gcc/testsuite/gcc.dg/pr66299-2.c

   1 /* PR tree-optimization/66299 */
   2 /* { dg-do run } */
   3 /* { dg-options "-fdump-tree-optimized -O" } */
   4 /* { dg-require-effective-target int32plus } */
   5
   6 void
   7 test1 (int x, unsigned u)
   8 {
   9   if ((1U << x) != 64
  10       || (2 << x) != u
  11       || (x << x) != 384
  12       || (3 << x) == 9
  13       || (x << 14) != 98304U
  14       || (1 << x) == 14
  15       || (3 << 2) != 12)
  16     __builtin_abort ();
  17 }
  18
  19 void
  20 test2 (int x)
  21 {
  22   unsigned int t = ((unsigned int) 1U << x);
  23   if (t != 2U)
  24     __builtin_abort ();
  25 }
  26
  27 int
  28 main (void)
  29 {
  30   test1 (6, 128U);
  31   test2 (1);
  32 }
  33
  34 /* { dg-final { scan-tree-dump-not "<<" "optimized" } } */