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Issue 1634153002: [Interpreter] Adds support for const/let variables to interpreter. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Rebased the patch. Created 4 years, 10 months ago
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1 // Copyright 2015 the V8 project authors. All rights reserved. 1 // Copyright 2015 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/compiler/bytecode-graph-builder.h" 5 #include "src/compiler/bytecode-graph-builder.h"
6 6
7 #include "src/compiler/bytecode-branch-analysis.h" 7 #include "src/compiler/bytecode-branch-analysis.h"
8 #include "src/compiler/linkage.h" 8 #include "src/compiler/linkage.h"
9 #include "src/compiler/operator-properties.h" 9 #include "src/compiler/operator-properties.h"
10 #include "src/interpreter/bytecodes.h" 10 #include "src/interpreter/bytecodes.h"
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1503 } 1503 }
1504 1504
1505 void BytecodeGraphBuilder::VisitJumpIfUndefinedConstant() { 1505 void BytecodeGraphBuilder::VisitJumpIfUndefinedConstant() {
1506 BuildJumpIfEqual(jsgraph()->UndefinedConstant()); 1506 BuildJumpIfEqual(jsgraph()->UndefinedConstant());
1507 } 1507 }
1508 1508
1509 void BytecodeGraphBuilder::VisitJumpIfUndefinedConstantWide() { 1509 void BytecodeGraphBuilder::VisitJumpIfUndefinedConstantWide() {
1510 BuildJumpIfEqual(jsgraph()->UndefinedConstant()); 1510 BuildJumpIfEqual(jsgraph()->UndefinedConstant());
1511 } 1511 }
1512 1512
1513 void BytecodeGraphBuilder::VisitJumpIfHole() {
1514 BuildJumpIfEqual(jsgraph()->TheHoleConstant());
1515 }
1516
1517 void BytecodeGraphBuilder::VisitJumpIfNotHole() {
1518 Node* accumulator = environment()->LookupAccumulator();
1519 Node* condition = NewNode(javascript()->StrictEqual(), accumulator,
1520 jsgraph()->TheHoleConstant());
1521 Node* node =
1522 NewNode(common()->Select(MachineRepresentation::kTagged), condition,
1523 jsgraph()->FalseConstant(), jsgraph()->TrueConstant());
1524 BuildConditionalJump(node);
1525 }
1526
1513 void BytecodeGraphBuilder::VisitStackCheck() { 1527 void BytecodeGraphBuilder::VisitStackCheck() {
1514 FrameStateBeforeAndAfter states(this); 1528 FrameStateBeforeAndAfter states(this);
1515 Node* node = NewNode(javascript()->StackCheck()); 1529 Node* node = NewNode(javascript()->StackCheck());
1516 environment()->RecordAfterState(node, &states); 1530 environment()->RecordAfterState(node, &states);
1517 } 1531 }
1518 1532
1519 void BytecodeGraphBuilder::VisitReturn() { 1533 void BytecodeGraphBuilder::VisitReturn() {
1520 Node* control = 1534 Node* control =
1521 NewNode(common()->Return(), environment()->LookupAccumulator()); 1535 NewNode(common()->Return(), environment()->LookupAccumulator());
1522 MergeControlToLeaveFunction(control); 1536 MergeControlToLeaveFunction(control);
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1832 // Phi does not exist yet, introduce one. 1846 // Phi does not exist yet, introduce one.
1833 value = NewPhi(inputs, value, control); 1847 value = NewPhi(inputs, value, control);
1834 value->ReplaceInput(inputs - 1, other); 1848 value->ReplaceInput(inputs - 1, other);
1835 } 1849 }
1836 return value; 1850 return value;
1837 } 1851 }
1838 1852
1839 } // namespace compiler 1853 } // namespace compiler
1840 } // namespace internal 1854 } // namespace internal
1841 } // namespace v8 1855 } // namespace v8
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