gcc/testsuite/gcc.dg/tree-ssa/andor-5.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-optimized" } */
   3
   4 int f(int y, int x)
   5 {
   6   int a = x | y;
   7   return a & x;
   8 }
   9 int f1(int y, int x)
  10 {
  11   int a = y | x;
  12   return a & x;
  13 }
  14 int f2(int y, int x)
  15 {
  16   int a = x | y;
  17   return x & a;
  18 }
  19 int f3(int y, int x)
  20 {
  21   int a = x | y;
  22   return x & a;
  23 }
  24 int f4(int y, int x)
  25 {
  26   int a = x & y;
  27   return a | x;
  28 }
  29 int f5(int y, int x)
  30 {
  31   int a = y & x;
  32   return a | x;
  33 }
  34 int f6(int y, int x)
  35 {
  36   int a = x & y;
  37   return x | a;
  38 }
  39 int f7(int y, int x)
  40 {
  41   int a = x & y;
  42   return x | a;
  43 }
  44 /* These all should be optimized to just return x; */
  45
  46
  47 /* { dg-final { scan-tree-dump-times "\\\|" 0 "optimized" } } */
  48 /* { dg-final { scan-tree-dump-times "\&" 0 "optimized" } } */
  49 /* { dg-final { scan-tree-dump-times "return x_..D.;" 8 "optimized" } } */
  50 /* { dg-final { cleanup-tree-dump "optimized" } } */