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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/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #include "src/interpreter/bytecode-array-builder.h" | 7 #include "src/interpreter/bytecode-array-builder.h" |
8 #include "src/interpreter/bytecode-array-iterator.h" | 8 #include "src/interpreter/bytecode-array-iterator.h" |
9 #include "src/interpreter/bytecode-register-allocator.h" | 9 #include "src/interpreter/bytecode-register-allocator.h" |
10 #include "test/unittests/test-utils.h" | 10 #include "test/unittests/test-utils.h" |
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156 .CastAccumulatorToJSObject() | 156 .CastAccumulatorToJSObject() |
157 .CastAccumulatorToName(); | 157 .CastAccumulatorToName(); |
158 | 158 |
159 // Emit control flow. Return must be the last instruction. | 159 // Emit control flow. Return must be the last instruction. |
160 BytecodeLabel start; | 160 BytecodeLabel start; |
161 builder.Bind(&start); | 161 builder.Bind(&start); |
162 // Short jumps with Imm8 operands | 162 // Short jumps with Imm8 operands |
163 builder.Jump(&start) | 163 builder.Jump(&start) |
164 .JumpIfNull(&start) | 164 .JumpIfNull(&start) |
165 .JumpIfUndefined(&start) | 165 .JumpIfUndefined(&start) |
166 .JumpIfHole(&start) | |
167 .JumpIfNotHole(&start); | 166 .JumpIfNotHole(&start); |
| 167 |
168 // Perform an operation that returns boolean value to | 168 // Perform an operation that returns boolean value to |
169 // generate JumpIfTrue/False | 169 // generate JumpIfTrue/False |
170 builder.CompareOperation(Token::Value::EQ, reg, Strength::WEAK) | 170 builder.CompareOperation(Token::Value::EQ, reg, Strength::WEAK) |
171 .JumpIfTrue(&start) | 171 .JumpIfTrue(&start) |
172 .CompareOperation(Token::Value::EQ, reg, Strength::WEAK) | 172 .CompareOperation(Token::Value::EQ, reg, Strength::WEAK) |
173 .JumpIfFalse(&start); | 173 .JumpIfFalse(&start); |
174 // Perform an operation that returns a non-boolean operation to | 174 // Perform an operation that returns a non-boolean operation to |
175 // generate JumpIfToBooleanTrue/False. | 175 // generate JumpIfToBooleanTrue/False. |
176 builder.BinaryOperation(Token::Value::ADD, reg, Strength::WEAK) | 176 builder.BinaryOperation(Token::Value::ADD, reg, Strength::WEAK) |
177 .JumpIfTrue(&start) | 177 .JumpIfTrue(&start) |
178 .BinaryOperation(Token::Value::ADD, reg, Strength::WEAK) | 178 .BinaryOperation(Token::Value::ADD, reg, Strength::WEAK) |
179 .JumpIfFalse(&start); | 179 .JumpIfFalse(&start); |
180 // Insert dummy ops to force longer jumps | 180 // Insert dummy ops to force longer jumps |
181 for (int i = 0; i < 128; i++) { | 181 for (int i = 0; i < 128; i++) { |
182 builder.LoadTrue(); | 182 builder.LoadTrue(); |
183 } | 183 } |
184 // Longer jumps requiring Constant operand | 184 // Longer jumps requiring Constant operand |
185 builder.Jump(&start).JumpIfNull(&start).JumpIfUndefined(&start); | 185 builder.Jump(&start).JumpIfNull(&start).JumpIfUndefined(&start).JumpIfNotHole( |
| 186 &start); |
186 // Perform an operation that returns boolean value to | 187 // Perform an operation that returns boolean value to |
187 // generate JumpIfTrue/False | 188 // generate JumpIfTrue/False |
188 builder.CompareOperation(Token::Value::EQ, reg, Strength::WEAK) | 189 builder.CompareOperation(Token::Value::EQ, reg, Strength::WEAK) |
189 .JumpIfTrue(&start) | 190 .JumpIfTrue(&start) |
190 .CompareOperation(Token::Value::EQ, reg, Strength::WEAK) | 191 .CompareOperation(Token::Value::EQ, reg, Strength::WEAK) |
191 .JumpIfFalse(&start); | 192 .JumpIfFalse(&start); |
192 // Perform an operation that returns a non-boolean operation to | 193 // Perform an operation that returns a non-boolean operation to |
193 // generate JumpIfToBooleanTrue/False. | 194 // generate JumpIfToBooleanTrue/False. |
194 builder.BinaryOperation(Token::Value::ADD, reg, Strength::WEAK) | 195 builder.BinaryOperation(Token::Value::ADD, reg, Strength::WEAK) |
195 .JumpIfTrue(&start) | 196 .JumpIfTrue(&start) |
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258 false); | 259 false); |
259 builder.CreateClosure(shared_info2, NOT_TENURED); | 260 builder.CreateClosure(shared_info2, NOT_TENURED); |
260 | 261 |
261 // Emit wide variant of literal creation operations. | 262 // Emit wide variant of literal creation operations. |
262 builder.CreateRegExpLiteral(factory->NewStringFromStaticChars("wide_literal"), | 263 builder.CreateRegExpLiteral(factory->NewStringFromStaticChars("wide_literal"), |
263 0, 0) | 264 0, 0) |
264 .CreateArrayLiteral(factory->NewFixedArray(2), 0, 0) | 265 .CreateArrayLiteral(factory->NewFixedArray(2), 0, 0) |
265 .CreateObjectLiteral(factory->NewFixedArray(2), 0, 0); | 266 .CreateObjectLiteral(factory->NewFixedArray(2), 0, 0); |
266 | 267 |
267 // Longer jumps requiring ConstantWide operand | 268 // Longer jumps requiring ConstantWide operand |
268 builder.Jump(&start).JumpIfNull(&start).JumpIfUndefined(&start); | 269 builder.Jump(&start).JumpIfNull(&start).JumpIfUndefined(&start).JumpIfNotHole( |
| 270 &start); |
269 // Perform an operation that returns boolean value to | 271 // Perform an operation that returns boolean value to |
270 // generate JumpIfTrue/False | 272 // generate JumpIfTrue/False |
271 builder.CompareOperation(Token::Value::EQ, reg, Strength::WEAK) | 273 builder.CompareOperation(Token::Value::EQ, reg, Strength::WEAK) |
272 .JumpIfTrue(&start) | 274 .JumpIfTrue(&start) |
273 .CompareOperation(Token::Value::EQ, reg, Strength::WEAK) | 275 .CompareOperation(Token::Value::EQ, reg, Strength::WEAK) |
274 .JumpIfFalse(&start); | 276 .JumpIfFalse(&start); |
275 // Perform an operation that returns a non-boolean operation to | 277 // Perform an operation that returns a non-boolean operation to |
276 // generate JumpIfToBooleanTrue/False. | 278 // generate JumpIfToBooleanTrue/False. |
277 builder.BinaryOperation(Token::Value::ADD, reg, Strength::WEAK) | 279 builder.BinaryOperation(Token::Value::ADD, reg, Strength::WEAK) |
278 .JumpIfTrue(&start) | 280 .JumpIfTrue(&start) |
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658 iterator.Advance(); | 660 iterator.Advance(); |
659 } | 661 } |
660 CHECK_EQ(iterator.current_bytecode(), Bytecode::kReturn); | 662 CHECK_EQ(iterator.current_bytecode(), Bytecode::kReturn); |
661 iterator.Advance(); | 663 iterator.Advance(); |
662 CHECK(iterator.done()); | 664 CHECK(iterator.done()); |
663 } | 665 } |
664 | 666 |
665 } // namespace interpreter | 667 } // namespace interpreter |
666 } // namespace internal | 668 } // namespace internal |
667 } // namespace v8 | 669 } // namespace v8 |
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