Mercurial > hg > truffle
annotate src/share/vm/c1/c1_Compilation.hpp @ 17980:0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
Summary: make compiled code bang the stack by the worst case size of the interpreter frame at deoptimization points.
Reviewed-by: twisti, kvn
| author | roland |
|---|---|
| date | Tue, 01 Apr 2014 09:36:49 +0200 |
| parents | 849eb7bfceac |
| children | 52b4284cb496 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_C1_C1_COMPILATION_HPP |
| 26 #define SHARE_VM_C1_C1_COMPILATION_HPP | |
| 27 | |
| 28 #include "ci/ciEnv.hpp" | |
| 8860 | 29 #include "ci/ciMethodData.hpp" |
| 1972 | 30 #include "code/exceptionHandlerTable.hpp" |
| 31 #include "memory/resourceArea.hpp" | |
| 8860 | 32 #include "runtime/deoptimization.hpp" |
| 1972 | 33 |
| 0 | 34 class CompilationResourceObj; |
| 35 class XHandlers; | |
| 36 class ExceptionInfo; | |
| 37 class DebugInformationRecorder; | |
| 38 class FrameMap; | |
| 39 class IR; | |
| 40 class IRScope; | |
| 41 class Instruction; | |
| 42 class LinearScan; | |
| 43 class OopMap; | |
| 44 class LIR_Emitter; | |
| 45 class LIR_Assembler; | |
| 46 class CodeEmitInfo; | |
| 47 class ciEnv; | |
| 48 class ciMethod; | |
| 49 class ValueStack; | |
| 50 class LIR_OprDesc; | |
| 51 class C1_MacroAssembler; | |
| 52 class CFGPrinter; | |
| 53 typedef LIR_OprDesc* LIR_Opr; | |
| 54 | |
| 55 | |
| 56 define_array(BasicTypeArray, BasicType) | |
| 57 define_stack(BasicTypeList, BasicTypeArray) | |
| 58 | |
| 59 define_array(ExceptionInfoArray, ExceptionInfo*) | |
| 60 define_stack(ExceptionInfoList, ExceptionInfoArray) | |
| 61 | |
| 62 class Compilation: public StackObj { | |
| 63 friend class CompilationResourceObj; | |
| 64 private: | |
| 65 // compilation specifics | |
| 1584 | 66 Arena* _arena; |
| 67 int _next_id; | |
| 68 int _next_block_id; | |
| 0 | 69 AbstractCompiler* _compiler; |
| 70 ciEnv* _env; | |
| 6843 | 71 CompileLog* _log; |
| 0 | 72 ciMethod* _method; |
| 73 int _osr_bci; | |
| 74 IR* _hir; | |
| 75 int _max_spills; | |
| 76 FrameMap* _frame_map; | |
| 77 C1_MacroAssembler* _masm; | |
| 78 bool _has_exception_handlers; | |
| 79 bool _has_fpu_code; | |
| 80 bool _has_unsafe_access; | |
| 1783 | 81 bool _would_profile; |
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82 bool _has_method_handle_invokes; // True if this method has MethodHandle invokes. |
| 0 | 83 const char* _bailout_msg; |
| 84 ExceptionInfoList* _exception_info_list; | |
| 85 ExceptionHandlerTable _exception_handler_table; | |
| 86 ImplicitExceptionTable _implicit_exception_table; | |
| 87 LinearScan* _allocator; | |
| 88 CodeOffsets _offsets; | |
| 89 CodeBuffer _code; | |
| 8860 | 90 bool _has_access_indexed; |
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91 int _interpreter_frame_size; // Stack space needed in case of a deoptimization |
| 0 | 92 |
| 93 // compilation helpers | |
| 94 void initialize(); | |
| 95 void build_hir(); | |
| 96 void emit_lir(); | |
| 97 | |
| 98 void emit_code_epilog(LIR_Assembler* assembler); | |
| 99 int emit_code_body(); | |
| 100 | |
| 101 int compile_java_method(); | |
| 102 void install_code(int frame_size); | |
| 103 void compile_method(); | |
| 104 | |
| 105 void generate_exception_handler_table(); | |
| 106 | |
| 107 ExceptionInfoList* exception_info_list() const { return _exception_info_list; } | |
| 108 ExceptionHandlerTable* exception_handler_table() { return &_exception_handler_table; } | |
| 109 | |
| 110 LinearScan* allocator() { return _allocator; } | |
| 111 void set_allocator(LinearScan* allocator) { _allocator = allocator; } | |
| 112 | |
| 113 Instruction* _current_instruction; // the instruction currently being processed | |
| 114 #ifndef PRODUCT | |
| 115 Instruction* _last_instruction_printed; // the last instruction printed during traversal | |
| 116 #endif // PRODUCT | |
| 117 | |
| 118 public: | |
| 119 // creation | |
| 1584 | 120 Compilation(AbstractCompiler* compiler, ciEnv* env, ciMethod* method, |
| 121 int osr_bci, BufferBlob* buffer_blob); | |
| 0 | 122 ~Compilation(); |
| 123 | |
| 1584 | 124 |
| 125 static Compilation* current() { | |
| 126 return (Compilation*) ciEnv::current()->compiler_data(); | |
| 127 } | |
| 0 | 128 |
| 129 // accessors | |
| 130 ciEnv* env() const { return _env; } | |
| 6843 | 131 CompileLog* log() const { return _log; } |
| 0 | 132 AbstractCompiler* compiler() const { return _compiler; } |
| 133 bool has_exception_handlers() const { return _has_exception_handlers; } | |
| 134 bool has_fpu_code() const { return _has_fpu_code; } | |
| 135 bool has_unsafe_access() const { return _has_unsafe_access; } | |
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136 int max_vector_size() const { return 0; } |
| 0 | 137 ciMethod* method() const { return _method; } |
| 138 int osr_bci() const { return _osr_bci; } | |
| 139 bool is_osr_compile() const { return osr_bci() >= 0; } | |
| 140 IR* hir() const { return _hir; } | |
| 141 int max_spills() const { return _max_spills; } | |
| 142 FrameMap* frame_map() const { return _frame_map; } | |
| 143 CodeBuffer* code() { return &_code; } | |
| 144 C1_MacroAssembler* masm() const { return _masm; } | |
| 145 CodeOffsets* offsets() { return &_offsets; } | |
| 1584 | 146 Arena* arena() { return _arena; } |
| 8860 | 147 bool has_access_indexed() { return _has_access_indexed; } |
| 1584 | 148 |
| 149 // Instruction ids | |
| 150 int get_next_id() { return _next_id++; } | |
| 151 int number_of_instructions() const { return _next_id; } | |
| 152 | |
| 153 // BlockBegin ids | |
| 154 int get_next_block_id() { return _next_block_id++; } | |
| 155 int number_of_blocks() const { return _next_block_id; } | |
| 0 | 156 |
| 157 // setters | |
| 158 void set_has_exception_handlers(bool f) { _has_exception_handlers = f; } | |
| 159 void set_has_fpu_code(bool f) { _has_fpu_code = f; } | |
| 160 void set_has_unsafe_access(bool f) { _has_unsafe_access = f; } | |
| 1783 | 161 void set_would_profile(bool f) { _would_profile = f; } |
| 8860 | 162 void set_has_access_indexed(bool f) { _has_access_indexed = f; } |
| 0 | 163 // Add a set of exception handlers covering the given PC offset |
| 164 void add_exception_handlers_for_pco(int pco, XHandlers* exception_handlers); | |
| 165 // Statistics gathering | |
| 166 void notice_inlined_method(ciMethod* method); | |
| 167 | |
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168 // JSR 292 |
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169 bool has_method_handle_invokes() const { return _has_method_handle_invokes; } |
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170 void set_has_method_handle_invokes(bool z) { _has_method_handle_invokes = z; } |
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171 |
| 0 | 172 DebugInformationRecorder* debug_info_recorder() const; // = _env->debug_info(); |
| 173 Dependencies* dependency_recorder() const; // = _env->dependencies() | |
| 174 ImplicitExceptionTable* implicit_exception_table() { return &_implicit_exception_table; } | |
| 175 | |
| 176 Instruction* current_instruction() const { return _current_instruction; } | |
| 177 Instruction* set_current_instruction(Instruction* instr) { | |
| 178 Instruction* previous = _current_instruction; | |
| 179 _current_instruction = instr; | |
| 180 return previous; | |
| 181 } | |
| 182 | |
| 183 #ifndef PRODUCT | |
| 184 void maybe_print_current_instruction(); | |
| 185 #endif // PRODUCT | |
| 186 | |
| 187 // error handling | |
| 188 void bailout(const char* msg); | |
| 189 bool bailed_out() const { return _bailout_msg != NULL; } | |
| 190 const char* bailout_msg() const { return _bailout_msg; } | |
| 191 | |
| 1584 | 192 static int desired_max_code_buffer_size() { |
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193 #ifndef PPC |
| 1584 | 194 return (int) NMethodSizeLimit; // default 256K or 512K |
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195 #else |
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196 // conditional branches on PPC are restricted to 16 bit signed |
| 1899 | 197 return MIN2((unsigned int)NMethodSizeLimit,32*K); |
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198 #endif |
| 1584 | 199 } |
| 200 static int desired_max_constant_size() { | |
| 1899 | 201 return desired_max_code_buffer_size() / 10; |
| 1584 | 202 } |
| 203 | |
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204 static bool setup_code_buffer(CodeBuffer* cb, int call_stub_estimate); |
| 1584 | 205 |
| 0 | 206 // timers |
| 207 static void print_timers(); | |
| 208 | |
| 209 #ifndef PRODUCT | |
| 210 // debugging support. | |
| 211 // produces a file named c1compileonly in the current directory with | |
| 212 // directives to compile only the current method and it's inlines. | |
| 213 // The file can be passed to the command line option -XX:Flags=<filename> | |
| 214 void compile_only_this_method(); | |
| 215 void compile_only_this_scope(outputStream* st, IRScope* scope); | |
| 216 void exclude_this_method(); | |
| 217 #endif // PRODUCT | |
| 1783 | 218 |
| 219 bool is_profiling() { | |
| 220 return env()->comp_level() == CompLevel_full_profile || | |
| 221 env()->comp_level() == CompLevel_limited_profile; | |
| 222 } | |
| 223 bool count_invocations() { return is_profiling(); } | |
| 224 bool count_backedges() { return is_profiling(); } | |
| 225 | |
| 226 // Helpers for generation of profile information | |
| 227 bool profile_branches() { | |
| 228 return env()->comp_level() == CompLevel_full_profile && | |
| 229 C1UpdateMethodData && C1ProfileBranches; | |
| 230 } | |
| 231 bool profile_calls() { | |
| 232 return env()->comp_level() == CompLevel_full_profile && | |
| 233 C1UpdateMethodData && C1ProfileCalls; | |
| 234 } | |
| 235 bool profile_inlined_calls() { | |
| 236 return profile_calls() && C1ProfileInlinedCalls; | |
| 237 } | |
| 238 bool profile_checkcasts() { | |
| 239 return env()->comp_level() == CompLevel_full_profile && | |
| 240 C1UpdateMethodData && C1ProfileCheckcasts; | |
| 241 } | |
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242 bool profile_parameters() { |
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243 return env()->comp_level() == CompLevel_full_profile && |
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244 C1UpdateMethodData && MethodData::profile_parameters(); |
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245 } |
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246 bool profile_arguments() { |
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247 return env()->comp_level() == CompLevel_full_profile && |
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248 C1UpdateMethodData && MethodData::profile_arguments(); |
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249 } |
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250 bool profile_return() { |
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251 return env()->comp_level() == CompLevel_full_profile && |
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252 C1UpdateMethodData && MethodData::profile_return(); |
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253 } |
| 8860 | 254 // will compilation make optimistic assumptions that might lead to |
| 255 // deoptimization and that the runtime will account for? | |
| 256 bool is_optimistic() const { | |
| 257 return !TieredCompilation && | |
| 258 (RangeCheckElimination || UseLoopInvariantCodeMotion) && | |
| 259 method()->method_data()->trap_count(Deoptimization::Reason_none) == 0; | |
| 260 } | |
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261 |
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262 ciKlass* cha_exact_type(ciType* type); |
| 17622 | 263 |
| 264 // Dump inlining replay data to the stream. | |
| 265 void dump_inline_data(outputStream* out) { /* do nothing now */ } | |
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266 |
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267 // How much stack space would the interpreter need in case of a |
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268 // deoptimization (worst case) |
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269 void update_interpreter_frame_size(int size) { |
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270 if (_interpreter_frame_size < size) { |
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271 _interpreter_frame_size = size; |
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272 } |
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273 } |
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274 |
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275 int interpreter_frame_size() const { |
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276 return _interpreter_frame_size; |
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277 } |
| 0 | 278 }; |
| 279 | |
| 280 | |
| 281 // Macro definitions for unified bailout-support | |
| 282 // The methods bailout() and bailed_out() are present in all classes | |
| 283 // that might bailout, but forward all calls to Compilation | |
| 284 #define BAILOUT(msg) { bailout(msg); return; } | |
| 285 #define BAILOUT_(msg, res) { bailout(msg); return res; } | |
| 286 | |
| 287 #define CHECK_BAILOUT() { if (bailed_out()) return; } | |
| 288 #define CHECK_BAILOUT_(res) { if (bailed_out()) return res; } | |
| 289 | |
| 290 | |
| 291 class InstructionMark: public StackObj { | |
| 292 private: | |
| 293 Compilation* _compilation; | |
| 294 Instruction* _previous; | |
| 295 | |
| 296 public: | |
| 297 InstructionMark(Compilation* compilation, Instruction* instr) { | |
| 298 _compilation = compilation; | |
| 299 _previous = _compilation->set_current_instruction(instr); | |
| 300 } | |
| 301 ~InstructionMark() { | |
| 302 _compilation->set_current_instruction(_previous); | |
| 303 } | |
| 304 }; | |
| 305 | |
| 306 | |
| 307 //---------------------------------------------------------------------- | |
| 308 // Base class for objects allocated by the compiler in the compilation arena | |
| 309 class CompilationResourceObj ALLOCATION_SUPER_CLASS_SPEC { | |
| 310 public: | |
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311 void* operator new(size_t size) throw() { return Compilation::current()->arena()->Amalloc(size); } |
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312 void* operator new(size_t size, Arena* arena) throw() { |
| 1584 | 313 return arena->Amalloc(size); |
| 314 } | |
| 0 | 315 void operator delete(void* p) {} // nothing to do |
| 316 }; | |
| 317 | |
| 318 | |
| 319 //---------------------------------------------------------------------- | |
| 320 // Class for aggregating exception handler information. | |
| 321 | |
| 322 // Effectively extends XHandlers class with PC offset of | |
| 323 // potentially exception-throwing instruction. | |
| 324 // This class is used at the end of the compilation to build the | |
| 325 // ExceptionHandlerTable. | |
| 326 class ExceptionInfo: public CompilationResourceObj { | |
| 327 private: | |
| 328 int _pco; // PC of potentially exception-throwing instruction | |
| 329 XHandlers* _exception_handlers; // flat list of exception handlers covering this PC | |
| 330 | |
| 331 public: | |
| 332 ExceptionInfo(int pco, XHandlers* exception_handlers) | |
| 333 : _pco(pco) | |
| 334 , _exception_handlers(exception_handlers) | |
| 335 { } | |
| 336 | |
| 337 int pco() { return _pco; } | |
| 338 XHandlers* exception_handlers() { return _exception_handlers; } | |
| 339 }; | |
| 1972 | 340 |
| 341 #endif // SHARE_VM_C1_C1_COMPILATION_HPP |