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| 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 |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef V8_COMPILER_CODE_GENERATOR_IMPL_H_ |
| 6 #define V8_COMPILER_CODE_GENERATOR_IMPL_H_ |
| 7 |
| 8 #include "src/compiler/code-generator.h" |
| 9 #include "src/compiler/common-operator.h" |
| 10 #include "src/compiler/generic-graph.h" |
| 11 #include "src/compiler/instruction.h" |
| 12 #include "src/compiler/linkage.h" |
| 13 #include "src/compiler/machine-operator.h" |
| 14 #include "src/compiler/node.h" |
| 15 #include "src/compiler/opcodes.h" |
| 16 #include "src/compiler/operator.h" |
| 17 |
| 18 namespace v8 { |
| 19 namespace internal { |
| 20 namespace compiler { |
| 21 |
| 22 // Converts InstructionOperands from a given instruction to |
| 23 // architecture-specific |
| 24 // registers and operands after they have been assigned by the register |
| 25 // allocator. |
| 26 class InstructionOperandConverter { |
| 27 public: |
| 28 InstructionOperandConverter(CodeGenerator* gen, Instruction* instr) |
| 29 : gen_(gen), instr_(instr) {} |
| 30 |
| 31 Register InputRegister(int index) { |
| 32 return ToRegister(instr_->InputAt(index)); |
| 33 } |
| 34 |
| 35 DoubleRegister InputDoubleRegister(int index) { |
| 36 return ToDoubleRegister(instr_->InputAt(index)); |
| 37 } |
| 38 |
| 39 double InputDouble(int index) { return ToDouble(instr_->InputAt(index)); } |
| 40 |
| 41 int32_t InputInt32(int index) { |
| 42 return ToConstant(instr_->InputAt(index)).ToInt32(); |
| 43 } |
| 44 |
| 45 int8_t InputInt8(int index) { return static_cast<int8_t>(InputInt32(index)); } |
| 46 |
| 47 int16_t InputInt16(int index) { |
| 48 return static_cast<int16_t>(InputInt32(index)); |
| 49 } |
| 50 |
| 51 uint8_t InputInt5(int index) { |
| 52 return static_cast<uint8_t>(InputInt32(index) & 0x1F); |
| 53 } |
| 54 |
| 55 uint8_t InputInt6(int index) { |
| 56 return static_cast<uint8_t>(InputInt32(index) & 0x3F); |
| 57 } |
| 58 |
| 59 Handle<HeapObject> InputHeapObject(int index) { |
| 60 return ToHeapObject(instr_->InputAt(index)); |
| 61 } |
| 62 |
| 63 Label* InputLabel(int index) { |
| 64 return gen_->code()->GetLabel(InputBlock(index)); |
| 65 } |
| 66 |
| 67 BasicBlock* InputBlock(int index) { |
| 68 NodeId block_id = static_cast<NodeId>(instr_->InputAt(index)->index()); |
| 69 // operand should be a block id. |
| 70 ASSERT(block_id >= 0); |
| 71 ASSERT(block_id < gen_->schedule()->BasicBlockCount()); |
| 72 return gen_->schedule()->GetBlockById(block_id); |
| 73 } |
| 74 |
| 75 Register OutputRegister() { return ToRegister(instr_->Output()); } |
| 76 |
| 77 DoubleRegister OutputDoubleRegister() { |
| 78 return ToDoubleRegister(instr_->Output()); |
| 79 } |
| 80 |
| 81 Register TempRegister(int index) { return ToRegister(instr_->TempAt(index)); } |
| 82 |
| 83 Register ToRegister(InstructionOperand* op) { |
| 84 ASSERT(op->IsRegister()); |
| 85 return Register::FromAllocationIndex(op->index()); |
| 86 } |
| 87 |
| 88 DoubleRegister ToDoubleRegister(InstructionOperand* op) { |
| 89 ASSERT(op->IsDoubleRegister()); |
| 90 return DoubleRegister::FromAllocationIndex(op->index()); |
| 91 } |
| 92 |
| 93 Constant ToConstant(InstructionOperand* operand) { |
| 94 if (operand->IsImmediate()) { |
| 95 return gen_->code()->GetImmediate(operand->index()); |
| 96 } |
| 97 return gen_->code()->GetConstant(operand->index()); |
| 98 } |
| 99 |
| 100 double ToDouble(InstructionOperand* operand) { |
| 101 return ToConstant(operand).ToFloat64(); |
| 102 } |
| 103 |
| 104 Handle<HeapObject> ToHeapObject(InstructionOperand* operand) { |
| 105 return ToConstant(operand).ToHeapObject(); |
| 106 } |
| 107 |
| 108 Frame* frame() const { return gen_->frame(); } |
| 109 Isolate* isolate() const { return gen_->isolate(); } |
| 110 Linkage* linkage() const { return gen_->linkage(); } |
| 111 |
| 112 protected: |
| 113 CodeGenerator* gen_; |
| 114 Instruction* instr_; |
| 115 }; |
| 116 |
| 117 |
| 118 // TODO(dcarney): generify this on bleeding_edge and replace this call |
| 119 // when merged. |
| 120 static inline void FinishCode(MacroAssembler* masm) { |
| 121 #if V8_TARGET_ARCH_ARM64 || V8_TARGET_ARCH_ARM |
| 122 masm->CheckConstPool(true, false); |
| 123 #endif |
| 124 } |
| 125 |
| 126 } // namespace compiler |
| 127 } // namespace internal |
| 128 } // namespace v8 |
| 129 |
| 130 #endif // V8_COMPILER_CODE_GENERATOR_IMPL_H |
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