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Side by Side Diff: src/compiler/js-generic-lowering.cc

Issue 2435023002: Use a different map to distinguish eval contexts (Closed)
Patch Set: relax dchecks Created 4 years, 1 month ago
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1 // Copyright 2014 the V8 project authors. All rights reserved. 1 // Copyright 2014 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/js-generic-lowering.h" 5 #include "src/compiler/js-generic-lowering.h"
6 6
7 #include "src/ast/ast.h" 7 #include "src/ast/ast.h"
8 #include "src/code-factory.h" 8 #include "src/code-factory.h"
9 #include "src/code-stubs.h" 9 #include "src/code-stubs.h"
10 #include "src/compiler/common-operator.h" 10 #include "src/compiler/common-operator.h"
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451 451
452 if (slot_count <= FastNewFunctionContextStub::kMaximumSlots) { 452 if (slot_count <= FastNewFunctionContextStub::kMaximumSlots) {
453 Callable callable = CodeFactory::FastNewFunctionContext(isolate()); 453 Callable callable = CodeFactory::FastNewFunctionContext(isolate());
454 node->InsertInput(zone(), 1, jsgraph()->Int32Constant(slot_count)); 454 node->InsertInput(zone(), 1, jsgraph()->Int32Constant(slot_count));
455 ReplaceWithStubCall(node, callable, flags); 455 ReplaceWithStubCall(node, callable, flags);
456 } else { 456 } else {
457 ReplaceWithRuntimeCall(node, Runtime::kNewFunctionContext); 457 ReplaceWithRuntimeCall(node, Runtime::kNewFunctionContext);
458 } 458 }
459 } 459 }
460 460
461 void JSGenericLowering::LowerJSCreateEvalContext(Node* node) {
462 int const slot_count = OpParameter<int>(node->op());
463 CallDescriptor::Flags flags = FrameStateFlagForCall(node);
464
465 if (slot_count <= FastNewFunctionContextStub::kMaximumSlots) {
466 Callable callable = CodeFactory::FastNewEvalContext(isolate());
467 node->InsertInput(zone(), 1, jsgraph()->Int32Constant(slot_count));
468 ReplaceWithStubCall(node, callable, flags);
469 } else {
470 ReplaceWithRuntimeCall(node, Runtime::kNewEvalContext);
471 }
472 }
461 473
462 void JSGenericLowering::LowerJSCreateIterResultObject(Node* node) { 474 void JSGenericLowering::LowerJSCreateIterResultObject(Node* node) {
463 ReplaceWithRuntimeCall(node, Runtime::kCreateIterResultObject); 475 ReplaceWithRuntimeCall(node, Runtime::kCreateIterResultObject);
464 } 476 }
465 477
466 478
467 void JSGenericLowering::LowerJSCreateLiteralArray(Node* node) { 479 void JSGenericLowering::LowerJSCreateLiteralArray(Node* node) {
468 CreateLiteralParameters const& p = CreateLiteralParametersOf(node->op()); 480 CreateLiteralParameters const& p = CreateLiteralParametersOf(node->op());
469 CallDescriptor::Flags flags = FrameStateFlagForCall(node); 481 CallDescriptor::Flags flags = FrameStateFlagForCall(node);
470 node->InsertInput(zone(), 1, jsgraph()->SmiConstant(p.index())); 482 node->InsertInput(zone(), 1, jsgraph()->SmiConstant(p.index()));
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702 } 714 }
703 715
704 716
705 MachineOperatorBuilder* JSGenericLowering::machine() const { 717 MachineOperatorBuilder* JSGenericLowering::machine() const {
706 return jsgraph()->machine(); 718 return jsgraph()->machine();
707 } 719 }
708 720
709 } // namespace compiler 721 } // namespace compiler
710 } // namespace internal 722 } // namespace internal
711 } // namespace v8 723 } // namespace v8
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