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| 1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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 #include "src/crankshaft/hydrogen.h" | 5 #include "src/crankshaft/hydrogen.h" |
| 6 | 6 |
| 7 #include <sstream> | 7 #include <sstream> |
| 8 | 8 |
| 9 #include "src/allocation-site-scopes.h" | 9 #include "src/allocation-site-scopes.h" |
| 10 #include "src/ast/ast-numbering.h" | 10 #include "src/ast/ast-numbering.h" |
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| 178 (info()->is_tracking_positions() || FLAG_trace_ic) | 178 (info()->is_tracking_positions() || FLAG_trace_ic) |
| 179 ? new (info()->zone()) HOptimizedGraphBuilderWithPositions(info()) | 179 ? new (info()->zone()) HOptimizedGraphBuilderWithPositions(info()) |
| 180 : new (info()->zone()) HOptimizedGraphBuilder(info()); | 180 : new (info()->zone()) HOptimizedGraphBuilder(info()); |
| 181 | 181 |
| 182 graph_ = graph_builder->CreateGraph(); | 182 graph_ = graph_builder->CreateGraph(); |
| 183 | 183 |
| 184 if (isolate()->has_pending_exception()) { | 184 if (isolate()->has_pending_exception()) { |
| 185 return FAILED; | 185 return FAILED; |
| 186 } | 186 } |
| 187 | 187 |
| 188 if (graph_ == NULL) return BAILED_OUT; | 188 if (graph_ == NULL) return FAILED; |
| 189 | 189 |
| 190 if (info()->dependencies()->HasAborted()) { | 190 if (info()->dependencies()->HasAborted()) { |
| 191 // Dependency has changed during graph creation. Let's try again later. | 191 // Dependency has changed during graph creation. Let's try again later. |
| 192 return RetryOptimization(kBailedOutDueToDependencyChange); | 192 return RetryOptimization(kBailedOutDueToDependencyChange); |
| 193 } | 193 } |
| 194 | 194 |
| 195 return SUCCEEDED; | 195 return SUCCEEDED; |
| 196 } | 196 } |
| 197 | 197 |
| 198 HCompilationJob::Status HCompilationJob::OptimizeGraphImpl() { | 198 HCompilationJob::Status HCompilationJob::OptimizeGraphImpl() { |
| 199 DCHECK(graph_ != NULL); | 199 DCHECK(graph_ != NULL); |
| 200 BailoutReason bailout_reason = kNoReason; | 200 BailoutReason bailout_reason = kNoReason; |
| 201 | 201 |
| 202 if (graph_->Optimize(&bailout_reason)) { | 202 if (graph_->Optimize(&bailout_reason)) { |
| 203 chunk_ = LChunk::NewChunk(graph_); | 203 chunk_ = LChunk::NewChunk(graph_); |
| 204 if (chunk_ != NULL) return SUCCEEDED; | 204 if (chunk_ != NULL) return SUCCEEDED; |
| 205 } else if (bailout_reason != kNoReason) { | 205 } else if (bailout_reason != kNoReason) { |
| 206 info()->AbortOptimization(bailout_reason); | 206 info()->AbortOptimization(bailout_reason); |
| 207 } | 207 } |
| 208 | 208 |
| 209 return BAILED_OUT; | 209 return FAILED; |
| 210 } | 210 } |
| 211 | 211 |
| 212 HCompilationJob::Status HCompilationJob::GenerateCodeImpl() { | 212 HCompilationJob::Status HCompilationJob::GenerateCodeImpl() { |
| 213 DCHECK(chunk_ != NULL); | 213 DCHECK(chunk_ != NULL); |
| 214 DCHECK(graph_ != NULL); | 214 DCHECK(graph_ != NULL); |
| 215 { | 215 { |
| 216 // Deferred handles reference objects that were accessible during | 216 // Deferred handles reference objects that were accessible during |
| 217 // graph creation. To make sure that we don't encounter inconsistencies | 217 // graph creation. To make sure that we don't encounter inconsistencies |
| 218 // between graph creation and code generation, we disallow accessing | 218 // between graph creation and code generation, we disallow accessing |
| 219 // objects through deferred handles during the latter, with exceptions. | 219 // objects through deferred handles during the latter, with exceptions. |
| 220 DisallowDeferredHandleDereference no_deferred_handle_deref; | 220 DisallowDeferredHandleDereference no_deferred_handle_deref; |
| 221 Handle<Code> optimized_code = chunk_->Codegen(); | 221 Handle<Code> optimized_code = chunk_->Codegen(); |
| 222 if (optimized_code.is_null()) { | 222 if (optimized_code.is_null()) { |
| 223 if (info()->bailout_reason() == kNoReason) { | 223 if (info()->bailout_reason() == kNoReason) { |
| 224 return AbortOptimization(kCodeGenerationFailed); | 224 return AbortOptimization(kCodeGenerationFailed); |
| 225 } | 225 } |
| 226 return BAILED_OUT; | 226 return FAILED; |
| 227 } | 227 } |
| 228 RegisterWeakObjectsInOptimizedCode(optimized_code); | 228 RegisterWeakObjectsInOptimizedCode(optimized_code); |
| 229 info()->SetCode(optimized_code); | 229 info()->SetCode(optimized_code); |
| 230 } | 230 } |
| 231 // Add to the weak list of optimized code objects. | 231 // Add to the weak list of optimized code objects. |
| 232 info()->context()->native_context()->AddOptimizedCode(*info()->code()); | 232 info()->context()->native_context()->AddOptimizedCode(*info()->code()); |
| 233 return SUCCEEDED; | 233 return SUCCEEDED; |
| 234 } | 234 } |
| 235 | 235 |
| 236 HBasicBlock::HBasicBlock(HGraph* graph) | 236 HBasicBlock::HBasicBlock(HGraph* graph) |
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| 13729 isolate()->GetHTracer()->TraceHydrogen(name(), graph_); | 13729 isolate()->GetHTracer()->TraceHydrogen(name(), graph_); |
| 13730 } | 13730 } |
| 13731 | 13731 |
| 13732 #ifdef DEBUG | 13732 #ifdef DEBUG |
| 13733 graph_->Verify(false); // No full verify. | 13733 graph_->Verify(false); // No full verify. |
| 13734 #endif | 13734 #endif |
| 13735 } | 13735 } |
| 13736 | 13736 |
| 13737 } // namespace internal | 13737 } // namespace internal |
| 13738 } // namespace v8 | 13738 } // namespace v8 |
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