| /* |
| * 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 |