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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 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_CRANKSHAFT_S390_LITHIUM_CODEGEN_S390_H_ | 5 #ifndef V8_CRANKSHAFT_S390_LITHIUM_CODEGEN_S390_H_ |
6 #define V8_CRANKSHAFT_S390_LITHIUM_CODEGEN_S390_H_ | 6 #define V8_CRANKSHAFT_S390_LITHIUM_CODEGEN_S390_H_ |
7 | 7 |
8 #include "src/ast/scopes.h" | 8 #include "src/ast/scopes.h" |
9 #include "src/crankshaft/lithium-codegen.h" | 9 #include "src/crankshaft/lithium-codegen.h" |
10 #include "src/crankshaft/s390/lithium-gap-resolver-s390.h" | 10 #include "src/crankshaft/s390/lithium-gap-resolver-s390.h" |
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286 // itself is emitted at the end of the generated code. | 286 // itself is emitted at the end of the generated code. |
287 SafepointTableBuilder safepoints_; | 287 SafepointTableBuilder safepoints_; |
288 | 288 |
289 // Compiler from a set of parallel moves to a sequential list of moves. | 289 // Compiler from a set of parallel moves to a sequential list of moves. |
290 LGapResolver resolver_; | 290 LGapResolver resolver_; |
291 | 291 |
292 Safepoint::Kind expected_safepoint_kind_; | 292 Safepoint::Kind expected_safepoint_kind_; |
293 | 293 |
294 class PushSafepointRegistersScope final BASE_EMBEDDED { | 294 class PushSafepointRegistersScope final BASE_EMBEDDED { |
295 public: | 295 public: |
296 explicit PushSafepointRegistersScope(LCodeGen* codegen) | 296 explicit PushSafepointRegistersScope(LCodeGen* codegen); |
297 : codegen_(codegen) { | |
298 DCHECK(codegen_->info()->is_calling()); | |
299 DCHECK(codegen_->expected_safepoint_kind_ == Safepoint::kSimple); | |
300 codegen_->expected_safepoint_kind_ = Safepoint::kWithRegisters; | |
301 StoreRegistersStateStub stub(codegen_->isolate()); | |
302 codegen_->masm_->CallStub(&stub); | |
303 } | |
304 | 297 |
305 ~PushSafepointRegistersScope() { | 298 ~PushSafepointRegistersScope(); |
306 DCHECK(codegen_->expected_safepoint_kind_ == Safepoint::kWithRegisters); | |
307 RestoreRegistersStateStub stub(codegen_->isolate()); | |
308 codegen_->masm_->CallStub(&stub); | |
309 codegen_->expected_safepoint_kind_ = Safepoint::kSimple; | |
310 } | |
311 | 299 |
312 private: | 300 private: |
313 LCodeGen* codegen_; | 301 LCodeGen* codegen_; |
314 }; | 302 }; |
315 | 303 |
316 friend class LDeferredCode; | 304 friend class LDeferredCode; |
317 friend class LEnvironment; | 305 friend class LEnvironment; |
318 friend class SafepointGenerator; | 306 friend class SafepointGenerator; |
319 DISALLOW_COPY_AND_ASSIGN(LCodeGen); | 307 DISALLOW_COPY_AND_ASSIGN(LCodeGen); |
320 }; | 308 }; |
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345 LCodeGen* codegen_; | 333 LCodeGen* codegen_; |
346 Label entry_; | 334 Label entry_; |
347 Label exit_; | 335 Label exit_; |
348 Label* external_exit_; | 336 Label* external_exit_; |
349 int instruction_index_; | 337 int instruction_index_; |
350 }; | 338 }; |
351 } // namespace internal | 339 } // namespace internal |
352 } // namespace v8 | 340 } // namespace v8 |
353 | 341 |
354 #endif // V8_CRANKSHAFT_S390_LITHIUM_CODEGEN_S390_H_ | 342 #endif // V8_CRANKSHAFT_S390_LITHIUM_CODEGEN_S390_H_ |
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