| /* |
| * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. |
| * 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_C1_C1_COMPILATION_HPP |
| #define SHARE_VM_C1_C1_COMPILATION_HPP |
| |
| #include "ci/ciEnv.hpp" |
| #include "ci/ciMethodData.hpp" |
| #include "code/exceptionHandlerTable.hpp" |
| #include "memory/resourceArea.hpp" |
| #include "runtime/deoptimization.hpp" |
| |
| class CompilationResourceObj; |
| class XHandlers; |
| class ExceptionInfo; |
| class DebugInformationRecorder; |
| class FrameMap; |
| class IR; |
| class IRScope; |
| class Instruction; |
| class LinearScan; |
| class OopMap; |
| class LIR_Emitter; |
| class LIR_Assembler; |
| class CodeEmitInfo; |
| class ciEnv; |
| class ciMethod; |
| class ValueStack; |
| class LIR_OprDesc; |
| class C1_MacroAssembler; |
| class CFGPrinter; |
| typedef LIR_OprDesc* LIR_Opr; |
| |
| |
| define_array(BasicTypeArray, BasicType) |
| define_stack(BasicTypeList, BasicTypeArray) |
| |
| define_array(ExceptionInfoArray, ExceptionInfo*) |
| define_stack(ExceptionInfoList, ExceptionInfoArray) |
| |
| class Compilation: public StackObj { |
| friend class CompilationResourceObj; |
| private: |
| // compilation specifics |
| Arena* _arena; |
| int _next_id; |
| int _next_block_id; |
| AbstractCompiler* _compiler; |
| ciEnv* _env; |
| CompileLog* _log; |
| ciMethod* _method; |
| int _osr_bci; |
| IR* _hir; |
| int _max_spills; |
| FrameMap* _frame_map; |
| C1_MacroAssembler* _masm; |
| bool _has_exception_handlers; |
| bool _has_fpu_code; |
| bool _has_unsafe_access; |
| bool _would_profile; |
| bool _has_method_handle_invokes; // True if this method has MethodHandle invokes. |
| const char* _bailout_msg; |
| ExceptionInfoList* _exception_info_list; |
| ExceptionHandlerTable _exception_handler_table; |
| ImplicitExceptionTable _implicit_exception_table; |
| LinearScan* _allocator; |
| CodeOffsets _offsets; |
| CodeBuffer _code; |
| bool _has_access_indexed; |
| |
| // compilation helpers |
| void initialize(); |
| void build_hir(); |
| void emit_lir(); |
| |
| void emit_code_epilog(LIR_Assembler* assembler); |
| int emit_code_body(); |
| |
| int compile_java_method(); |
| void install_code(int frame_size); |
| void compile_method(); |
| |
| void generate_exception_handler_table(); |
| |
| ExceptionInfoList* exception_info_list() const { return _exception_info_list; } |
| ExceptionHandlerTable* exception_handler_table() { return &_exception_handler_table; } |
| |
| LinearScan* allocator() { return _allocator; } |
| void set_allocator(LinearScan* allocator) { _allocator = allocator; } |
| |
| Instruction* _current_instruction; // the instruction currently being processed |
| #ifndef PRODUCT |
| Instruction* _last_instruction_printed; // the last instruction printed during traversal |
| #endif // PRODUCT |
| |
| public: |
| // creation |
| Compilation(AbstractCompiler* compiler, ciEnv* env, ciMethod* method, |
| int osr_bci, BufferBlob* buffer_blob); |
| ~Compilation(); |
| |
| |
| static Compilation* current() { |
| return (Compilation*) ciEnv::current()->compiler_data(); |
| } |
| |
| // accessors |
| ciEnv* env() const { return _env; } |
| CompileLog* log() const { return _log; } |
| AbstractCompiler* compiler() const { return _compiler; } |
| bool has_exception_handlers() const { return _has_exception_handlers; } |
| bool has_fpu_code() const { return _has_fpu_code; } |
| bool has_unsafe_access() const { return _has_unsafe_access; } |
| int max_vector_size() const { return 0; } |
| ciMethod* method() const { return _method; } |
| int osr_bci() const { return _osr_bci; } |
| bool is_osr_compile() const { return osr_bci() >= 0; } |
| IR* hir() const { return _hir; } |
| int max_spills() const { return _max_spills; } |
| FrameMap* frame_map() const { return _frame_map; } |
| CodeBuffer* code() { return &_code; } |
| C1_MacroAssembler* masm() const { return _masm; } |
| CodeOffsets* offsets() { return &_offsets; } |
| Arena* arena() { return _arena; } |
| bool has_access_indexed() { return _has_access_indexed; } |
| |
| // Instruction ids |
| int get_next_id() { return _next_id++; } |
| int number_of_instructions() const { return _next_id; } |
| |
| // BlockBegin ids |
| int get_next_block_id() { return _next_block_id++; } |
| int number_of_blocks() const { return _next_block_id; } |
| |
| // setters |
| void set_has_exception_handlers(bool f) { _has_exception_handlers = f; } |
| void set_has_fpu_code(bool f) { _has_fpu_code = f; } |
| void set_has_unsafe_access(bool f) { _has_unsafe_access = f; } |
| void set_would_profile(bool f) { _would_profile = f; } |
| void set_has_access_indexed(bool f) { _has_access_indexed = f; } |
| // Add a set of exception handlers covering the given PC offset |
| void add_exception_handlers_for_pco(int pco, XHandlers* exception_handlers); |
| // Statistics gathering |
| void notice_inlined_method(ciMethod* method); |
| |
| // JSR 292 |
| bool has_method_handle_invokes() const { return _has_method_handle_invokes; } |
| void set_has_method_handle_invokes(bool z) { _has_method_handle_invokes = z; } |
| |
| DebugInformationRecorder* debug_info_recorder() const; // = _env->debug_info(); |
| Dependencies* dependency_recorder() const; // = _env->dependencies() |
| ImplicitExceptionTable* implicit_exception_table() { return &_implicit_exception_table; } |
| |
| Instruction* current_instruction() const { return _current_instruction; } |
| Instruction* set_current_instruction(Instruction* instr) { |
| Instruction* previous = _current_instruction; |
| _current_instruction = instr; |
| return previous; |
| } |
| |
| #ifndef PRODUCT |
| void maybe_print_current_instruction(); |
| #endif // PRODUCT |
| |
| // error handling |
| void bailout(const char* msg); |
| bool bailed_out() const { return _bailout_msg != NULL; } |
| const char* bailout_msg() const { return _bailout_msg; } |
| |
| static int desired_max_code_buffer_size() { |
| #ifndef PPC |
| return (int) NMethodSizeLimit; // default 256K or 512K |
| #else |
| // conditional branches on PPC are restricted to 16 bit signed |
| return MIN2((unsigned int)NMethodSizeLimit,32*K); |
| #endif |
| } |
| static int desired_max_constant_size() { |
| return desired_max_code_buffer_size() / 10; |
| } |
| |
| static bool setup_code_buffer(CodeBuffer* cb, int call_stub_estimate); |
| |
| // timers |
| static void print_timers(); |
| |
| #ifndef PRODUCT |
| // debugging support. |
| // produces a file named c1compileonly in the current directory with |
| // directives to compile only the current method and it's inlines. |
| // The file can be passed to the command line option -XX:Flags=<filename> |
| void compile_only_this_method(); |
| void compile_only_this_scope(outputStream* st, IRScope* scope); |
| void exclude_this_method(); |
| #endif // PRODUCT |
| |
| bool is_profiling() { |
| return env()->comp_level() == CompLevel_full_profile || |
| env()->comp_level() == CompLevel_limited_profile; |
| } |
| bool count_invocations() { return is_profiling(); } |
| bool count_backedges() { return is_profiling(); } |
| |
| // Helpers for generation of profile information |
| bool profile_branches() { |
| return env()->comp_level() == CompLevel_full_profile && |
| C1UpdateMethodData && C1ProfileBranches; |
| } |
| bool profile_calls() { |
| return env()->comp_level() == CompLevel_full_profile && |
| C1UpdateMethodData && C1ProfileCalls; |
| } |
| bool profile_inlined_calls() { |
| return profile_calls() && C1ProfileInlinedCalls; |
| } |
| bool profile_checkcasts() { |
| return env()->comp_level() == CompLevel_full_profile && |
| C1UpdateMethodData && C1ProfileCheckcasts; |
| } |
| bool profile_parameters() { |
| return env()->comp_level() == CompLevel_full_profile && |
| C1UpdateMethodData && MethodData::profile_parameters(); |
| } |
| bool profile_arguments() { |
| return env()->comp_level() == CompLevel_full_profile && |
| C1UpdateMethodData && MethodData::profile_arguments(); |
| } |
| bool profile_return() { |
| return env()->comp_level() == CompLevel_full_profile && |
| C1UpdateMethodData && MethodData::profile_return(); |
| } |
| // will compilation make optimistic assumptions that might lead to |
| // deoptimization and that the runtime will account for? |
| bool is_optimistic() const { |
| return !TieredCompilation && |
| (RangeCheckElimination || UseLoopInvariantCodeMotion) && |
| method()->method_data()->trap_count(Deoptimization::Reason_none) == 0; |
| } |
| |
| ciKlass* cha_exact_type(ciType* type); |
| }; |
| |
| |
| // Macro definitions for unified bailout-support |
| // The methods bailout() and bailed_out() are present in all classes |
| // that might bailout, but forward all calls to Compilation |
| #define BAILOUT(msg) { bailout(msg); return; } |
| #define BAILOUT_(msg, res) { bailout(msg); return res; } |
| |
| #define CHECK_BAILOUT() { if (bailed_out()) return; } |
| #define CHECK_BAILOUT_(res) { if (bailed_out()) return res; } |
| |
| |
| class InstructionMark: public StackObj { |
| private: |
| Compilation* _compilation; |
| Instruction* _previous; |
| |
| public: |
| InstructionMark(Compilation* compilation, Instruction* instr) { |
| _compilation = compilation; |
| _previous = _compilation->set_current_instruction(instr); |
| } |
| ~InstructionMark() { |
| _compilation->set_current_instruction(_previous); |
| } |
| }; |
| |
| |
| //---------------------------------------------------------------------- |
| // Base class for objects allocated by the compiler in the compilation arena |
| class CompilationResourceObj ALLOCATION_SUPER_CLASS_SPEC { |
| public: |
| void* operator new(size_t size) throw() { return Compilation::current()->arena()->Amalloc(size); } |
| void* operator new(size_t size, Arena* arena) throw() { |
| return arena->Amalloc(size); |
| } |
| void operator delete(void* p) {} // nothing to do |
| }; |
| |
| |
| //---------------------------------------------------------------------- |
| // Class for aggregating exception handler information. |
| |
| // Effectively extends XHandlers class with PC offset of |
| // potentially exception-throwing instruction. |
| // This class is used at the end of the compilation to build the |
| // ExceptionHandlerTable. |
| class ExceptionInfo: public CompilationResourceObj { |
| private: |
| int _pco; // PC of potentially exception-throwing instruction |
| XHandlers* _exception_handlers; // flat list of exception handlers covering this PC |
| |
| public: |
| ExceptionInfo(int pco, XHandlers* exception_handlers) |
| : _pco(pco) |
| , _exception_handlers(exception_handlers) |
| { } |
| |
| int pco() { return _pco; } |
| XHandlers* exception_handlers() { return _exception_handlers; } |
| }; |
| |
| #endif // SHARE_VM_C1_C1_COMPILATION_HPP |