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Side by Side Diff: src/crankshaft/arm64/lithium-codegen-arm64.cc

Issue 2281073002: Create ScopeInfos while analyzing the Scope chain (Closed)
Patch Set: updates Created 4 years, 3 months ago
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1 // Copyright 2013 the V8 project authors. All rights reserved. 1 // Copyright 2013 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/crankshaft/arm64/lithium-codegen-arm64.h" 5 #include "src/crankshaft/arm64/lithium-codegen-arm64.h"
6 6
7 #include "src/arm64/frames-arm64.h" 7 #include "src/arm64/frames-arm64.h"
8 #include "src/base/bits.h" 8 #include "src/base/bits.h"
9 #include "src/code-factory.h" 9 #include "src/code-factory.h"
10 #include "src/code-stubs.h" 10 #include "src/code-stubs.h"
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583 Comment(";;; Prologue begin"); 583 Comment(";;; Prologue begin");
584 584
585 // Allocate a local context if needed. 585 // Allocate a local context if needed.
586 if (info()->scope()->NeedsContext()) { 586 if (info()->scope()->NeedsContext()) {
587 Comment(";;; Allocate local context"); 587 Comment(";;; Allocate local context");
588 bool need_write_barrier = true; 588 bool need_write_barrier = true;
589 // Argument to NewContext is the function, which is in x1. 589 // Argument to NewContext is the function, which is in x1.
590 int slots = info()->scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; 590 int slots = info()->scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS;
591 Safepoint::DeoptMode deopt_mode = Safepoint::kNoLazyDeopt; 591 Safepoint::DeoptMode deopt_mode = Safepoint::kNoLazyDeopt;
592 if (info()->scope()->is_script_scope()) { 592 if (info()->scope()->is_script_scope()) {
593 __ Mov(x10, Operand(info()->scope()->GetScopeInfo(info()->isolate()))); 593 __ Mov(x10, Operand(info()->scope()->scope_info()));
594 __ Push(x1, x10); 594 __ Push(x1, x10);
595 __ CallRuntime(Runtime::kNewScriptContext); 595 __ CallRuntime(Runtime::kNewScriptContext);
596 deopt_mode = Safepoint::kLazyDeopt; 596 deopt_mode = Safepoint::kLazyDeopt;
597 } else { 597 } else {
598 FastNewFunctionContextStub stub(isolate()); 598 FastNewFunctionContextStub stub(isolate());
599 __ Mov(FastNewFunctionContextDescriptor::SlotsRegister(), slots); 599 __ Mov(FastNewFunctionContextDescriptor::SlotsRegister(), slots);
600 __ CallStub(&stub); 600 __ CallStub(&stub);
601 // Result of FastNewFunctionContextStub is always in new space. 601 // Result of FastNewFunctionContextStub is always in new space.
602 need_write_barrier = false; 602 need_write_barrier = false;
603 } 603 }
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5694 // Index is equal to negated out of object property index plus 1. 5694 // Index is equal to negated out of object property index plus 1.
5695 __ Sub(result, result, Operand::UntagSmiAndScale(index, kPointerSizeLog2)); 5695 __ Sub(result, result, Operand::UntagSmiAndScale(index, kPointerSizeLog2));
5696 __ Ldr(result, FieldMemOperand(result, 5696 __ Ldr(result, FieldMemOperand(result,
5697 FixedArray::kHeaderSize - kPointerSize)); 5697 FixedArray::kHeaderSize - kPointerSize));
5698 __ Bind(deferred->exit()); 5698 __ Bind(deferred->exit());
5699 __ Bind(&done); 5699 __ Bind(&done);
5700 } 5700 }
5701 5701
5702 } // namespace internal 5702 } // namespace internal
5703 } // namespace v8 5703 } // namespace v8
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