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diff src/share/vm/opto/subnode.hpp @ 113:ba764ed4b6f2

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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes Summary: Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold
author coleenp
date Sun, 13 Apr 2008 17:43:42 -0400
parents a61af66fc99e
children d1605aabd0a1
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line diff
--- a/src/share/vm/opto/subnode.hpp	Fri Apr 11 09:56:35 2008 -0400
+++ b/src/share/vm/opto/subnode.hpp	Sun Apr 13 17:43:42 2008 -0400
@@ -163,6 +163,16 @@
   virtual const Type *sub( const Type *, const Type * ) const;
 };
 
+//------------------------------CmpNNode--------------------------------------
+// Compare 2 narrow oop values, returning condition codes (-1, 0 or 1).
+class CmpNNode : public CmpNode {
+public:
+  CmpNNode( Node *in1, Node *in2 ) : CmpNode(in1,in2) {}
+  virtual int Opcode() const;
+  virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
+  virtual const Type *sub( const Type *, const Type * ) const;
+};
+
 //------------------------------CmpLNode---------------------------------------
 // Compare 2 long values, returning condition codes (-1, 0 or 1).
 class CmpLNode : public CmpNode {