Mercurial > hg > truffle
view src/share/vm/shark/sharkCacheDecache.hpp @ 14064:fe8d6e12c75e
Merge.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Wed, 05 Mar 2014 10:32:19 +0100 |
parents | 2cd5e15048e6 |
children |
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/* * Copyright (c) 1999, 2010, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef SHARE_VM_SHARK_SHARKCACHEDECACHE_HPP #define SHARE_VM_SHARK_SHARKCACHEDECACHE_HPP #include "ci/ciMethod.hpp" #include "code/debugInfoRec.hpp" #include "shark/sharkBuilder.hpp" #include "shark/sharkFunction.hpp" #include "shark/sharkStateScanner.hpp" // Class hierarchy: // - SharkStateScanner // - SharkCacherDecacher // - SharkDecacher // - SharkJavaCallDecacher // - SharkVMCallDecacher // - SharkTrapDecacher // - SharkCacher // - SharkJavaCallCacher // - SharkVMCallCacher // - SharkFunctionEntryCacher // - SharkNormalEntryCacher // - SharkOSREntryCacher class SharkCacherDecacher : public SharkStateScanner { protected: SharkCacherDecacher(SharkFunction* function) : SharkStateScanner(function) {} // Helper protected: static int adjusted_offset(SharkValue* value, int offset) { if (value->is_two_word()) offset--; return offset; } }; class SharkDecacher : public SharkCacherDecacher { protected: SharkDecacher(SharkFunction* function, int bci) : SharkCacherDecacher(function), _bci(bci) {} private: int _bci; protected: int bci() const { return _bci; } private: int _pc_offset; OopMap* _oopmap; GrowableArray<ScopeValue*>* _exparray; GrowableArray<MonitorValue*>* _monarray; GrowableArray<ScopeValue*>* _locarray; private: int pc_offset() const { return _pc_offset; } OopMap* oopmap() const { return _oopmap; } GrowableArray<ScopeValue*>* exparray() const { return _exparray; } GrowableArray<MonitorValue*>* monarray() const { return _monarray; } GrowableArray<ScopeValue*>* locarray() const { return _locarray; } // Callbacks protected: void start_frame(); void start_stack(int stack_depth); void process_stack_slot(int index, SharkValue** value, int offset); void start_monitors(int num_monitors); void process_monitor(int index, int box_offset, int obj_offset); void process_oop_tmp_slot(llvm::Value** value, int offset); void process_method_slot(llvm::Value** value, int offset); void process_pc_slot(int offset); void start_locals(); void process_local_slot(int index, SharkValue** value, int offset); void end_frame(); // oopmap and debuginfo helpers private: static int oopmap_slot_munge(int offset) { return SharkStack::oopmap_slot_munge(offset); } static VMReg slot2reg(int offset) { return SharkStack::slot2reg(offset); } static Location slot2loc(int offset, Location::Type type) { return Location::new_stk_loc(type, offset * wordSize); } static LocationValue* slot2lv(int offset, Location::Type type) { return new LocationValue(slot2loc(offset, type)); } static Location::Type location_type(SharkValue** addr, bool maybe_two_word) { // low addresses this end // Type 32-bit 64-bit // ---------------------------------------------------- // stack[0] local[3] jobject oop oop // stack[1] local[2] NULL normal lng // stack[2] local[1] jlong normal invalid // stack[3] local[0] jint normal normal // // high addresses this end SharkValue *value = *addr; if (value) { if (value->is_jobject()) return Location::oop; #ifdef _LP64 if (value->is_two_word()) return Location::invalid; #endif // _LP64 return Location::normal; } else { if (maybe_two_word) { value = *(addr - 1); if (value && value->is_two_word()) { #ifdef _LP64 if (value->is_jlong()) return Location::lng; if (value->is_jdouble()) return Location::dbl; ShouldNotReachHere(); #else return Location::normal; #endif // _LP64 } } return Location::invalid; } } // Stack slot helpers protected: virtual bool stack_slot_needs_write(int index, SharkValue* value) = 0; virtual bool stack_slot_needs_oopmap(int index, SharkValue* value) = 0; virtual bool stack_slot_needs_debuginfo(int index, SharkValue* value) = 0; static Location::Type stack_location_type(int index, SharkValue** addr) { return location_type(addr, *addr == NULL); } // Local slot helpers protected: virtual bool local_slot_needs_write(int index, SharkValue* value) = 0; virtual bool local_slot_needs_oopmap(int index, SharkValue* value) = 0; virtual bool local_slot_needs_debuginfo(int index, SharkValue* value) = 0; static Location::Type local_location_type(int index, SharkValue** addr) { return location_type(addr, index > 0); } // Writer helper protected: void write_value_to_frame(llvm::Type* type, llvm::Value* value, int offset); }; class SharkJavaCallDecacher : public SharkDecacher { public: SharkJavaCallDecacher(SharkFunction* function, int bci, ciMethod* callee) : SharkDecacher(function, bci), _callee(callee) {} private: ciMethod* _callee; protected: ciMethod* callee() const { return _callee; } // Stack slot helpers protected: bool stack_slot_needs_write(int index, SharkValue* value) { return value && (index < callee()->arg_size() || value->is_jobject()); } bool stack_slot_needs_oopmap(int index, SharkValue* value) { return value && value->is_jobject() && index >= callee()->arg_size(); } bool stack_slot_needs_debuginfo(int index, SharkValue* value) { return index >= callee()->arg_size(); } // Local slot helpers protected: bool local_slot_needs_write(int index, SharkValue* value) { return value && value->is_jobject(); } bool local_slot_needs_oopmap(int index, SharkValue* value) { return value && value->is_jobject(); } bool local_slot_needs_debuginfo(int index, SharkValue* value) { return true; } }; class SharkVMCallDecacher : public SharkDecacher { public: SharkVMCallDecacher(SharkFunction* function, int bci) : SharkDecacher(function, bci) {} // Stack slot helpers protected: bool stack_slot_needs_write(int index, SharkValue* value) { return value && value->is_jobject(); } bool stack_slot_needs_oopmap(int index, SharkValue* value) { return value && value->is_jobject(); } bool stack_slot_needs_debuginfo(int index, SharkValue* value) { return true; } // Local slot helpers protected: bool local_slot_needs_write(int index, SharkValue* value) { return value && value->is_jobject(); } bool local_slot_needs_oopmap(int index, SharkValue* value) { return value && value->is_jobject(); } bool local_slot_needs_debuginfo(int index, SharkValue* value) { return true; } }; class SharkTrapDecacher : public SharkDecacher { public: SharkTrapDecacher(SharkFunction* function, int bci) : SharkDecacher(function, bci) {} // Stack slot helpers protected: bool stack_slot_needs_write(int index, SharkValue* value) { return value != NULL; } bool stack_slot_needs_oopmap(int index, SharkValue* value) { return value && value->is_jobject(); } bool stack_slot_needs_debuginfo(int index, SharkValue* value) { return true; } // Local slot helpers protected: bool local_slot_needs_write(int index, SharkValue* value) { return value != NULL; } bool local_slot_needs_oopmap(int index, SharkValue* value) { return value && value->is_jobject(); } bool local_slot_needs_debuginfo(int index, SharkValue* value) { return true; } }; class SharkCacher : public SharkCacherDecacher { protected: SharkCacher(SharkFunction* function) : SharkCacherDecacher(function) {} // Callbacks protected: void process_stack_slot(int index, SharkValue** value, int offset); void process_oop_tmp_slot(llvm::Value** value, int offset); virtual void process_method_slot(llvm::Value** value, int offset); virtual void process_local_slot(int index, SharkValue** value, int offset); // Stack slot helper protected: virtual bool stack_slot_needs_read(int index, SharkValue* value) = 0; // Local slot helper protected: virtual bool local_slot_needs_read(int index, SharkValue* value) { return value && value->is_jobject(); } // Writer helper protected: llvm::Value* read_value_from_frame(llvm::Type* type, int offset); }; class SharkJavaCallCacher : public SharkCacher { public: SharkJavaCallCacher(SharkFunction* function, ciMethod* callee) : SharkCacher(function), _callee(callee) {} private: ciMethod* _callee; protected: ciMethod* callee() const { return _callee; } // Stack slot helper protected: bool stack_slot_needs_read(int index, SharkValue* value) { return value && (index < callee()->return_type()->size() || value->is_jobject()); } }; class SharkVMCallCacher : public SharkCacher { public: SharkVMCallCacher(SharkFunction* function) : SharkCacher(function) {} // Stack slot helper protected: bool stack_slot_needs_read(int index, SharkValue* value) { return value && value->is_jobject(); } }; class SharkFunctionEntryCacher : public SharkCacher { public: SharkFunctionEntryCacher(SharkFunction* function, llvm::Value* method) : SharkCacher(function), _method(method) {} private: llvm::Value* _method; private: llvm::Value* method() const { return _method; } // Method slot callback protected: void process_method_slot(llvm::Value** value, int offset); // Stack slot helper protected: bool stack_slot_needs_read(int index, SharkValue* value) { ShouldNotReachHere(); // entry block shouldn't have stack } // Local slot helper protected: bool local_slot_needs_read(int index, SharkValue* value) { return value != NULL; } }; class SharkNormalEntryCacher : public SharkFunctionEntryCacher { public: SharkNormalEntryCacher(SharkFunction* function, llvm::Value* method) : SharkFunctionEntryCacher(function, method) {} }; class SharkOSREntryCacher : public SharkFunctionEntryCacher { public: SharkOSREntryCacher(SharkFunction* function, llvm::Value* method, llvm::Value* osr_buf) : SharkFunctionEntryCacher(function, method), _osr_buf( builder()->CreateBitCast( osr_buf, llvm::PointerType::getUnqual( llvm::ArrayType::get( SharkType::intptr_type(), max_locals() + max_monitors() * 2)))) {} private: llvm::Value* _osr_buf; private: llvm::Value* osr_buf() const { return _osr_buf; } // Callbacks protected: void process_monitor(int index, int box_offset, int obj_offset); void process_local_slot(int index, SharkValue** value, int offset); // Helper private: llvm::Value* CreateAddressOfOSRBufEntry(int offset, llvm::Type* type); }; #endif // SHARE_VM_SHARK_SHARKCACHEDECACHE_HPP