src/share/vm/opto/connode.cpp

@@ -429,20 +429,10 @@
 // control copies
 Node *ConstraintCastNode::Ideal(PhaseGVN *phase, bool can_reshape){
   return (in(0) && remove_dead_region(phase, can_reshape)) ? this : NULL;
 }
 
-//------------------------------Ideal_DU_postCCP-------------------------------
-// Throw away cast after constant propagation
-Node *ConstraintCastNode::Ideal_DU_postCCP( PhaseCCP *ccp ) {
-  const Type *t = ccp->type(in(1));
-  ccp->hash_delete(this);
-  set_type(t);                   // Turn into ID function
-  ccp->hash_insert(this);
-  return this;
-}
-
 uint CastIINode::size_of() const {
   return sizeof(*this);
 }
 
 uint CastIINode::cmp(const Node &n) const {

@@ -522,17 +512,10 @@
     }
   }
   return res;
 }
 
-Node *CastIINode::Ideal_DU_postCCP(PhaseCCP *ccp) {
-  if (_carry_dependency || _range_check_dependency) {
-    return NULL;
-  }
-  return ConstraintCastNode::Ideal_DU_postCCP(ccp);
-}
-
 #ifndef PRODUCT
 void CastIINode::dump_spec(outputStream *st) const {
   TypeNode::dump_spec(st);
   if (_carry_dependency) {
     st->print(" carry dependency");

@@ -542,24 +525,10 @@
   }
 }
 #endif
 
 //=============================================================================
-
-//------------------------------Ideal_DU_postCCP-------------------------------
-// If not converting int->oop, throw away cast after constant propagation
-Node *CastPPNode::Ideal_DU_postCCP( PhaseCCP *ccp ) {
-  const Type *t = ccp->type(in(1));
-  if (!t->isa_oop_ptr() || ((in(1)->is_DecodeN()) && Matcher::gen_narrow_oop_implicit_null_checks())) {
-    return NULL; // do not transform raw pointers or narrow oops
-  }
-  return ConstraintCastNode::Ideal_DU_postCCP(ccp);
-}
-
-
-
-//=============================================================================
 //------------------------------Identity---------------------------------------
 // If input is already higher or equal to cast type, then this is an identity.
 Node *CheckCastPPNode::Identity( PhaseTransform *phase ) {
   // Toned down to rescue meeting at a Phi 3 different oops all implementing
   // the same interface.  CompileTheWorld starting at 502, kd12rc1.zip.

@@ -688,15 +657,10 @@
 
   assert(t->isa_oop_ptr(), "only oopptr here");
   return t->make_narrowoop();
 }
 
-
-Node *EncodeNarrowPtrNode::Ideal_DU_postCCP( PhaseCCP *ccp ) {
-  return MemNode::Ideal_common_DU_postCCP(ccp, this, in(1));
-}
-
 Node* DecodeNKlassNode::Identity(PhaseTransform* phase) {
   const Type *t = phase->type( in(1) );
   if( t == Type::TOP ) return in(1);
 
   if (in(1)->is_EncodePKlass()) {