gcc/testsuite/gcc.dg/tree-ssa/vrp60.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fno-tree-ccp -fno-tree-dominator-opts -fdump-tree-vrp1" } */
   3
   4 int foo (int x, int b)
   5 {
   6   int cst;
   7   if (b)
   8     cst = -__INT_MAX__ - 1;
   9   else
  10     cst = -__INT_MAX__;
  11   x = x | cst;
  12   if (x >= 0)
  13     return 12345;
  14   return x;
  15 }
  16
  17 int bar (int x, int b)
  18 {
  19   int cst;
  20   if (b)
  21     cst = __INT_MAX__;
  22   else
  23     cst = __INT_MAX__ - 1;
  24   x = x & cst;
  25   if (x < 0)
  26     return 12345;
  27   return x;
  28 }
  29
  30 /* { dg-final { scan-tree-dump-not "12345" "vrp1" } } */