gcc/testsuite/gcc.dg/tree-ssa/vrp28.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-vrp1" } */
   3
   4 int f(_Bool a)
   5 {
   6   int t = a;
   7   if (t != 2)
   8    return 0;
   9   return 1;
  10 }
  11
  12 int f1(unsigned char a)
  13 {
  14   int t = a;
  15   if (t != 256)
  16    return 0;
  17   return 1;
  18 }
  19
  20 int f3 (unsigned char c)
  21 {
  22   int i = c;
  23   if (i < 0 || i > 255)
  24     return -1;
  25   else
  26     return 0;
  27 }
  28
  29 /* { dg-final { scan-tree-dump-times "if " 0 "vrp1" } } */
  30
  31