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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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