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Issue 12832002: Parallel recompilation: fewer handle dereferences and tighter checks. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: addressed comments Created 7 years, 9 months ago
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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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928 928
929 929
930 LInstruction* LChunkBuilder::DoGoto(HGoto* instr) { 930 LInstruction* LChunkBuilder::DoGoto(HGoto* instr) {
931 return new(zone()) LGoto(instr->FirstSuccessor()->block_id()); 931 return new(zone()) LGoto(instr->FirstSuccessor()->block_id());
932 } 932 }
933 933
934 934
935 LInstruction* LChunkBuilder::DoBranch(HBranch* instr) { 935 LInstruction* LChunkBuilder::DoBranch(HBranch* instr) {
936 HValue* value = instr->value(); 936 HValue* value = instr->value();
937 if (value->EmitAtUses()) { 937 if (value->EmitAtUses()) {
938 HBasicBlock* successor = HConstant::cast(value)->ToBoolean() 938 HBasicBlock* successor = HConstant::cast(value)->BooleanValue()
939 ? instr->FirstSuccessor() 939 ? instr->FirstSuccessor()
940 : instr->SecondSuccessor(); 940 : instr->SecondSuccessor();
941 return new(zone()) LGoto(successor->block_id()); 941 return new(zone()) LGoto(successor->block_id());
942 } 942 }
943 943
944 LBranch* result = new(zone()) LBranch(UseRegister(value)); 944 LBranch* result = new(zone()) LBranch(UseRegister(value));
945 // Tagged values that are not known smis or booleans require a 945 // Tagged values that are not known smis or booleans require a
946 // deoptimization environment. 946 // deoptimization environment.
947 Representation rep = value->representation(); 947 Representation rep = value->representation();
948 HType type = value->type(); 948 HType type = value->type();
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2529 2529
2530 2530
2531 LInstruction* LChunkBuilder::DoLoadFieldByIndex(HLoadFieldByIndex* instr) { 2531 LInstruction* LChunkBuilder::DoLoadFieldByIndex(HLoadFieldByIndex* instr) {
2532 LOperand* object = UseRegister(instr->object()); 2532 LOperand* object = UseRegister(instr->object());
2533 LOperand* index = UseRegister(instr->index()); 2533 LOperand* index = UseRegister(instr->index());
2534 return DefineAsRegister(new(zone()) LLoadFieldByIndex(object, index)); 2534 return DefineAsRegister(new(zone()) LLoadFieldByIndex(object, index));
2535 } 2535 }
2536 2536
2537 2537
2538 } } // namespace v8::internal 2538 } } // namespace v8::internal
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