gcc/testsuite/g++.dg/tree-ssa/pr38572.C

   1 // PR tree-optimization/38572
   2 // { dg-do compile }
   3 // { dg-options "-O2" }
   4
   5 // Crash caused by the out-of-bounds enum values (all the remaining cruft
   6 // is needed only to trigger the appropriate code path in tree-vrp.c).
   7 enum JSOp
   8 {
   9   JSOP_GETELEM = 5,
  10   JSOP_LIMIT
  11 };
  12 extern void g ();
  13 void f (char *pc, char *endpc, int format, char ***fp, enum JSOp op)
  14 {
  15   while (pc <= endpc)
  16     {
  17       if ((fp && *fp && pc == **fp) || pc == endpc)
  18         {
  19           if (format == 1)
  20             op = (JSOp) 256;
  21           else if (format == 2)
  22             op = (JSOp) 257;
  23           else
  24             op = JSOP_GETELEM;
  25         }
  26       if (op >= JSOP_LIMIT)
  27         {
  28           if (format)
  29             g ();
  30         }
  31     }
  32 }