dump-times "\\(a \& 4\\) != 0" 1 "original" } } */
  20 /* { dg-final { scan-tree-dump-times "\\(b \& 4\\) == 0" 1 "original" } } */
  21 /* { dg-final { cleanup-tree-dump "original" } } */
  22