gcc/testsuite/gcc.dg/tree-ssa/pr96669-1.c

   1 /* PR tree-optimization/96669 */
   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 "return 1;" "original" } } */
   6 /* { dg-final { scan-tree-dump "return c == 3;" "original" } } */
   7 /* { dg-final { scan-tree-dump "return d != 1;" "original" } } */
   8 /* { dg-final { scan-tree-dump "return e != 0;" "original" } } */
   9 /* { dg-final { scan-tree-dump "return f == 1;" "original" } } */
  10 /* { dg-final { scan-tree-dump "return 0;" "original" } } */
  11 /* { dg-final { scan-tree-dump "return h != 1;" "original" } } */
  12
  13 int
  14 f1 (int a)
  15 {
  16   return ((1 << a) & 1) != 0;
  17 }
  18
  19 int
  20 f2 (int b)
  21 {
  22   return ((2 << b) & 1) == 0;
  23 }
  24
  25 int
  26 f3 (int c)
  27 {
  28   return ((2 << c) & 16) != 0;
  29 }
  30
  31 int
  32 f4 (int d)
  33 {
  34   return ((16 << d) & 32) == 0;
  35 }
  36
  37 int
  38 f5 (int e)
  39 {
  40   return ((1 >> e) & 1) == 0;
  41 }
  42
  43 int
  44 f6 (int f)
  45 {
  46   return ((2 >> f) & 1) != 0;
  47 }
  48
  49 int
  50 f7 (int g)
  51 {
  52   return ((1 >> g) & 2) != 0;
  53 }
  54
  55 int
  56 f8 (int h)
  57 {
  58   return ((32 >> h) & 16) == 0;
  59 }