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comparison src/share/vm/opto/callnode.hpp @ 14909:4ca6dc0799b6

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Backout jdk9 merge
author Gilles Duboscq <duboscq@ssw.jku.at>
date Tue, 01 Apr 2014 13:57:07 +0200
parents ad6695638a35
children 52b4284cb496
comparison
equal deleted inserted replaced
14908:8db6e76cb658 14909:4ca6dc0799b6
297 297
298 // Miscellaneous utility functions 298 // Miscellaneous utility functions
299 JVMState* clone_deep(Compile* C) const; // recursively clones caller chain 299 JVMState* clone_deep(Compile* C) const; // recursively clones caller chain
300 JVMState* clone_shallow(Compile* C) const; // retains uncloned caller 300 JVMState* clone_shallow(Compile* C) const; // retains uncloned caller
301 void set_map_deep(SafePointNode *map);// reset map for all callers 301 void set_map_deep(SafePointNode *map);// reset map for all callers
302 void adapt_position(int delta); // Adapt offsets in in-array after adding an edge.
303 302
304 #ifndef PRODUCT 303 #ifndef PRODUCT
305 void format(PhaseRegAlloc *regalloc, const Node *n, outputStream* st) const; 304 void format(PhaseRegAlloc *regalloc, const Node *n, outputStream* st) const;
306 void dump_spec(outputStream *st) const; 305 void dump_spec(outputStream *st) const;
307 void dump_on(outputStream* st) const; 306 void dump_on(outputStream* st) const;
558 virtual Node *match( const ProjNode *proj, const Matcher *m ); 557 virtual Node *match( const ProjNode *proj, const Matcher *m );
559 virtual uint ideal_reg() const { return NotAMachineReg; } 558 virtual uint ideal_reg() const { return NotAMachineReg; }
560 // Are we guaranteed that this node is a safepoint? Not true for leaf calls and 559 // Are we guaranteed that this node is a safepoint? Not true for leaf calls and
561 // for some macro nodes whose expansion does not have a safepoint on the fast path. 560 // for some macro nodes whose expansion does not have a safepoint on the fast path.
562 virtual bool guaranteed_safepoint() { return true; } 561 virtual bool guaranteed_safepoint() { return true; }
563 // For macro nodes, the JVMState gets modified during expansion. If calls 562 // For macro nodes, the JVMState gets modified during expansion, so when cloning
564 // use MachConstantBase, it gets modified during matching. So when cloning 563 // the node the JVMState must be cloned.
565 // the node the JVMState must be cloned. Default is not to clone. 564 virtual void clone_jvms(Compile* C) { } // default is not to clone
566 virtual void clone_jvms(Compile* C) {
567 if (C->needs_clone_jvms() && jvms() != NULL) {
568 set_jvms(jvms()->clone_deep(C));
569 jvms()->set_map_deep(this);
570 }
571 }
572 565
573 // Returns true if the call may modify n 566 // Returns true if the call may modify n
574 virtual bool may_modify(const TypeOopPtr *t_oop, PhaseTransform *phase); 567 virtual bool may_modify(const TypeOopPtr *t_oop, PhaseTransform *phase);
575 // Does this node have a use of n other than in debug information? 568 // Does this node have a use of n other than in debug information?
576 bool has_non_debug_use(Node *n); 569 bool has_non_debug_use(Node *n);