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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 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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170 HType::Smi())); | 170 HType::Smi())); |
171 | 171 |
172 Heap* heap = isolate()->heap(); | 172 Heap* heap = isolate()->heap(); |
173 const int kMinFreeNewSpaceAfterGC = | 173 const int kMinFreeNewSpaceAfterGC = |
174 ((heap->InitialSemiSpaceSize() - sizeof(FixedArrayBase)) / 2) / | 174 ((heap->InitialSemiSpaceSize() - sizeof(FixedArrayBase)) / 2) / |
175 kDoubleSize; | 175 kDoubleSize; |
176 | 176 |
177 HConstant* max_alloc_size = | 177 HConstant* max_alloc_size = |
178 new(zone) HConstant(kMinFreeNewSpaceAfterGC, Representation::Integer32()); | 178 new(zone) HConstant(kMinFreeNewSpaceAfterGC, Representation::Integer32()); |
179 AddInstruction(max_alloc_size); | 179 AddInstruction(max_alloc_size); |
180 AddInstruction(new(zone) HBoundsCheck(array_length, max_alloc_size)); | 180 AddInstruction( |
Jakob Kummerow
2013/02/07 16:17:14
Please add a comment here:
// Since we're forcing
Massi
2013/02/11 10:35:55
Done.
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181 new(zone) HBoundsCheck(array_length, max_alloc_size, | |
182 DONT_ALLOW_SMI_KEY, Representation::Integer32())); | |
181 | 183 |
182 current_block()->UpdateEnvironment(new(zone) HEnvironment(zone)); | 184 current_block()->UpdateEnvironment(new(zone) HEnvironment(zone)); |
183 | 185 |
184 IfBuilder if_builder(this); | 186 IfBuilder if_builder(this); |
185 | 187 |
186 if_builder.BeginTrue(array_length, graph()->GetConstant0(), Token::EQ); | 188 if_builder.BeginTrue(array_length, graph()->GetConstant0(), Token::EQ); |
187 | 189 |
188 // Nothing to do, just change the map. | 190 // Nothing to do, just change the map. |
189 | 191 |
190 if_builder.BeginFalse(); | 192 if_builder.BeginFalse(); |
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244 | 246 |
245 | 247 |
246 Handle<Code> TransitionElementsKindStub::GenerateCode() { | 248 Handle<Code> TransitionElementsKindStub::GenerateCode() { |
247 CodeStubGraphBuilder<TransitionElementsKindStub> builder(this); | 249 CodeStubGraphBuilder<TransitionElementsKindStub> builder(this); |
248 LChunk* chunk = OptimizeGraph(builder.CreateGraph()); | 250 LChunk* chunk = OptimizeGraph(builder.CreateGraph()); |
249 return chunk->Codegen(Code::COMPILED_STUB); | 251 return chunk->Codegen(Code::COMPILED_STUB); |
250 } | 252 } |
251 | 253 |
252 | 254 |
253 } } // namespace v8::internal | 255 } } // namespace v8::internal |
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