599 case PhiLocationDifferToInputLocation:
600 return "PhiLocationDifferToInputLocationSpillCopy";
601 case BasePointerToMem:
602 return "BasePointerToMemSpillCopy";
603 case InputToRematerialization:
604 return "InputToRematerializationSpillCopy";
605 case CallUse:
606 return "CallUseSpillCopy";
607 case Bound:
608 return "BoundSpillCopy";
609 default:
610 assert(false, "Must have valid spill type");
611 return "MachSpillCopy";
612 }
613 }
614
615 virtual void format( PhaseRegAlloc *, outputStream *st ) const;
616 #endif
617 };
618
619 //------------------------------MachBranchNode--------------------------------
620 // Abstract machine branch Node
621 class MachBranchNode : public MachIdealNode {
622 public:
623 MachBranchNode() : MachIdealNode() {
624 init_class_id(Class_MachBranch);
625 }
626 virtual void label_set(Label* label, uint block_num) = 0;
627 virtual void save_label(Label** label, uint* block_num) = 0;
628
629 // Support for short branches
630 virtual MachNode *short_branch_version() { return NULL; }
631
632 virtual bool pinned() const { return true; };
633 };
634
635 //------------------------------MachNullChkNode--------------------------------
636 // Machine-dependent null-pointer-check Node. Points a real MachNode that is
637 // also some kind of memory op. Turns the indicated MachNode into a
638 // conditional branch with good latency on the ptr-not-null path and awful
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599 case PhiLocationDifferToInputLocation:
600 return "PhiLocationDifferToInputLocationSpillCopy";
601 case BasePointerToMem:
602 return "BasePointerToMemSpillCopy";
603 case InputToRematerialization:
604 return "InputToRematerializationSpillCopy";
605 case CallUse:
606 return "CallUseSpillCopy";
607 case Bound:
608 return "BoundSpillCopy";
609 default:
610 assert(false, "Must have valid spill type");
611 return "MachSpillCopy";
612 }
613 }
614
615 virtual void format( PhaseRegAlloc *, outputStream *st ) const;
616 #endif
617 };
618
619 // MachMergeNode is similar to a PhiNode in a sense it merges multiple values,
620 // however it doesn't have a control input and is more like a MergeMem.
621 // It is inserted after the register allocation is done to ensure that nodes use single
622 // definition of a multidef lrg in a block.
623 class MachMergeNode : public MachIdealNode {
624 public:
625 MachMergeNode(Node *n1) {
626 init_class_id(Class_MachMerge);
627 add_req(NULL);
628 add_req(n1);
629 }
630 virtual const RegMask &out_RegMask() const { return in(1)->out_RegMask(); }
631 virtual const RegMask &in_RegMask(uint idx) const { return in(1)->in_RegMask(idx); }
632 virtual const class Type *bottom_type() const { return in(1)->bottom_type(); }
633 virtual uint ideal_reg() const { return bottom_type()->ideal_reg(); }
634 virtual uint oper_input_base() const { return 1; }
635 virtual void emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const { }
636 virtual uint size(PhaseRegAlloc *ra_) const { return 0; }
637 #ifndef PRODUCT
638 virtual const char *Name() const { return "MachMerge"; }
639 #endif
640 };
641
642 //------------------------------MachBranchNode--------------------------------
643 // Abstract machine branch Node
644 class MachBranchNode : public MachIdealNode {
645 public:
646 MachBranchNode() : MachIdealNode() {
647 init_class_id(Class_MachBranch);
648 }
649 virtual void label_set(Label* label, uint block_num) = 0;
650 virtual void save_label(Label** label, uint* block_num) = 0;
651
652 // Support for short branches
653 virtual MachNode *short_branch_version() { return NULL; }
654
655 virtual bool pinned() const { return true; };
656 };
657
658 //------------------------------MachNullChkNode--------------------------------
659 // Machine-dependent null-pointer-check Node. Points a real MachNode that is
660 // also some kind of memory op. Turns the indicated MachNode into a
661 // conditional branch with good latency on the ptr-not-null path and awful
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