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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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1396 ASSERT(instr->right()->representation().IsTagged()); | 1396 ASSERT(instr->right()->representation().IsTagged()); |
1397 LOperand* left = UseFixed(instr->left(), r1); | 1397 LOperand* left = UseFixed(instr->left(), r1); |
1398 LOperand* right = UseFixed(instr->right(), r0); | 1398 LOperand* right = UseFixed(instr->right(), r0); |
1399 LCmpT* result = new(zone()) LCmpT(left, right); | 1399 LCmpT* result = new(zone()) LCmpT(left, right); |
1400 return MarkAsCall(DefineFixed(result, r0), instr); | 1400 return MarkAsCall(DefineFixed(result, r0), instr); |
1401 } | 1401 } |
1402 | 1402 |
1403 | 1403 |
1404 LInstruction* LChunkBuilder::DoCompareIDAndBranch( | 1404 LInstruction* LChunkBuilder::DoCompareIDAndBranch( |
1405 HCompareIDAndBranch* instr) { | 1405 HCompareIDAndBranch* instr) { |
1406 Representation r = instr->GetInputRepresentation(); | 1406 Representation r = instr->representation(); |
1407 if (r.IsInteger32()) { | 1407 if (r.IsInteger32()) { |
1408 ASSERT(instr->left()->representation().IsInteger32()); | 1408 ASSERT(instr->left()->representation().IsInteger32()); |
1409 ASSERT(instr->right()->representation().IsInteger32()); | 1409 ASSERT(instr->right()->representation().IsInteger32()); |
1410 LOperand* left = UseRegisterOrConstantAtStart(instr->left()); | 1410 LOperand* left = UseRegisterOrConstantAtStart(instr->left()); |
1411 LOperand* right = UseRegisterOrConstantAtStart(instr->right()); | 1411 LOperand* right = UseRegisterOrConstantAtStart(instr->right()); |
1412 return new(zone()) LCmpIDAndBranch(left, right); | 1412 return new(zone()) LCmpIDAndBranch(left, right); |
1413 } else { | 1413 } else { |
1414 ASSERT(r.IsDouble()); | 1414 ASSERT(r.IsDouble()); |
1415 ASSERT(instr->left()->representation().IsDouble()); | 1415 ASSERT(instr->left()->representation().IsDouble()); |
1416 ASSERT(instr->right()->representation().IsDouble()); | 1416 ASSERT(instr->right()->representation().IsDouble()); |
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2155 } | 2155 } |
2156 | 2156 |
2157 | 2157 |
2158 LInstruction* LChunkBuilder::DoSimulate(HSimulate* instr) { | 2158 LInstruction* LChunkBuilder::DoSimulate(HSimulate* instr) { |
2159 HEnvironment* env = current_block_->last_environment(); | 2159 HEnvironment* env = current_block_->last_environment(); |
2160 ASSERT(env != NULL); | 2160 ASSERT(env != NULL); |
2161 | 2161 |
2162 env->set_ast_id(instr->ast_id()); | 2162 env->set_ast_id(instr->ast_id()); |
2163 | 2163 |
2164 env->Drop(instr->pop_count()); | 2164 env->Drop(instr->pop_count()); |
2165 for (int i = 0; i < instr->values()->length(); ++i) { | 2165 for (int i = instr->values()->length() - 1; i >= 0; --i) { |
danno
2012/11/06 11:42:59
Add a comment describing why the order is reversed
Jakob Kummerow
2012/11/06 12:44:05
The comment is in hydrogen.cc, in HBasicBlock::Cre
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2166 HValue* value = instr->values()->at(i); | 2166 HValue* value = instr->values()->at(i); |
2167 if (instr->HasAssignedIndexAt(i)) { | 2167 if (instr->HasAssignedIndexAt(i)) { |
2168 env->Bind(instr->GetAssignedIndexAt(i), value); | 2168 env->Bind(instr->GetAssignedIndexAt(i), value); |
2169 } else { | 2169 } else { |
2170 env->Push(value); | 2170 env->Push(value); |
2171 } | 2171 } |
2172 } | 2172 } |
2173 | 2173 |
2174 // If there is an instruction pending deoptimization environment create a | 2174 // If there is an instruction pending deoptimization environment create a |
2175 // lazy bailout instruction to capture the environment. | 2175 // lazy bailout instruction to capture the environment. |
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2266 | 2266 |
2267 | 2267 |
2268 LInstruction* LChunkBuilder::DoLoadFieldByIndex(HLoadFieldByIndex* instr) { | 2268 LInstruction* LChunkBuilder::DoLoadFieldByIndex(HLoadFieldByIndex* instr) { |
2269 LOperand* object = UseRegister(instr->object()); | 2269 LOperand* object = UseRegister(instr->object()); |
2270 LOperand* index = UseRegister(instr->index()); | 2270 LOperand* index = UseRegister(instr->index()); |
2271 return DefineAsRegister(new(zone()) LLoadFieldByIndex(object, index)); | 2271 return DefineAsRegister(new(zone()) LLoadFieldByIndex(object, index)); |
2272 } | 2272 } |
2273 | 2273 |
2274 | 2274 |
2275 } } // namespace v8::internal | 2275 } } // namespace v8::internal |
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