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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/instruction-selector-impl.h" | 5 #include "src/compiler/instruction-selector-impl.h" |
| 6 #include "src/compiler/node-matchers.h" | 6 #include "src/compiler/node-matchers.h" |
| 7 | 7 |
| 8 namespace v8 { | 8 namespace v8 { |
| 9 namespace internal { | 9 namespace internal { |
| 10 namespace compiler { | 10 namespace compiler { |
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| 112 | 112 |
| 113 StoreRepresentation store_rep = OpParameter<StoreRepresentation>(node); | 113 StoreRepresentation store_rep = OpParameter<StoreRepresentation>(node); |
| 114 MachineType rep = RepresentationOf(store_rep.machine_type); | 114 MachineType rep = RepresentationOf(store_rep.machine_type); |
| 115 if (store_rep.write_barrier_kind == kFullWriteBarrier) { | 115 if (store_rep.write_barrier_kind == kFullWriteBarrier) { |
| 116 DCHECK(rep == kRepTagged); | 116 DCHECK(rep == kRepTagged); |
| 117 // TODO(dcarney): refactor RecordWrite function to take temp registers | 117 // TODO(dcarney): refactor RecordWrite function to take temp registers |
| 118 // and pass them here instead of using fixed regs | 118 // and pass them here instead of using fixed regs |
| 119 // TODO(dcarney): handle immediate indices. | 119 // TODO(dcarney): handle immediate indices. |
| 120 InstructionOperand* temps[] = {g.TempRegister(rcx), g.TempRegister(rdx)}; | 120 InstructionOperand* temps[] = {g.TempRegister(rcx), g.TempRegister(rdx)}; |
| 121 Emit(kX64StoreWriteBarrier, NULL, g.UseFixed(base, rbx), | 121 Emit(kX64StoreWriteBarrier, NULL, g.UseFixed(base, rbx), |
| 122 g.UseFixed(index, rcx), g.UseFixed(value, rdx), ARRAY_SIZE(temps), | 122 g.UseFixed(index, rcx), g.UseFixed(value, rdx), arraysize(temps), |
| 123 temps); | 123 temps); |
| 124 return; | 124 return; |
| 125 } | 125 } |
| 126 DCHECK_EQ(kNoWriteBarrier, store_rep.write_barrier_kind); | 126 DCHECK_EQ(kNoWriteBarrier, store_rep.write_barrier_kind); |
| 127 InstructionOperand* val; | 127 InstructionOperand* val; |
| 128 if (g.CanBeImmediate(value)) { | 128 if (g.CanBeImmediate(value)) { |
| 129 val = g.UseImmediate(value); | 129 val = g.UseImmediate(value); |
| 130 } else if (rep == kRepWord8 || rep == kRepBit) { | 130 } else if (rep == kRepWord8 || rep == kRepBit) { |
| 131 val = g.UseByteRegister(value); | 131 val = g.UseByteRegister(value); |
| 132 } else { | 132 } else { |
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| 199 inputs[input_count++] = g.Label(cont->false_block()); | 199 inputs[input_count++] = g.Label(cont->false_block()); |
| 200 } | 200 } |
| 201 | 201 |
| 202 outputs[output_count++] = g.DefineSameAsFirst(node); | 202 outputs[output_count++] = g.DefineSameAsFirst(node); |
| 203 if (cont->IsSet()) { | 203 if (cont->IsSet()) { |
| 204 outputs[output_count++] = g.DefineAsRegister(cont->result()); | 204 outputs[output_count++] = g.DefineAsRegister(cont->result()); |
| 205 } | 205 } |
| 206 | 206 |
| 207 DCHECK_NE(0, input_count); | 207 DCHECK_NE(0, input_count); |
| 208 DCHECK_NE(0, output_count); | 208 DCHECK_NE(0, output_count); |
| 209 DCHECK_GE(ARRAY_SIZE(inputs), input_count); | 209 DCHECK_GE(arraysize(inputs), input_count); |
| 210 DCHECK_GE(ARRAY_SIZE(outputs), output_count); | 210 DCHECK_GE(arraysize(outputs), output_count); |
| 211 | 211 |
| 212 Instruction* instr = selector->Emit(cont->Encode(opcode), output_count, | 212 Instruction* instr = selector->Emit(cont->Encode(opcode), output_count, |
| 213 outputs, input_count, inputs); | 213 outputs, input_count, inputs); |
| 214 if (cont->IsBranch()) instr->MarkAsControl(); | 214 if (cont->IsBranch()) instr->MarkAsControl(); |
| 215 } | 215 } |
| 216 | 216 |
| 217 | 217 |
| 218 // Shared routine for multiple binary operations. | 218 // Shared routine for multiple binary operations. |
| 219 static void VisitBinop(InstructionSelector* selector, Node* node, | 219 static void VisitBinop(InstructionSelector* selector, Node* node, |
| 220 InstructionCode opcode) { | 220 InstructionCode opcode) { |
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| 421 VisitMul(this, node, kX64Imul); | 421 VisitMul(this, node, kX64Imul); |
| 422 } | 422 } |
| 423 | 423 |
| 424 | 424 |
| 425 static void VisitDiv(InstructionSelector* selector, Node* node, | 425 static void VisitDiv(InstructionSelector* selector, Node* node, |
| 426 ArchOpcode opcode) { | 426 ArchOpcode opcode) { |
| 427 X64OperandGenerator g(selector); | 427 X64OperandGenerator g(selector); |
| 428 InstructionOperand* temps[] = {g.TempRegister(rdx)}; | 428 InstructionOperand* temps[] = {g.TempRegister(rdx)}; |
| 429 selector->Emit( | 429 selector->Emit( |
| 430 opcode, g.DefineAsFixed(node, rax), g.UseFixed(node->InputAt(0), rax), | 430 opcode, g.DefineAsFixed(node, rax), g.UseFixed(node->InputAt(0), rax), |
| 431 g.UseUniqueRegister(node->InputAt(1)), ARRAY_SIZE(temps), temps); | 431 g.UseUniqueRegister(node->InputAt(1)), arraysize(temps), temps); |
| 432 } | 432 } |
| 433 | 433 |
| 434 | 434 |
| 435 void InstructionSelector::VisitInt32Div(Node* node) { | 435 void InstructionSelector::VisitInt32Div(Node* node) { |
| 436 VisitDiv(this, node, kX64Idiv32); | 436 VisitDiv(this, node, kX64Idiv32); |
| 437 } | 437 } |
| 438 | 438 |
| 439 | 439 |
| 440 void InstructionSelector::VisitInt64Div(Node* node) { | 440 void InstructionSelector::VisitInt64Div(Node* node) { |
| 441 VisitDiv(this, node, kX64Idiv); | 441 VisitDiv(this, node, kX64Idiv); |
| 442 } | 442 } |
| 443 | 443 |
| 444 | 444 |
| 445 void InstructionSelector::VisitInt32UDiv(Node* node) { | 445 void InstructionSelector::VisitInt32UDiv(Node* node) { |
| 446 VisitDiv(this, node, kX64Udiv32); | 446 VisitDiv(this, node, kX64Udiv32); |
| 447 } | 447 } |
| 448 | 448 |
| 449 | 449 |
| 450 void InstructionSelector::VisitInt64UDiv(Node* node) { | 450 void InstructionSelector::VisitInt64UDiv(Node* node) { |
| 451 VisitDiv(this, node, kX64Udiv); | 451 VisitDiv(this, node, kX64Udiv); |
| 452 } | 452 } |
| 453 | 453 |
| 454 | 454 |
| 455 static void VisitMod(InstructionSelector* selector, Node* node, | 455 static void VisitMod(InstructionSelector* selector, Node* node, |
| 456 ArchOpcode opcode) { | 456 ArchOpcode opcode) { |
| 457 X64OperandGenerator g(selector); | 457 X64OperandGenerator g(selector); |
| 458 InstructionOperand* temps[] = {g.TempRegister(rax), g.TempRegister(rdx)}; | 458 InstructionOperand* temps[] = {g.TempRegister(rax), g.TempRegister(rdx)}; |
| 459 selector->Emit( | 459 selector->Emit( |
| 460 opcode, g.DefineAsFixed(node, rdx), g.UseFixed(node->InputAt(0), rax), | 460 opcode, g.DefineAsFixed(node, rdx), g.UseFixed(node->InputAt(0), rax), |
| 461 g.UseUniqueRegister(node->InputAt(1)), ARRAY_SIZE(temps), temps); | 461 g.UseUniqueRegister(node->InputAt(1)), arraysize(temps), temps); |
| 462 } | 462 } |
| 463 | 463 |
| 464 | 464 |
| 465 void InstructionSelector::VisitInt32Mod(Node* node) { | 465 void InstructionSelector::VisitInt32Mod(Node* node) { |
| 466 VisitMod(this, node, kX64Idiv32); | 466 VisitMod(this, node, kX64Idiv32); |
| 467 } | 467 } |
| 468 | 468 |
| 469 | 469 |
| 470 void InstructionSelector::VisitInt64Mod(Node* node) { | 470 void InstructionSelector::VisitInt64Mod(Node* node) { |
| 471 VisitMod(this, node, kX64Idiv); | 471 VisitMod(this, node, kX64Idiv); |
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| 729 DCHECK(deoptimization == NULL && continuation == NULL); | 729 DCHECK(deoptimization == NULL && continuation == NULL); |
| 730 Emit(kPopStack | | 730 Emit(kPopStack | |
| 731 MiscField::encode(static_cast<int>(buffer.pushed_nodes.size())), | 731 MiscField::encode(static_cast<int>(buffer.pushed_nodes.size())), |
| 732 NULL); | 732 NULL); |
| 733 } | 733 } |
| 734 } | 734 } |
| 735 | 735 |
| 736 } // namespace compiler | 736 } // namespace compiler |
| 737 } // namespace internal | 737 } // namespace internal |
| 738 } // namespace v8 | 738 } // namespace v8 |
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