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comparison src/share/vm/opto/callnode.hpp @ 366:8261ee795323

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6711100: 64bit fastdebug server vm crashes with assert(_base == Int,"Not an Int") Summary: insert CastII nodes to narrow type of load_array_length() node Reviewed-by: never, kvn
author rasbold
date Wed, 17 Sep 2008 08:29:17 -0700
parents d1605aabd0a1
children a1980da045cc
comparison
equal deleted inserted replaced
333:7484fa4b8825 366:8261ee795323
753 set_req(AllocateNode::ALength, count_val); 753 set_req(AllocateNode::ALength, count_val);
754 } 754 }
755 virtual int Opcode() const; 755 virtual int Opcode() const;
756 virtual uint size_of() const; // Size is bigger 756 virtual uint size_of() const; // Size is bigger
757 757
758 // Dig the length operand out of a array allocation site.
759 Node* Ideal_length() {
760 return in(AllocateNode::ALength);
761 }
762
763 // Dig the length operand out of a array allocation site and narrow the
764 // type with a CastII, if necesssary
765 Node* make_ideal_length(const TypeOopPtr* ary_type, PhaseTransform *phase, bool can_create = true);
766
758 // Pattern-match a possible usage of AllocateArrayNode. 767 // Pattern-match a possible usage of AllocateArrayNode.
759 // Return null if no allocation is recognized. 768 // Return null if no allocation is recognized.
760 static AllocateArrayNode* Ideal_array_allocation(Node* ptr, PhaseTransform* phase) { 769 static AllocateArrayNode* Ideal_array_allocation(Node* ptr, PhaseTransform* phase) {
761 AllocateNode* allo = Ideal_allocation(ptr, phase); 770 AllocateNode* allo = Ideal_allocation(ptr, phase);
762 return (allo == NULL || !allo->is_AllocateArray()) 771 return (allo == NULL || !allo->is_AllocateArray())
763 ? NULL : allo->as_AllocateArray(); 772 ? NULL : allo->as_AllocateArray();
764 }
765
766 // Dig the length operand out of a (possible) array allocation site.
767 static Node* Ideal_length(Node* ptr, PhaseTransform* phase) {
768 AllocateArrayNode* allo = Ideal_array_allocation(ptr, phase);
769 return (allo == NULL) ? NULL : allo->in(AllocateNode::ALength);
770 } 773 }
771 }; 774 };
772 775
773 //------------------------------AbstractLockNode----------------------------------- 776 //------------------------------AbstractLockNode-----------------------------------
774 class AbstractLockNode: public CallNode { 777 class AbstractLockNode: public CallNode {