c1_Compilation.hpp revision 1879:f95d63e2154a
155714Skris/* 255714Skris * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. 355714Skris * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 455714Skris * 555714Skris * This code is free software; you can redistribute it and/or modify it 655714Skris * under the terms of the GNU General Public License version 2 only, as 755714Skris * published by the Free Software Foundation. 855714Skris * 955714Skris * This code is distributed in the hope that it will be useful, but WITHOUT 1055714Skris * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 1155714Skris * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 1255714Skris * version 2 for more details (a copy is included in the LICENSE file that 1355714Skris * accompanied this code). 1455714Skris * 1555714Skris * You should have received a copy of the GNU General Public License version 1655714Skris * 2 along with this work; if not, write to the Free Software Foundation, 1755714Skris * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 1855714Skris * 1955714Skris * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2055714Skris * or visit www.oracle.com if you need additional information or have any 2155714Skris * questions. 2255714Skris * 2355714Skris */ 2455714Skris 2555714Skris#ifndef SHARE_VM_C1_C1_COMPILATION_HPP 2655714Skris#define SHARE_VM_C1_C1_COMPILATION_HPP 2755714Skris 2855714Skris#include "ci/ciEnv.hpp" 2955714Skris#include "code/exceptionHandlerTable.hpp" 3055714Skris#include "memory/resourceArea.hpp" 3155714Skris 3255714Skrisclass CompilationResourceObj; 3355714Skrisclass XHandlers; 3455714Skrisclass ExceptionInfo; 3555714Skrisclass DebugInformationRecorder; 3655714Skrisclass FrameMap; 3755714Skrisclass IR; 3855714Skrisclass IRScope; 3955714Skrisclass Instruction; 4055714Skrisclass LinearScan; 4155714Skrisclass OopMap; 4255714Skrisclass LIR_Emitter; 4355714Skrisclass LIR_Assembler; 4455714Skrisclass CodeEmitInfo; 4555714Skrisclass ciEnv; 4655714Skrisclass ciMethod; 4755714Skrisclass ValueStack; 4855714Skrisclass LIR_OprDesc; 4955714Skrisclass C1_MacroAssembler; 5055714Skrisclass CFGPrinter; 5155714Skristypedef LIR_OprDesc* LIR_Opr; 5255714Skris 5355714Skris 5455714Skrisdefine_array(BasicTypeArray, BasicType) 5555714Skrisdefine_stack(BasicTypeList, BasicTypeArray) 5655714Skris 5755714Skrisdefine_array(ExceptionInfoArray, ExceptionInfo*) 5855714Skrisdefine_stack(ExceptionInfoList, ExceptionInfoArray) 5955714Skris 6055714Skrisclass Compilation: public StackObj { 6155714Skris friend class CompilationResourceObj; 6255714Skris private: 6355714Skris // compilation specifics 6455714Skris Arena* _arena; 65109998Smarkm int _next_id; 66109998Smarkm int _next_block_id; 67109998Smarkm AbstractCompiler* _compiler; 68109998Smarkm ciEnv* _env; 69109998Smarkm ciMethod* _method; 70109998Smarkm int _osr_bci; 7155714Skris IR* _hir; 7255714Skris int _max_spills; 7355714Skris FrameMap* _frame_map; 7455714Skris C1_MacroAssembler* _masm; 7555714Skris bool _has_exception_handlers; 7655714Skris bool _has_fpu_code; 7755714Skris bool _has_unsafe_access; 7855714Skris bool _would_profile; 7955714Skris bool _has_method_handle_invokes; // True if this method has MethodHandle invokes. 8055714Skris const char* _bailout_msg; 8155714Skris ExceptionInfoList* _exception_info_list; 8255714Skris ExceptionHandlerTable _exception_handler_table; 8355714Skris ImplicitExceptionTable _implicit_exception_table; 8455714Skris LinearScan* _allocator; 8555714Skris CodeOffsets _offsets; 8655714Skris CodeBuffer _code; 8755714Skris 8855714Skris // compilation helpers 8955714Skris void initialize(); 9055714Skris void build_hir(); 91109998Smarkm void emit_lir(); 9255714Skris 93109998Smarkm void emit_code_epilog(LIR_Assembler* assembler); 94109998Smarkm int emit_code_body(); 9555714Skris 9655714Skris int compile_java_method(); 9755714Skris void install_code(int frame_size); 9855714Skris void compile_method(); 9955714Skris 10055714Skris void generate_exception_handler_table(); 101109998Smarkm 10255714Skris ExceptionInfoList* exception_info_list() const { return _exception_info_list; } 103109998Smarkm ExceptionHandlerTable* exception_handler_table() { return &_exception_handler_table; } 104109998Smarkm 10555714Skris LinearScan* allocator() { return _allocator; } 10655714Skris void set_allocator(LinearScan* allocator) { _allocator = allocator; } 10755714Skris 10855714Skris Instruction* _current_instruction; // the instruction currently being processed 10955714Skris#ifndef PRODUCT 11055714Skris Instruction* _last_instruction_printed; // the last instruction printed during traversal 11155714Skris#endif // PRODUCT 11255714Skris 11355714Skris public: 11455714Skris // creation 11555714Skris Compilation(AbstractCompiler* compiler, ciEnv* env, ciMethod* method, 11655714Skris int osr_bci, BufferBlob* buffer_blob); 11755714Skris ~Compilation(); 11855714Skris 11955714Skris 12055714Skris static Compilation* current() { 12155714Skris return (Compilation*) ciEnv::current()->compiler_data(); 12255714Skris } 123 124 // accessors 125 ciEnv* env() const { return _env; } 126 AbstractCompiler* compiler() const { return _compiler; } 127 bool has_exception_handlers() const { return _has_exception_handlers; } 128 bool has_fpu_code() const { return _has_fpu_code; } 129 bool has_unsafe_access() const { return _has_unsafe_access; } 130 ciMethod* method() const { return _method; } 131 int osr_bci() const { return _osr_bci; } 132 bool is_osr_compile() const { return osr_bci() >= 0; } 133 IR* hir() const { return _hir; } 134 int max_spills() const { return _max_spills; } 135 FrameMap* frame_map() const { return _frame_map; } 136 CodeBuffer* code() { return &_code; } 137 C1_MacroAssembler* masm() const { return _masm; } 138 CodeOffsets* offsets() { return &_offsets; } 139 Arena* arena() { return _arena; } 140 141 // Instruction ids 142 int get_next_id() { return _next_id++; } 143 int number_of_instructions() const { return _next_id; } 144 145 // BlockBegin ids 146 int get_next_block_id() { return _next_block_id++; } 147 int number_of_blocks() const { return _next_block_id; } 148 149 // setters 150 void set_has_exception_handlers(bool f) { _has_exception_handlers = f; } 151 void set_has_fpu_code(bool f) { _has_fpu_code = f; } 152 void set_has_unsafe_access(bool f) { _has_unsafe_access = f; } 153 void set_would_profile(bool f) { _would_profile = f; } 154 // Add a set of exception handlers covering the given PC offset 155 void add_exception_handlers_for_pco(int pco, XHandlers* exception_handlers); 156 // Statistics gathering 157 void notice_inlined_method(ciMethod* method); 158 159 // JSR 292 160 bool has_method_handle_invokes() const { return _has_method_handle_invokes; } 161 void set_has_method_handle_invokes(bool z) { _has_method_handle_invokes = z; } 162 163 DebugInformationRecorder* debug_info_recorder() const; // = _env->debug_info(); 164 Dependencies* dependency_recorder() const; // = _env->dependencies() 165 ImplicitExceptionTable* implicit_exception_table() { return &_implicit_exception_table; } 166 167 Instruction* current_instruction() const { return _current_instruction; } 168 Instruction* set_current_instruction(Instruction* instr) { 169 Instruction* previous = _current_instruction; 170 _current_instruction = instr; 171 return previous; 172 } 173 174#ifndef PRODUCT 175 void maybe_print_current_instruction(); 176#endif // PRODUCT 177 178 // error handling 179 void bailout(const char* msg); 180 bool bailed_out() const { return _bailout_msg != NULL; } 181 const char* bailout_msg() const { return _bailout_msg; } 182 183 static int desired_max_code_buffer_size() { 184#ifndef PPC 185 return (int) NMethodSizeLimit; // default 256K or 512K 186#else 187 // conditional branches on PPC are restricted to 16 bit signed 188 return MIN2((unsigned int)NMethodSizeLimit,32*K); 189#endif 190 } 191 static int desired_max_constant_size() { 192 return desired_max_code_buffer_size() / 10; 193 } 194 195 static void setup_code_buffer(CodeBuffer* cb, int call_stub_estimate); 196 197 // timers 198 static void print_timers(); 199 200#ifndef PRODUCT 201 // debugging support. 202 // produces a file named c1compileonly in the current directory with 203 // directives to compile only the current method and it's inlines. 204 // The file can be passed to the command line option -XX:Flags=<filename> 205 void compile_only_this_method(); 206 void compile_only_this_scope(outputStream* st, IRScope* scope); 207 void exclude_this_method(); 208#endif // PRODUCT 209 210 bool is_profiling() { 211 return env()->comp_level() == CompLevel_full_profile || 212 env()->comp_level() == CompLevel_limited_profile; 213 } 214 bool count_invocations() { return is_profiling(); } 215 bool count_backedges() { return is_profiling(); } 216 217 // Helpers for generation of profile information 218 bool profile_branches() { 219 return env()->comp_level() == CompLevel_full_profile && 220 C1UpdateMethodData && C1ProfileBranches; 221 } 222 bool profile_calls() { 223 return env()->comp_level() == CompLevel_full_profile && 224 C1UpdateMethodData && C1ProfileCalls; 225 } 226 bool profile_inlined_calls() { 227 return profile_calls() && C1ProfileInlinedCalls; 228 } 229 bool profile_checkcasts() { 230 return env()->comp_level() == CompLevel_full_profile && 231 C1UpdateMethodData && C1ProfileCheckcasts; 232 } 233}; 234 235 236// Macro definitions for unified bailout-support 237// The methods bailout() and bailed_out() are present in all classes 238// that might bailout, but forward all calls to Compilation 239#define BAILOUT(msg) { bailout(msg); return; } 240#define BAILOUT_(msg, res) { bailout(msg); return res; } 241 242#define CHECK_BAILOUT() { if (bailed_out()) return; } 243#define CHECK_BAILOUT_(res) { if (bailed_out()) return res; } 244 245 246class InstructionMark: public StackObj { 247 private: 248 Compilation* _compilation; 249 Instruction* _previous; 250 251 public: 252 InstructionMark(Compilation* compilation, Instruction* instr) { 253 _compilation = compilation; 254 _previous = _compilation->set_current_instruction(instr); 255 } 256 ~InstructionMark() { 257 _compilation->set_current_instruction(_previous); 258 } 259}; 260 261 262//---------------------------------------------------------------------- 263// Base class for objects allocated by the compiler in the compilation arena 264class CompilationResourceObj ALLOCATION_SUPER_CLASS_SPEC { 265 public: 266 void* operator new(size_t size) { return Compilation::current()->arena()->Amalloc(size); } 267 void* operator new(size_t size, Arena* arena) { 268 return arena->Amalloc(size); 269 } 270 void operator delete(void* p) {} // nothing to do 271}; 272 273 274//---------------------------------------------------------------------- 275// Class for aggregating exception handler information. 276 277// Effectively extends XHandlers class with PC offset of 278// potentially exception-throwing instruction. 279// This class is used at the end of the compilation to build the 280// ExceptionHandlerTable. 281class ExceptionInfo: public CompilationResourceObj { 282 private: 283 int _pco; // PC of potentially exception-throwing instruction 284 XHandlers* _exception_handlers; // flat list of exception handlers covering this PC 285 286 public: 287 ExceptionInfo(int pco, XHandlers* exception_handlers) 288 : _pco(pco) 289 , _exception_handlers(exception_handlers) 290 { } 291 292 int pco() { return _pco; } 293 XHandlers* exception_handlers() { return _exception_handlers; } 294}; 295 296#endif // SHARE_VM_C1_C1_COMPILATION_HPP 297