Mercurial > hg > truffle
comparison src/share/vm/opto/callnode.hpp @ 14909:4ca6dc0799b6
Backout jdk9 merge
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Tue, 01 Apr 2014 13:57:07 +0200 |
parents | ad6695638a35 |
children | 52b4284cb496 |
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14908:8db6e76cb658 | 14909:4ca6dc0799b6 |
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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); |