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1 // Copyright 2015 the V8 project authors. All rights reserved. | 1 // Copyright 2015 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/interpreter/bytecodes.h" | 5 #include "src/interpreter/bytecodes.h" |
6 | 6 |
7 #include "src/frames.h" | 7 #include "src/frames.h" |
8 #include "src/interpreter/bytecode-traits.h" | 8 #include "src/interpreter/bytecode-traits.h" |
9 | 9 |
10 namespace v8 { | 10 namespace v8 { |
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152 return Size; | 152 return Size; |
153 OPERAND_TYPE_LIST(CASE) | 153 OPERAND_TYPE_LIST(CASE) |
154 #undef CASE | 154 #undef CASE |
155 } | 155 } |
156 UNREACHABLE(); | 156 UNREACHABLE(); |
157 return OperandSize::kNone; | 157 return OperandSize::kNone; |
158 } | 158 } |
159 | 159 |
160 | 160 |
161 // static | 161 // static |
162 bool Bytecodes::IsJump(Bytecode bytecode) { | 162 bool Bytecodes::IsConditionalJumpImmediate(Bytecode bytecode) { |
163 return bytecode == Bytecode::kJump || bytecode == Bytecode::kJumpIfTrue || | 163 return bytecode == Bytecode::kJumpIfTrue || |
164 bytecode == Bytecode::kJumpIfFalse || | 164 bytecode == Bytecode::kJumpIfFalse || |
165 bytecode == Bytecode::kJumpIfToBooleanTrue || | 165 bytecode == Bytecode::kJumpIfToBooleanTrue || |
166 bytecode == Bytecode::kJumpIfToBooleanFalse || | 166 bytecode == Bytecode::kJumpIfToBooleanFalse || |
167 bytecode == Bytecode::kJumpIfNull || | 167 bytecode == Bytecode::kJumpIfNull || |
168 bytecode == Bytecode::kJumpIfUndefined; | 168 bytecode == Bytecode::kJumpIfUndefined; |
169 } | 169 } |
170 | 170 |
171 | 171 |
172 // static | 172 // static |
173 bool Bytecodes::IsConditionalJumpConstant(Bytecode bytecode) { | |
174 return bytecode == Bytecode::kJumpIfTrueConstant || | |
175 bytecode == Bytecode::kJumpIfFalseConstant || | |
176 bytecode == Bytecode::kJumpIfToBooleanTrueConstant || | |
177 bytecode == Bytecode::kJumpIfToBooleanFalseConstant || | |
178 bytecode == Bytecode::kJumpIfNullConstant || | |
179 bytecode == Bytecode::kJumpIfUndefinedConstant; | |
180 } | |
181 | |
182 | |
183 // static | |
184 bool Bytecodes::IsConditionalJump(Bytecode bytecode) { | |
185 return IsConditionalJumpImmediate(bytecode) || | |
186 IsConditionalJumpConstant(bytecode); | |
187 } | |
188 | |
189 | |
190 // static | |
191 bool Bytecodes::IsJumpImmediate(Bytecode bytecode) { | |
192 return bytecode == Bytecode::kJump || IsConditionalJumpImmediate(bytecode); | |
193 } | |
194 | |
195 | |
196 // static | |
173 bool Bytecodes::IsJumpConstant(Bytecode bytecode) { | 197 bool Bytecodes::IsJumpConstant(Bytecode bytecode) { |
174 return bytecode == Bytecode::kJumpConstant || | 198 return bytecode == Bytecode::kJumpConstant || |
175 bytecode == Bytecode::kJumpIfTrueConstant || | 199 IsConditionalJumpConstant(bytecode); |
176 bytecode == Bytecode::kJumpIfFalseConstant || | 200 } |
177 bytecode == Bytecode::kJumpIfToBooleanTrueConstant || | 201 |
178 bytecode == Bytecode::kJumpIfToBooleanFalseConstant || | 202 |
179 bytecode == Bytecode::kJumpIfNull || | 203 // static |
180 bytecode == Bytecode::kJumpIfUndefinedConstant; | 204 bool Bytecodes::IsJump(Bytecode bytecode) { |
205 return IsJumpImmediate(bytecode) || IsJumpConstant(bytecode); | |
206 } | |
207 | |
208 | |
209 // static | |
210 bool Bytecodes::IsLocalControlFlow(Bytecode bytecode) { | |
211 return bytecode == Bytecode::kReturn || IsJump(bytecode); | |
Michael Starzinger
2015/12/16 12:40:12
nit: The name is not fully fitting, because the li
oth
2015/12/16 14:17:06
Renamed to IsJumpOrReturn(). Pedants might say ret
| |
181 } | 212 } |
182 | 213 |
183 | 214 |
184 // static | 215 // static |
185 std::ostream& Bytecodes::Decode(std::ostream& os, const uint8_t* bytecode_start, | 216 std::ostream& Bytecodes::Decode(std::ostream& os, const uint8_t* bytecode_start, |
186 int parameter_count) { | 217 int parameter_count) { |
187 Vector<char> buf = Vector<char>::New(50); | 218 Vector<char> buf = Vector<char>::New(50); |
188 | 219 |
189 Bytecode bytecode = Bytecodes::FromByte(bytecode_start[0]); | 220 Bytecode bytecode = Bytecodes::FromByte(bytecode_start[0]); |
190 int bytecode_size = Bytecodes::Size(bytecode); | 221 int bytecode_size = Bytecodes::Size(bytecode); |
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354 } | 385 } |
355 if (reg5.is_valid() && reg4.index() + 1 != reg5.index()) { | 386 if (reg5.is_valid() && reg4.index() + 1 != reg5.index()) { |
356 return false; | 387 return false; |
357 } | 388 } |
358 return true; | 389 return true; |
359 } | 390 } |
360 | 391 |
361 } // namespace interpreter | 392 } // namespace interpreter |
362 } // namespace internal | 393 } // namespace internal |
363 } // namespace v8 | 394 } // namespace v8 |
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