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Side by Side Diff: src/compiler/x87/instruction-selector-x87.cc

Issue 2122853002: Implement UnaligedLoad and UnaligedStore turbofan operators. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 4 years, 5 months 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/base/adapters.h" 5 #include "src/base/adapters.h"
6 #include "src/compiler/instruction-selector-impl.h" 6 #include "src/compiler/instruction-selector-impl.h"
7 #include "src/compiler/node-matchers.h" 7 #include "src/compiler/node-matchers.h"
8 #include "src/compiler/node-properties.h" 8 #include "src/compiler/node-properties.h"
9 9
10 namespace v8 { 10 namespace v8 {
(...skipping 281 matching lines...) Expand 10 before | Expand all | Expand 10 after
292 AddressingMode addressing_mode = 292 AddressingMode addressing_mode =
293 g.GetEffectiveAddressMemoryOperand(node, inputs, &input_count); 293 g.GetEffectiveAddressMemoryOperand(node, inputs, &input_count);
294 InstructionCode code = 294 InstructionCode code =
295 opcode | AddressingModeField::encode(addressing_mode); 295 opcode | AddressingModeField::encode(addressing_mode);
296 inputs[input_count++] = val; 296 inputs[input_count++] = val;
297 Emit(code, 0, static_cast<InstructionOperand*>(nullptr), input_count, 297 Emit(code, 0, static_cast<InstructionOperand*>(nullptr), input_count,
298 inputs); 298 inputs);
299 } 299 }
300 } 300 }
301 301
302 // Architecture supports unaligned access, therefore VisitLoad is used instead
303 void InstructionSelector::VisitUnalignedLoad(Node* node) { UNREACHABLE(); }
304
305 // Architecture supports unaligned access, therefore VisitStore is used instead
306 void InstructionSelector::VisitUnalignedStore(Node* node) { UNREACHABLE(); }
302 307
303 void InstructionSelector::VisitCheckedLoad(Node* node) { 308 void InstructionSelector::VisitCheckedLoad(Node* node) {
304 CheckedLoadRepresentation load_rep = CheckedLoadRepresentationOf(node->op()); 309 CheckedLoadRepresentation load_rep = CheckedLoadRepresentationOf(node->op());
305 X87OperandGenerator g(this); 310 X87OperandGenerator g(this);
306 Node* const buffer = node->InputAt(0); 311 Node* const buffer = node->InputAt(0);
307 Node* const offset = node->InputAt(1); 312 Node* const offset = node->InputAt(1);
308 Node* const length = node->InputAt(2); 313 Node* const length = node->InputAt(2);
309 ArchOpcode opcode = kArchNop; 314 ArchOpcode opcode = kArchNop;
310 switch (load_rep.representation()) { 315 switch (load_rep.representation()) {
311 case MachineRepresentation::kWord8: 316 case MachineRepresentation::kWord8:
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1709 // static 1714 // static
1710 MachineOperatorBuilder::AlignmentRequirements 1715 MachineOperatorBuilder::AlignmentRequirements
1711 InstructionSelector::AlignmentRequirements() { 1716 InstructionSelector::AlignmentRequirements() {
1712 return MachineOperatorBuilder::AlignmentRequirements:: 1717 return MachineOperatorBuilder::AlignmentRequirements::
1713 FullUnalignedAccessSupport(); 1718 FullUnalignedAccessSupport();
1714 } 1719 }
1715 1720
1716 } // namespace compiler 1721 } // namespace compiler
1717 } // namespace internal 1722 } // namespace internal
1718 } // namespace v8 1723 } // namespace v8
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