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

Issue 2212383003: Revert of Separate Scope into DeclarationScope and Scope (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 4 years, 4 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 // 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/arm/lithium-codegen-arm.h" 5 #include "src/crankshaft/arm/lithium-codegen-arm.h"
6 6
7 #include "src/base/bits.h" 7 #include "src/base/bits.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/crankshaft/arm/lithium-gap-resolver-arm.h" 10 #include "src/crankshaft/arm/lithium-gap-resolver-arm.h"
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173 // Result of FastNewFunctionContextStub is always in new space. 173 // Result of FastNewFunctionContextStub is always in new space.
174 need_write_barrier = false; 174 need_write_barrier = false;
175 } 175 }
176 RecordSafepoint(deopt_mode); 176 RecordSafepoint(deopt_mode);
177 177
178 // Context is returned in both r0 and cp. It replaces the context 178 // Context is returned in both r0 and cp. It replaces the context
179 // passed to us. It's saved in the stack and kept live in cp. 179 // passed to us. It's saved in the stack and kept live in cp.
180 __ mov(cp, r0); 180 __ mov(cp, r0);
181 __ str(r0, MemOperand(fp, StandardFrameConstants::kContextOffset)); 181 __ str(r0, MemOperand(fp, StandardFrameConstants::kContextOffset));
182 // Copy any necessary parameters into the context. 182 // Copy any necessary parameters into the context.
183 int num_parameters = info()->scope()->num_parameters(); 183 int num_parameters = scope()->num_parameters();
184 int first_parameter = info()->scope()->has_this_declaration() ? -1 : 0; 184 int first_parameter = scope()->has_this_declaration() ? -1 : 0;
185 for (int i = first_parameter; i < num_parameters; i++) { 185 for (int i = first_parameter; i < num_parameters; i++) {
186 Variable* var = (i == -1) ? info()->scope()->receiver() 186 Variable* var = (i == -1) ? scope()->receiver() : scope()->parameter(i);
187 : info()->scope()->parameter(i);
188 if (var->IsContextSlot()) { 187 if (var->IsContextSlot()) {
189 int parameter_offset = StandardFrameConstants::kCallerSPOffset + 188 int parameter_offset = StandardFrameConstants::kCallerSPOffset +
190 (num_parameters - 1 - i) * kPointerSize; 189 (num_parameters - 1 - i) * kPointerSize;
191 // Load parameter from stack. 190 // Load parameter from stack.
192 __ ldr(r0, MemOperand(fp, parameter_offset)); 191 __ ldr(r0, MemOperand(fp, parameter_offset));
193 // Store it in the context. 192 // Store it in the context.
194 MemOperand target = ContextMemOperand(cp, var->index()); 193 MemOperand target = ContextMemOperand(cp, var->index());
195 __ str(r0, target); 194 __ str(r0, target);
196 // Update the write barrier. This clobbers r3 and r0. 195 // Update the write barrier. This clobbers r3 and r0.
197 if (need_write_barrier) { 196 if (need_write_barrier) {
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5527 __ ldr(result, FieldMemOperand(scratch, 5526 __ ldr(result, FieldMemOperand(scratch,
5528 FixedArray::kHeaderSize - kPointerSize)); 5527 FixedArray::kHeaderSize - kPointerSize));
5529 __ bind(deferred->exit()); 5528 __ bind(deferred->exit());
5530 __ bind(&done); 5529 __ bind(&done);
5531 } 5530 }
5532 5531
5533 #undef __ 5532 #undef __
5534 5533
5535 } // namespace internal 5534 } // namespace internal
5536 } // namespace v8 5535 } // namespace v8
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