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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_X64_LITHIUM_CODEGEN_X64_H_ | 5 #ifndef V8_X64_LITHIUM_CODEGEN_X64_H_ |
6 #define V8_X64_LITHIUM_CODEGEN_X64_H_ | 6 #define V8_X64_LITHIUM_CODEGEN_X64_H_ |
7 | 7 |
8 #include "src/x64/lithium-x64.h" | 8 #include "src/x64/lithium-x64.h" |
9 | 9 |
10 #include "src/base/logging.h" | 10 #include "src/base/logging.h" |
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136 int GetStackSlotCount() const { return chunk()->spill_slot_count(); } | 136 int GetStackSlotCount() const { return chunk()->spill_slot_count(); } |
137 | 137 |
138 void AddDeferredCode(LDeferredCode* code) { deferred_.Add(code, zone()); } | 138 void AddDeferredCode(LDeferredCode* code) { deferred_.Add(code, zone()); } |
139 | 139 |
140 | 140 |
141 void SaveCallerDoubles(); | 141 void SaveCallerDoubles(); |
142 void RestoreCallerDoubles(); | 142 void RestoreCallerDoubles(); |
143 | 143 |
144 // Code generation passes. Returns true if code generation should | 144 // Code generation passes. Returns true if code generation should |
145 // continue. | 145 // continue. |
146 void GenerateBodyInstructionPre(LInstruction* instr) V8_OVERRIDE; | 146 void GenerateBodyInstructionPre(LInstruction* instr) OVERRIDE; |
147 void GenerateBodyInstructionPost(LInstruction* instr) V8_OVERRIDE; | 147 void GenerateBodyInstructionPost(LInstruction* instr) OVERRIDE; |
148 bool GeneratePrologue(); | 148 bool GeneratePrologue(); |
149 bool GenerateDeferredCode(); | 149 bool GenerateDeferredCode(); |
150 bool GenerateJumpTable(); | 150 bool GenerateJumpTable(); |
151 bool GenerateSafepointTable(); | 151 bool GenerateSafepointTable(); |
152 | 152 |
153 // Generates the custom OSR entrypoint and sets the osr_pc_offset. | 153 // Generates the custom OSR entrypoint and sets the osr_pc_offset. |
154 void GenerateOsrPrologue(); | 154 void GenerateOsrPrologue(); |
155 | 155 |
156 enum SafepointMode { | 156 enum SafepointMode { |
157 RECORD_SIMPLE_SAFEPOINT, | 157 RECORD_SIMPLE_SAFEPOINT, |
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246 // Support for recording safepoint and position information. | 246 // Support for recording safepoint and position information. |
247 void RecordSafepoint(LPointerMap* pointers, | 247 void RecordSafepoint(LPointerMap* pointers, |
248 Safepoint::Kind kind, | 248 Safepoint::Kind kind, |
249 int arguments, | 249 int arguments, |
250 Safepoint::DeoptMode mode); | 250 Safepoint::DeoptMode mode); |
251 void RecordSafepoint(LPointerMap* pointers, Safepoint::DeoptMode mode); | 251 void RecordSafepoint(LPointerMap* pointers, Safepoint::DeoptMode mode); |
252 void RecordSafepoint(Safepoint::DeoptMode mode); | 252 void RecordSafepoint(Safepoint::DeoptMode mode); |
253 void RecordSafepointWithRegisters(LPointerMap* pointers, | 253 void RecordSafepointWithRegisters(LPointerMap* pointers, |
254 int arguments, | 254 int arguments, |
255 Safepoint::DeoptMode mode); | 255 Safepoint::DeoptMode mode); |
256 void RecordAndWritePosition(int position) V8_OVERRIDE; | 256 void RecordAndWritePosition(int position) OVERRIDE; |
257 | 257 |
258 static Condition TokenToCondition(Token::Value op, bool is_unsigned); | 258 static Condition TokenToCondition(Token::Value op, bool is_unsigned); |
259 void EmitGoto(int block); | 259 void EmitGoto(int block); |
260 | 260 |
261 // EmitBranch expects to be the last instruction of a block. | 261 // EmitBranch expects to be the last instruction of a block. |
262 template<class InstrType> | 262 template<class InstrType> |
263 void EmitBranch(InstrType instr, Condition cc); | 263 void EmitBranch(InstrType instr, Condition cc); |
264 template<class InstrType> | 264 template<class InstrType> |
265 void EmitFalseBranch(InstrType instr, Condition cc); | 265 void EmitFalseBranch(InstrType instr, Condition cc); |
266 void EmitNumberUntagD( | 266 void EmitNumberUntagD( |
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300 void EmitPushTaggedOperand(LOperand* operand); | 300 void EmitPushTaggedOperand(LOperand* operand); |
301 | 301 |
302 // Emits optimized code to deep-copy the contents of statically known | 302 // Emits optimized code to deep-copy the contents of statically known |
303 // object graphs (e.g. object literal boilerplate). | 303 // object graphs (e.g. object literal boilerplate). |
304 void EmitDeepCopy(Handle<JSObject> object, | 304 void EmitDeepCopy(Handle<JSObject> object, |
305 Register result, | 305 Register result, |
306 Register source, | 306 Register source, |
307 int* offset, | 307 int* offset, |
308 AllocationSiteMode mode); | 308 AllocationSiteMode mode); |
309 | 309 |
310 void EnsureSpaceForLazyDeopt(int space_needed) V8_OVERRIDE; | 310 void EnsureSpaceForLazyDeopt(int space_needed) OVERRIDE; |
311 void DoLoadKeyedExternalArray(LLoadKeyed* instr); | 311 void DoLoadKeyedExternalArray(LLoadKeyed* instr); |
312 void DoLoadKeyedFixedDoubleArray(LLoadKeyed* instr); | 312 void DoLoadKeyedFixedDoubleArray(LLoadKeyed* instr); |
313 void DoLoadKeyedFixedArray(LLoadKeyed* instr); | 313 void DoLoadKeyedFixedArray(LLoadKeyed* instr); |
314 void DoStoreKeyedExternalArray(LStoreKeyed* instr); | 314 void DoStoreKeyedExternalArray(LStoreKeyed* instr); |
315 void DoStoreKeyedFixedDoubleArray(LStoreKeyed* instr); | 315 void DoStoreKeyedFixedDoubleArray(LStoreKeyed* instr); |
316 void DoStoreKeyedFixedArray(LStoreKeyed* instr); | 316 void DoStoreKeyedFixedArray(LStoreKeyed* instr); |
317 | 317 |
318 template <class T> | 318 template <class T> |
319 void EmitVectorLoadICRegisters(T* instr); | 319 void EmitVectorLoadICRegisters(T* instr); |
320 | 320 |
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338 | 338 |
339 // Builder that keeps track of safepoints in the code. The table | 339 // Builder that keeps track of safepoints in the code. The table |
340 // itself is emitted at the end of the generated code. | 340 // itself is emitted at the end of the generated code. |
341 SafepointTableBuilder safepoints_; | 341 SafepointTableBuilder safepoints_; |
342 | 342 |
343 // Compiler from a set of parallel moves to a sequential list of moves. | 343 // Compiler from a set of parallel moves to a sequential list of moves. |
344 LGapResolver resolver_; | 344 LGapResolver resolver_; |
345 | 345 |
346 Safepoint::Kind expected_safepoint_kind_; | 346 Safepoint::Kind expected_safepoint_kind_; |
347 | 347 |
348 class PushSafepointRegistersScope V8_FINAL BASE_EMBEDDED { | 348 class PushSafepointRegistersScope FINAL BASE_EMBEDDED { |
349 public: | 349 public: |
350 explicit PushSafepointRegistersScope(LCodeGen* codegen) | 350 explicit PushSafepointRegistersScope(LCodeGen* codegen) |
351 : codegen_(codegen) { | 351 : codegen_(codegen) { |
352 DCHECK(codegen_->info()->is_calling()); | 352 DCHECK(codegen_->info()->is_calling()); |
353 DCHECK(codegen_->expected_safepoint_kind_ == Safepoint::kSimple); | 353 DCHECK(codegen_->expected_safepoint_kind_ == Safepoint::kSimple); |
354 codegen_->masm_->PushSafepointRegisters(); | 354 codegen_->masm_->PushSafepointRegisters(); |
355 codegen_->expected_safepoint_kind_ = Safepoint::kWithRegisters; | 355 codegen_->expected_safepoint_kind_ = Safepoint::kWithRegisters; |
356 } | 356 } |
357 | 357 |
358 ~PushSafepointRegistersScope() { | 358 ~PushSafepointRegistersScope() { |
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400 Label entry_; | 400 Label entry_; |
401 Label exit_; | 401 Label exit_; |
402 Label done_; | 402 Label done_; |
403 Label* external_exit_; | 403 Label* external_exit_; |
404 int instruction_index_; | 404 int instruction_index_; |
405 }; | 405 }; |
406 | 406 |
407 } } // namespace v8::internal | 407 } } // namespace v8::internal |
408 | 408 |
409 #endif // V8_X64_LITHIUM_CODEGEN_X64_H_ | 409 #endif // V8_X64_LITHIUM_CODEGEN_X64_H_ |
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