diff options
Diffstat (limited to 'deps/v8/src/interpreter/bytecodes.h')
| -rw-r--r-- | deps/v8/src/interpreter/bytecodes.h | 31 |
1 files changed, 22 insertions, 9 deletions
diff --git a/deps/v8/src/interpreter/bytecodes.h b/deps/v8/src/interpreter/bytecodes.h index 3919daeb20..72dfec59a9 100644 --- a/deps/v8/src/interpreter/bytecodes.h +++ b/deps/v8/src/interpreter/bytecodes.h @@ -105,8 +105,8 @@ namespace interpreter { OperandType::kIdx) \ V(LdaGlobalInsideTypeof, ImplicitRegisterUse::kWriteAccumulator, \ OperandType::kIdx, OperandType::kIdx) \ - V(StaGlobal, ImplicitRegisterUse::kReadWriteAccumulator, OperandType::kIdx, \ - OperandType::kIdx) \ + V(StaGlobal, ImplicitRegisterUse::kReadAndClobberAccumulator, \ + OperandType::kIdx, OperandType::kIdx) \ \ /* Context operations */ \ V(StaContextSlot, ImplicitRegisterUse::kReadAccumulator, OperandType::kReg, \ @@ -144,15 +144,16 @@ namespace interpreter { OperandType::kImm, OperandType::kUImm) \ \ /* Propery stores (StoreIC) operations */ \ - V(SetNamedProperty, ImplicitRegisterUse::kReadWriteAccumulator, \ + V(SetNamedProperty, ImplicitRegisterUse::kReadAndClobberAccumulator, \ OperandType::kReg, OperandType::kIdx, OperandType::kIdx) \ - V(DefineNamedOwnProperty, ImplicitRegisterUse::kReadWriteAccumulator, \ + V(DefineNamedOwnProperty, ImplicitRegisterUse::kReadAndClobberAccumulator, \ OperandType::kReg, OperandType::kIdx, OperandType::kIdx) \ - V(SetKeyedProperty, ImplicitRegisterUse::kReadWriteAccumulator, \ + V(SetKeyedProperty, ImplicitRegisterUse::kReadAndClobberAccumulator, \ OperandType::kReg, OperandType::kReg, OperandType::kIdx) \ - V(DefineKeyedOwnProperty, ImplicitRegisterUse::kReadWriteAccumulator, \ - OperandType::kReg, OperandType::kReg, OperandType::kIdx) \ - V(StaInArrayLiteral, ImplicitRegisterUse::kReadWriteAccumulator, \ + V(DefineKeyedOwnProperty, ImplicitRegisterUse::kReadAndClobberAccumulator, \ + OperandType::kReg, OperandType::kReg, OperandType::kFlag8, \ + OperandType::kIdx) \ + V(StaInArrayLiteral, ImplicitRegisterUse::kReadAndClobberAccumulator, \ OperandType::kReg, OperandType::kReg, OperandType::kIdx) \ V(DefineKeyedOwnPropertyInLiteral, ImplicitRegisterUse::kReadAccumulator, \ OperandType::kReg, OperandType::kReg, OperandType::kFlag8, \ @@ -394,7 +395,7 @@ namespace interpreter { \ /* Complex flow control For..in */ \ V(ForInEnumerate, ImplicitRegisterUse::kWriteAccumulator, OperandType::kReg) \ - V(ForInPrepare, ImplicitRegisterUse::kReadWriteAccumulator, \ + V(ForInPrepare, ImplicitRegisterUse::kReadAndClobberAccumulator, \ OperandType::kRegOutTriple, OperandType::kIdx) \ V(ForInContinue, ImplicitRegisterUse::kWriteAccumulator, OperandType::kReg, \ OperandType::kReg) \ @@ -655,6 +656,18 @@ class V8_EXPORT_PRIVATE Bytecodes final : public AllStatic { GetImplicitRegisterUse(bytecode)); } + // Returns true if |bytecode| writes the accumulator. + static bool ClobbersAccumulator(Bytecode bytecode) { + return BytecodeOperands::ClobbersAccumulator( + GetImplicitRegisterUse(bytecode)); + } + + // Returns true if |bytecode| writes the accumulator. + static bool WritesOrClobbersAccumulator(Bytecode bytecode) { + return BytecodeOperands::WritesOrClobbersAccumulator( + GetImplicitRegisterUse(bytecode)); + } + // Returns true if |bytecode| writes to a register not specified by an // operand. static bool WritesImplicitRegister(Bytecode bytecode) { |