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diff src/share/vm/opto/connode.cpp @ 164:c436414a719e

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6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions Summary: Add LoadNKlass and CMoveN nodes, use CmpN and ConN nodes to generate narrow oops compare instructions. Reviewed-by: never, rasbold
author kvn
date Wed, 21 May 2008 13:46:23 -0700
parents 885ed790ecf0
children 7793bd37a336
line wrap: on
line diff
--- a/src/share/vm/opto/connode.cpp	Wed May 21 10:45:07 2008 -0700
+++ b/src/share/vm/opto/connode.cpp	Wed May 21 13:46:23 2008 -0700
@@ -38,12 +38,12 @@
   if (t->isa_narrowoop()) return new (C, 1) ConNNode( t->is_narrowoop() );
   switch( t->basic_type() ) {
   case T_INT:       return new (C, 1) ConINode( t->is_int() );
-  case T_ARRAY:     return new (C, 1) ConPNode( t->is_aryptr() );
   case T_LONG:      return new (C, 1) ConLNode( t->is_long() );
   case T_FLOAT:     return new (C, 1) ConFNode( t->is_float_constant() );
   case T_DOUBLE:    return new (C, 1) ConDNode( t->is_double_constant() );
   case T_VOID:      return new (C, 1) ConNode ( Type::TOP );
   case T_OBJECT:    return new (C, 1) ConPNode( t->is_oopptr() );
+  case T_ARRAY:     return new (C, 1) ConPNode( t->is_aryptr() );
   case T_ADDRESS:   return new (C, 1) ConPNode( t->is_ptr() );
     // Expected cases:  TypePtr::NULL_PTR, any is_rawptr()
     // Also seen: AnyPtr(TopPTR *+top); from command line:
@@ -185,6 +185,7 @@
   case T_LONG:    return new (C, 4) CMoveLNode( bol, left, right, t->is_long() );
   case T_OBJECT:  return new (C, 4) CMovePNode( c, bol, left, right, t->is_oopptr() );
   case T_ADDRESS: return new (C, 4) CMovePNode( c, bol, left, right, t->is_ptr() );
+  case T_NARROWOOP: return new (C, 4) CMoveNNode( c, bol, left, right, t );
   default:
     ShouldNotReachHere();
     return NULL;
@@ -570,7 +571,7 @@
   return bottom_type();
 }
 
-Node* DecodeNNode::decode(PhaseGVN* phase, Node* value) {
+Node* DecodeNNode::decode(PhaseTransform* phase, Node* value) {
   if (value->Opcode() == Op_EncodeP) {
     // (DecodeN (EncodeP p)) -> p
     return value->in(1);
@@ -604,7 +605,7 @@
   return bottom_type();
 }
 
-Node* EncodePNode::encode(PhaseGVN* phase, Node* value) {
+Node* EncodePNode::encode(PhaseTransform* phase, Node* value) {
   if (value->Opcode() == Op_DecodeN) {
     // (EncodeP (DecodeN p)) -> p
     return value->in(1);