Mercurial > hg > release > icedtea-1.9
view ports/hotspot/src/share/vm/shark/sharkState.hpp @ 1736:1b78a216c47e
2009-03-13 Gary Benson <gbenson@redhat.com>
* ports/hotspot/src/share/vm/shark/sharkState.hpp
(SharkEntryState): Moved from sharkFunction.cpp.
(SharkPHIState): Moved from sharkTopLevelBlock.cpp.
* ports/hotspot/src/share/vm/shark/sharkState.hpp
(SharkEntryState::SharkEntryState): Moved from sharkFunction.cpp.
(SharkPHIState::SharkPHIState): Moved from sharkTopLevelBlock.cpp.
(SharkPHIState::add_incoming): Likewise.
* ports/hotspot/src/share/vm/shark/sharkFunction.cpp
(SharkEntryState): Removed.
* ports/hotspot/src/share/vm/shark/sharkTopLevelBlock.cpp
(SharkPHIState): Likewise.
(transplanted from 8ad9d28381c535b4c4a80aa08b14e7e556875ccf)
author | Gary Benson <gbenson@redhat.com> |
---|---|
date | Fri, 13 Mar 2009 05:43:37 -0400 |
parents | c8fd76f04b59 |
children | f88af1647dad |
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/* * Copyright 1999-2007 Sun Microsystems, Inc. All Rights Reserved. * Copyright 2008, 2009 Red Hat, Inc. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ class SharkBlock; class SharkFunction; class SharkTopLevelBlock; class SharkState : public ResourceObj { public: SharkState(SharkBlock* block, SharkFunction* function = NULL, llvm::Value* method = NULL); SharkState(const SharkState* state); private: void initialize(const SharkState* state); private: SharkBlock* _block; SharkFunction* _function; llvm::Value* _method; SharkValue** _locals; SharkValue** _stack; SharkValue** _sp; public: SharkBlock *block() const { return _block; } SharkFunction *function() const { return _function; } public: inline SharkBuilder* builder() const; inline int max_locals() const; inline int max_stack() const; // Method public: llvm::Value** method_addr() { return &_method; } llvm::Value* method() const { return _method; } void set_method(llvm::Value* method) { _method = method; } // Local variables public: SharkValue** local_addr(int index) const { assert(index >= 0 && index < max_locals(), "bad local variable index"); return &_locals[index]; } SharkValue* local(int index) const { return *local_addr(index); } void set_local(int index, SharkValue* value) { *local_addr(index) = value; } // Expression stack public: SharkValue** stack_addr(int slot) const { assert(slot >= 0 && slot < stack_depth(), "bad stack slot"); return &_sp[-(slot + 1)]; } SharkValue* stack(int slot) const { return *stack_addr(slot); } protected: void set_stack(int slot, SharkValue* value) { *stack_addr(slot) = value; } public: int stack_depth() const { return _sp - _stack; } void push(SharkValue* value) { assert(stack_depth() < max_stack(), "stack overrun"); *(_sp++) = value; } SharkValue* pop() { assert(stack_depth() > 0, "stack underrun"); return *(--_sp); } void pop(int slots) { assert(stack_depth() >= slots, "stack underrun"); _sp -= slots; } // Copy and merge public: SharkState* copy() const { return new SharkState(this); } void merge(SharkState* other, llvm::BasicBlock* other_block, llvm::BasicBlock* this_block); // Cache and decache public: void decache_for_Java_call(ciMethod* callee); void cache_after_Java_call(ciMethod* callee); void decache_for_VM_call(); void cache_after_VM_call(); void decache_for_trap(); }; // SharkEntryState objects are used to manage the state // that the method will be entered with. class SharkEntryState : public SharkState { public: SharkEntryState(SharkTopLevelBlock* block, llvm::Value* method); }; // SharkPHIState objects are used to manage the entry state // for blocks with more than one entry path or for blocks // entered from blocks that will be compiled later. class SharkPHIState : public SharkState { public: SharkPHIState(SharkTopLevelBlock* block); public: void add_incoming(SharkState* incoming_state); };