diff options
Diffstat (limited to 'deps/v8/src/interpreter/bytecodes.h')
| -rw-r--r-- | deps/v8/src/interpreter/bytecodes.h | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/deps/v8/src/interpreter/bytecodes.h b/deps/v8/src/interpreter/bytecodes.h index baf9e88963..83417fe879 100644 --- a/deps/v8/src/interpreter/bytecodes.h +++ b/deps/v8/src/interpreter/bytecodes.h @@ -284,6 +284,10 @@ namespace interpreter { V(JumpIfJSReceiver, AccumulatorUse::kRead, OperandType::kUImm) \ V(JumpIfNotHole, AccumulatorUse::kRead, OperandType::kUImm) \ \ + /* Smi-table lookup for switch statements */ \ + V(SwitchOnSmiNoFeedback, AccumulatorUse::kRead, OperandType::kIdx, \ + OperandType::kUImm, OperandType::kImm) \ + \ /* Complex flow control For..in */ \ V(ForInPrepare, AccumulatorUse::kNone, OperandType::kReg, \ OperandType::kRegOutTriple) \ @@ -611,13 +615,18 @@ class V8_EXPORT_PRIVATE Bytecodes final { return IsJump(bytecode) && !IsJumpIfToBoolean(bytecode); } + // Returns true if the bytecode is a switch. + static constexpr bool IsSwitch(Bytecode bytecode) { + return bytecode == Bytecode::kSwitchOnSmiNoFeedback; + } + // Returns true if |bytecode| has no effects. These bytecodes only manipulate // interpreter frame state and will never throw. static constexpr bool IsWithoutExternalSideEffects(Bytecode bytecode) { return (IsAccumulatorLoadWithoutEffects(bytecode) || IsRegisterLoadWithoutEffects(bytecode) || IsCompareWithoutEffects(bytecode) || bytecode == Bytecode::kNop || - IsJumpWithoutEffects(bytecode)); + IsJumpWithoutEffects(bytecode) || IsSwitch(bytecode)); } // Returns true if the bytecode is Ldar or Star. @@ -640,7 +649,6 @@ class V8_EXPORT_PRIVATE Bytecodes final { bytecode == Bytecode::kConstruct || bytecode == Bytecode::kCallWithSpread || bytecode == Bytecode::kConstructWithSpread || - bytecode == Bytecode::kInvokeIntrinsic || bytecode == Bytecode::kCallJSRuntime; } @@ -752,7 +760,8 @@ class V8_EXPORT_PRIVATE Bytecodes final { // Returns the receiver mode of the given call bytecode. static ConvertReceiverMode GetReceiverMode(Bytecode bytecode) { - DCHECK(IsCallOrConstruct(bytecode)); + DCHECK(IsCallOrConstruct(bytecode) || + bytecode == Bytecode::kInvokeIntrinsic); switch (bytecode) { case Bytecode::kCallProperty: case Bytecode::kCallProperty0: |