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comparison src/share/vm/opto/subnode.cpp @ 221:1e026f8da827

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6710487: More than half of JDI Regression tests hang with COOPs in -Xcomp mode Summary: Remove DecodeNNode::decode() and EncodePNode::encode() methods. Reviewed-by: rasbold, never
author kvn
date Tue, 24 Jun 2008 10:43:29 -0700
parents 99bf1609e2a5
children 9c2ecc2ffb12
comparison
equal deleted inserted replaced
220:30369db7f5d2 221:1e026f8da827
741 //============================================================================= 741 //=============================================================================
742 //------------------------------sub-------------------------------------------- 742 //------------------------------sub--------------------------------------------
743 // Simplify an CmpN (compare 2 pointers) node, based on local information. 743 // Simplify an CmpN (compare 2 pointers) node, based on local information.
744 // If both inputs are constants, compare them. 744 // If both inputs are constants, compare them.
745 const Type *CmpNNode::sub( const Type *t1, const Type *t2 ) const { 745 const Type *CmpNNode::sub( const Type *t1, const Type *t2 ) const {
746 const TypePtr *r0 = t1->is_narrowoop()->make_oopptr(); // Handy access 746 const TypePtr *r0 = t1->make_ptr(); // Handy access
747 const TypePtr *r1 = t2->is_narrowoop()->make_oopptr(); 747 const TypePtr *r1 = t2->make_ptr();
748 748
749 // Undefined inputs makes for an undefined result 749 // Undefined inputs makes for an undefined result
750 if( TypePtr::above_centerline(r0->_ptr) || 750 if( TypePtr::above_centerline(r0->_ptr) ||
751 TypePtr::above_centerline(r1->_ptr) ) 751 TypePtr::above_centerline(r1->_ptr) )
752 return Type::TOP; 752 return Type::TOP;