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Optimize gas meter for TRON instructions #110

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Merged
CodeNinjaEvan merged 1 commit into from
Mar 10, 2026
Merged

Optimize gas meter for TRON instructions #110

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44 changes: 19 additions & 25 deletions libevmasm/GasMeter.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -169,8 +169,11 @@ GasMeter::GasConsumption GasMeter::estimateMax(AssemblyItem const& _item, bool _
valueSize = 0;
else if (!classes.knownZero(m_state->relativeStackElement(-1 - valueSize)))
gas += GasCosts::callValueTransferGas;
gas += memoryGas(-2 - valueSize, -3 - valueSize);
gas += memoryGas(-4 - valueSize, -5 - valueSize);
int tokenIdSize = 0;
if (_item.instruction() == Instruction::CALLTOKEN)
tokenIdSize = 1;
gas += memoryGas(-2 - valueSize - tokenIdSize, -3 - valueSize - tokenIdSize);
gas += memoryGas(-4 - valueSize - tokenIdSize, -5 - valueSize - tokenIdSize);
}
break;
}
Expand Down Expand Up @@ -208,38 +211,29 @@ GasMeter::GasConsumption GasMeter::estimateMax(AssemblyItem const& _item, bool _
case Instruction::ISCONTRACT:
gas = GasCosts::balanceGas(m_evmVersion);
break;
case Instruction::NATIVEFREEZE:
gas = runGas(Instruction::NATIVEFREEZE, m_evmVersion);
break;
case Instruction::NATIVEUNFREEZE:
gas = runGas(Instruction::NATIVEUNFREEZE, m_evmVersion);
break;
case Instruction::NATIVEFREEZEEXPIRETIME:
gas = runGas(Instruction::NATIVEFREEZEEXPIRETIME, m_evmVersion);
break;
case Instruction::NATIVEFREEZE:
gas = GasCosts::freezeV1Gas;
gas += GasCosts::callNewAccountGas;
break;
case Instruction::NATIVEUNFREEZE:
gas = GasCosts::freezeV1Gas;
break;
case Instruction::NATIVEFREEZEEXPIRETIME:
gas = GasCosts::expireTimeGas;
break;
case Instruction::NATIVEVOTE:
gas = runGas(Instruction::NATIVEVOTE, m_evmVersion);
gas = GasCosts::voteGas;
break;
case Instruction::NATIVEWITHDRAWREWARD:
gas = runGas(Instruction::NATIVEWITHDRAWREWARD, m_evmVersion);
gas = GasCosts::withdrawGas;
break;
case Instruction::NATIVEFREEZEBALANCEV2:
gas = runGas(Instruction::NATIVEFREEZEBALANCEV2, m_evmVersion);
break;
case Instruction::NATIVEUNFREEZEBALANCEV2:
gas = runGas(Instruction::NATIVEUNFREEZEBALANCEV2, m_evmVersion);
break;
case Instruction::NATIVECANCELALLUNFREEZEV2:
gas = runGas(Instruction::NATIVECANCELALLUNFREEZEV2, m_evmVersion);
break;
case Instruction::NATIVECANCELALLUNFREEZEV2:
case Instruction::NATIVEWITHDRAWEXPIREUNFREEZE:
gas = runGas(Instruction::NATIVEWITHDRAWEXPIREUNFREEZE, m_evmVersion);
break;
case Instruction::NATIVEDELEGATERESOURCE:
gas = runGas(Instruction::NATIVEDELEGATERESOURCE, m_evmVersion);
break;
case Instruction::NATIVEUNDELEGATERESOURCE:
gas = runGas(Instruction::NATIVEUNDELEGATERESOURCE, m_evmVersion);
gas = GasCosts::freezeV2Gas;
break;
case Instruction::CHAINID:
gas = runGas(Instruction::CHAINID, m_evmVersion);
Expand Down
6 changes: 6 additions & 0 deletions libevmasm/GasMeter.h
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Original file line number Diff line number Diff line change
Expand Up @@ -177,6 +177,12 @@ namespace GasCosts
return _evmVersion >= langutil::EVMVersion::istanbul() ? 16 : 68;
}
static unsigned const copyGas = 3;

static unsigned const freezeV1Gas = 20000;
static unsigned const expireTimeGas = 50;
static unsigned const freezeV2Gas = 10000;
static unsigned const withdrawGas = 20000;
static unsigned const voteGas = 30000;
}

/**
Expand Down