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.
5 #ifndef V8_COMPILER_CODE_GENERATOR_IMPL_H_
6 #define V8_COMPILER_CODE_GENERATOR_IMPL_H_
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"
22 // Converts InstructionOperands from a given instruction to
23 // architecture-specific
24 // registers and operands after they have been assigned by the register
26 class InstructionOperandConverter {
28 InstructionOperandConverter(CodeGenerator* gen, Instruction* instr)
29 : gen_(gen), instr_(instr) {}
31 Register InputRegister(int index) {
32 return ToRegister(instr_->InputAt(index));
35 DoubleRegister InputDoubleRegister(int index) {
36 return ToDoubleRegister(instr_->InputAt(index));
39 double InputDouble(int index) { return ToDouble(instr_->InputAt(index)); }
41 int32_t InputInt32(int index) {
42 return ToConstant(instr_->InputAt(index)).ToInt32();
45 int8_t InputInt8(int index) { return static_cast<int8_t>(InputInt32(index)); }
47 int16_t InputInt16(int index) {
48 return static_cast<int16_t>(InputInt32(index));
51 uint8_t InputInt5(int index) {
52 return static_cast<uint8_t>(InputInt32(index) & 0x1F);
55 uint8_t InputInt6(int index) {
56 return static_cast<uint8_t>(InputInt32(index) & 0x3F);
59 Handle<HeapObject> InputHeapObject(int index) {
60 return ToHeapObject(instr_->InputAt(index));
63 Label* InputLabel(int index) {
64 return gen_->code()->GetLabel(InputBlock(index));
67 BasicBlock* InputBlock(int index) {
68 NodeId block_id = static_cast<NodeId>(InputInt32(index));
69 // operand should be a block id.
70 DCHECK(block_id >= 0);
71 DCHECK(block_id < gen_->schedule()->BasicBlockCount());
72 return gen_->schedule()->GetBlockById(block_id);
75 Register OutputRegister(int index = 0) {
76 return ToRegister(instr_->OutputAt(index));
79 DoubleRegister OutputDoubleRegister() {
80 return ToDoubleRegister(instr_->Output());
83 Register TempRegister(int index) { return ToRegister(instr_->TempAt(index)); }
85 Register ToRegister(InstructionOperand* op) {
86 DCHECK(op->IsRegister());
87 return Register::FromAllocationIndex(op->index());
90 DoubleRegister ToDoubleRegister(InstructionOperand* op) {
91 DCHECK(op->IsDoubleRegister());
92 return DoubleRegister::FromAllocationIndex(op->index());
95 Constant ToConstant(InstructionOperand* operand) {
96 if (operand->IsImmediate()) {
97 return gen_->code()->GetImmediate(operand->index());
99 return gen_->code()->GetConstant(operand->index());
102 double ToDouble(InstructionOperand* operand) {
103 return ToConstant(operand).ToFloat64();
106 Handle<HeapObject> ToHeapObject(InstructionOperand* operand) {
107 return ToConstant(operand).ToHeapObject();
110 Frame* frame() const { return gen_->frame(); }
111 Isolate* isolate() const { return gen_->isolate(); }
112 Linkage* linkage() const { return gen_->linkage(); }
120 // TODO(dcarney): generify this on bleeding_edge and replace this call
122 static inline void FinishCode(MacroAssembler* masm) {
123 #if V8_TARGET_ARCH_ARM64 || V8_TARGET_ARCH_ARM
124 masm->CheckConstPool(true, false);
128 } // namespace compiler
129 } // namespace internal
132 #endif // V8_COMPILER_CODE_GENERATOR_IMPL_H