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diff src/share/vm/opto/connode.hpp @ 126:72f4a668df19

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6625997: CastPP, CheckCastPP and Proj nodes are not dead loop safe Summary: EA and initialization optimizations could bypass these nodes. Reviewed-by: rasbold, never
author kvn
date Wed, 23 Apr 2008 19:09:16 -0700
parents b130b98db9cf
children 885ed790ecf0
line wrap: on
line diff
--- a/src/share/vm/opto/connode.hpp	Wed Apr 23 13:57:14 2008 -0700
+++ b/src/share/vm/opto/connode.hpp	Wed Apr 23 19:09:16 2008 -0700
@@ -239,10 +239,7 @@
 // cast pointer to pointer (different type)
 class CastPPNode: public ConstraintCastNode {
 public:
-  CastPPNode (Node *n, const Type *t ): ConstraintCastNode(n, t) {
-    // Only CastPP is safe.  CastII can cause optimizer loops.
-    init_flags(Flag_is_dead_loop_safe);
-  }
+  CastPPNode (Node *n, const Type *t ): ConstraintCastNode(n, t) {}
   virtual int Opcode() const;
   virtual uint ideal_reg() const { return Op_RegP; }
   virtual Node *Ideal_DU_postCCP( PhaseCCP * );
@@ -254,10 +251,10 @@
 public:
   CheckCastPPNode( Node *c, Node *n, const Type *t ) : TypeNode(t,2) {
     init_class_id(Class_CheckCastPP);
-    init_flags(Flag_is_dead_loop_safe);
     init_req(0, c);
     init_req(1, n);
   }
+
   virtual Node *Identity( PhaseTransform *phase );
   virtual const Type *Value( PhaseTransform *phase ) const;
   virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);