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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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40 // Emit constant loads. | 40 // Emit constant loads. |
41 builder.LoadLiteral(Smi::FromInt(0)) | 41 builder.LoadLiteral(Smi::FromInt(0)) |
42 .StoreAccumulatorInRegister(reg) | 42 .StoreAccumulatorInRegister(reg) |
43 .LoadLiteral(Smi::FromInt(8)) | 43 .LoadLiteral(Smi::FromInt(8)) |
44 .StoreAccumulatorInRegister(reg) | 44 .StoreAccumulatorInRegister(reg) |
45 .LoadLiteral(Smi::FromInt(10000000)) | 45 .LoadLiteral(Smi::FromInt(10000000)) |
46 .StoreAccumulatorInRegister(reg) | 46 .StoreAccumulatorInRegister(reg) |
47 .LoadLiteral(factory->NewStringFromStaticChars("A constant")) | 47 .LoadLiteral(factory->NewStringFromStaticChars("A constant")) |
48 .StoreAccumulatorInRegister(reg) | 48 .StoreAccumulatorInRegister(reg) |
49 .LoadUndefined() | 49 .LoadUndefined() |
50 .StoreAccumulatorInRegister(reg) | 50 .Debugger() // Prevent peephole optimization LdaNull, Star -> LdrNull. |
51 .LoadNull() | 51 .LoadNull() |
52 .StoreAccumulatorInRegister(reg) | 52 .StoreAccumulatorInRegister(reg) |
53 .LoadTheHole() | 53 .LoadTheHole() |
54 .StoreAccumulatorInRegister(reg) | 54 .StoreAccumulatorInRegister(reg) |
55 .LoadTrue() | 55 .LoadTrue() |
56 .StoreAccumulatorInRegister(reg) | 56 .StoreAccumulatorInRegister(reg) |
57 .LoadFalse() | 57 .LoadFalse() |
58 .StoreAccumulatorInRegister(wide); | 58 .StoreAccumulatorInRegister(wide); |
59 | 59 |
60 builder.StackCheck(0) | 60 builder.StackCheck(0) |
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339 } | 339 } |
340 i += prefix_offset + Bytecodes::Size(final_bytecode, operand_scale); | 340 i += prefix_offset + Bytecodes::Size(final_bytecode, operand_scale); |
341 } | 341 } |
342 | 342 |
343 // Insert entry for illegal bytecode as this is never willingly emitted. | 343 // Insert entry for illegal bytecode as this is never willingly emitted. |
344 scorecard[Bytecodes::ToByte(Bytecode::kIllegal)] = 1; | 344 scorecard[Bytecodes::ToByte(Bytecode::kIllegal)] = 1; |
345 | 345 |
346 // Insert entry for nop bytecode as this often gets optimized out. | 346 // Insert entry for nop bytecode as this often gets optimized out. |
347 scorecard[Bytecodes::ToByte(Bytecode::kNop)] = 1; | 347 scorecard[Bytecodes::ToByte(Bytecode::kNop)] = 1; |
348 | 348 |
| 349 // Insert entries for bytecodes only emiited by peephole optimizer. |
| 350 scorecard[Bytecodes::ToByte(Bytecode::kLdrNamedProperty)] = 1; |
| 351 scorecard[Bytecodes::ToByte(Bytecode::kLdrKeyedProperty)] = 1; |
| 352 scorecard[Bytecodes::ToByte(Bytecode::kLdrGlobal)] = 1; |
| 353 scorecard[Bytecodes::ToByte(Bytecode::kLdrContextSlot)] = 1; |
| 354 scorecard[Bytecodes::ToByte(Bytecode::kLdrUndefined)] = 1; |
| 355 |
349 // Check return occurs at the end and only once in the BytecodeArray. | 356 // Check return occurs at the end and only once in the BytecodeArray. |
350 CHECK_EQ(final_bytecode, Bytecode::kReturn); | 357 CHECK_EQ(final_bytecode, Bytecode::kReturn); |
351 CHECK_EQ(scorecard[Bytecodes::ToByte(final_bytecode)], 1); | 358 CHECK_EQ(scorecard[Bytecodes::ToByte(final_bytecode)], 1); |
352 | 359 |
353 #define CHECK_BYTECODE_PRESENT(Name, ...) \ | 360 #define CHECK_BYTECODE_PRESENT(Name, ...) \ |
354 /* Check Bytecode is marked in scorecard, unless it's a debug break */ \ | 361 /* Check Bytecode is marked in scorecard, unless it's a debug break */ \ |
355 if (!Bytecodes::IsDebugBreak(Bytecode::k##Name)) { \ | 362 if (!Bytecodes::IsDebugBreak(Bytecode::k##Name)) { \ |
356 CHECK_GE(scorecard[Bytecodes::ToByte(Bytecode::k##Name)], 1); \ | 363 CHECK_GE(scorecard[Bytecodes::ToByte(Bytecode::k##Name)], 1); \ |
357 } | 364 } |
358 BYTECODE_LIST(CHECK_BYTECODE_PRESENT) | 365 BYTECODE_LIST(CHECK_BYTECODE_PRESENT) |
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717 iterator.Advance(); | 724 iterator.Advance(); |
718 } | 725 } |
719 CHECK_EQ(iterator.current_bytecode(), Bytecode::kReturn); | 726 CHECK_EQ(iterator.current_bytecode(), Bytecode::kReturn); |
720 iterator.Advance(); | 727 iterator.Advance(); |
721 CHECK(iterator.done()); | 728 CHECK(iterator.done()); |
722 } | 729 } |
723 | 730 |
724 } // namespace interpreter | 731 } // namespace interpreter |
725 } // namespace internal | 732 } // namespace internal |
726 } // namespace v8 | 733 } // namespace v8 |
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