[Bug optimization/13875] [tree-ssa] missed jump thread optimization on the tree-level

["pinskia at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-04-06 01:44 -------
You do not have to file a new bug, I have a fix already, the issue has to do with casts:
bool PT<GPROGRAM>::isReallyPossible() const [with GPROGRAM = GRULES] (this)
{
  TruthValue T.3218;
  int iftmp.14093;

<bb 0>:
  if (this->allowsPositive) goto <L0>; else goto <L11>;

<L0>:;
  T.3218 = *(((struct GINTERPRET *)this->I)->array + (TruthValue *)(((struct 
__normal_iterator<constGATOM*,std::vector<GATOM, std::allocator<GATOM> > > *)this + 12B)-
>_M_current->index * 4));
  if (T.3218 == 0) goto <L17>; else goto <L4>;

<L17>:;
  iftmp.14093 = 1;
  goto <bb 4> (<L10>);

<L4>:;
  if (T.3218 == 2) goto <L8>; else goto <L18>;

<L18>:;
  iftmp.14093 = 0;
  goto <bb 4> (<L10>);

<L8>:;
  iftmp.14093 = 1;

<L10>:;
  return iftmp.14093;

<L11>:;
  return (int)*(((struct GINTERPRET *)this->I)->array + (TruthValue *)(((struct GATOM *)(struct GATOM 
&)((struct __normal_iterator<constTLITERAL<GATOM>*,std::vector<TLITERAL<GATOM>, std::
allocator<TLITERAL<GATOM> > > > *)this + 16B)->_M_current)->index * 4)) == 0;

}

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13875