Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 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 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 8 | #include "src/code-stubs.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 9 | #include "src/compiler/code-generator.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 10 | #include "src/compiler/instruction.h" |
| 11 | #include "src/compiler/linkage.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 12 | #include "src/compiler/opcodes.h" |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 13 | #include "src/macro-assembler.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 14 | |
| 15 | namespace v8 { |
| 16 | namespace internal { |
| 17 | namespace compiler { |
| 18 | |
| 19 | // Converts InstructionOperands from a given instruction to |
| 20 | // architecture-specific |
| 21 | // registers and operands after they have been assigned by the register |
| 22 | // allocator. |
| 23 | class InstructionOperandConverter { |
| 24 | public: |
| 25 | InstructionOperandConverter(CodeGenerator* gen, Instruction* instr) |
| 26 | : gen_(gen), instr_(instr) {} |
| 27 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 28 | // -- Instruction operand accesses with conversions -------------------------- |
| 29 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 30 | Register InputRegister(int index) { |
| 31 | return ToRegister(instr_->InputAt(index)); |
| 32 | } |
| 33 | |
| 34 | DoubleRegister InputDoubleRegister(int index) { |
| 35 | return ToDoubleRegister(instr_->InputAt(index)); |
| 36 | } |
| 37 | |
| 38 | double InputDouble(int index) { return ToDouble(instr_->InputAt(index)); } |
| 39 | |
| 40 | int32_t InputInt32(int index) { |
| 41 | return ToConstant(instr_->InputAt(index)).ToInt32(); |
| 42 | } |
| 43 | |
| 44 | int8_t InputInt8(int index) { return static_cast<int8_t>(InputInt32(index)); } |
| 45 | |
| 46 | int16_t InputInt16(int index) { |
| 47 | return static_cast<int16_t>(InputInt32(index)); |
| 48 | } |
| 49 | |
| 50 | uint8_t InputInt5(int index) { |
| 51 | return static_cast<uint8_t>(InputInt32(index) & 0x1F); |
| 52 | } |
| 53 | |
| 54 | uint8_t InputInt6(int index) { |
| 55 | return static_cast<uint8_t>(InputInt32(index) & 0x3F); |
| 56 | } |
| 57 | |
| 58 | Handle<HeapObject> InputHeapObject(int index) { |
| 59 | return ToHeapObject(instr_->InputAt(index)); |
| 60 | } |
| 61 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 62 | Label* InputLabel(int index) { return ToLabel(instr_->InputAt(index)); } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 63 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 64 | BasicBlock::RpoNumber InputRpo(int index) { |
| 65 | return ToRpoNumber(instr_->InputAt(index)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 66 | } |
| 67 | |
| 68 | Register OutputRegister(int index = 0) { |
| 69 | return ToRegister(instr_->OutputAt(index)); |
| 70 | } |
| 71 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 72 | Register TempRegister(int index) { return ToRegister(instr_->TempAt(index)); } |
| 73 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 74 | DoubleRegister OutputDoubleRegister() { |
| 75 | return ToDoubleRegister(instr_->Output()); |
| 76 | } |
| 77 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 78 | // -- Conversions for operands ----------------------------------------------- |
| 79 | |
| 80 | Label* ToLabel(InstructionOperand* op) { |
| 81 | return gen_->GetLabel(ToRpoNumber(op)); |
| 82 | } |
| 83 | |
| 84 | BasicBlock::RpoNumber ToRpoNumber(InstructionOperand* op) { |
| 85 | return ToConstant(op).ToRpoNumber(); |
| 86 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 87 | |
| 88 | Register ToRegister(InstructionOperand* op) { |
| 89 | DCHECK(op->IsRegister()); |
| 90 | return Register::FromAllocationIndex(op->index()); |
| 91 | } |
| 92 | |
| 93 | DoubleRegister ToDoubleRegister(InstructionOperand* op) { |
| 94 | DCHECK(op->IsDoubleRegister()); |
| 95 | return DoubleRegister::FromAllocationIndex(op->index()); |
| 96 | } |
| 97 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 98 | Constant ToConstant(InstructionOperand* op) { |
| 99 | if (op->IsImmediate()) { |
| 100 | return gen_->code()->GetImmediate(op->index()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 101 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 102 | return gen_->code()->GetConstant(op->index()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 103 | } |
| 104 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 105 | double ToDouble(InstructionOperand* op) { return ToConstant(op).ToFloat64(); } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 106 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 107 | Handle<HeapObject> ToHeapObject(InstructionOperand* op) { |
| 108 | return ToConstant(op).ToHeapObject(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 109 | } |
| 110 | |
| 111 | Frame* frame() const { return gen_->frame(); } |
| 112 | Isolate* isolate() const { return gen_->isolate(); } |
| 113 | Linkage* linkage() const { return gen_->linkage(); } |
| 114 | |
| 115 | protected: |
| 116 | CodeGenerator* gen_; |
| 117 | Instruction* instr_; |
| 118 | }; |
| 119 | |
| 120 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 121 | // Generator for out-of-line code that is emitted after the main code is done. |
| 122 | class OutOfLineCode : public ZoneObject { |
| 123 | public: |
| 124 | explicit OutOfLineCode(CodeGenerator* gen); |
| 125 | virtual ~OutOfLineCode(); |
| 126 | |
| 127 | virtual void Generate() = 0; |
| 128 | |
| 129 | Label* entry() { return &entry_; } |
| 130 | Label* exit() { return &exit_; } |
| 131 | MacroAssembler* masm() const { return masm_; } |
| 132 | OutOfLineCode* next() const { return next_; } |
| 133 | |
| 134 | private: |
| 135 | Label entry_; |
| 136 | Label exit_; |
| 137 | MacroAssembler* const masm_; |
| 138 | OutOfLineCode* const next_; |
| 139 | }; |
| 140 | |
| 141 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 142 | // TODO(dcarney): generify this on bleeding_edge and replace this call |
| 143 | // when merged. |
| 144 | static inline void FinishCode(MacroAssembler* masm) { |
| 145 | #if V8_TARGET_ARCH_ARM64 || V8_TARGET_ARCH_ARM |
| 146 | masm->CheckConstPool(true, false); |
| 147 | #endif |
| 148 | } |
| 149 | |
| 150 | } // namespace compiler |
| 151 | } // namespace internal |
| 152 | } // namespace v8 |
| 153 | |
| 154 | #endif // V8_COMPILER_CODE_GENERATOR_IMPL_H |