Optimize gas meter for TRON instructions

Author: yanghang8612

libevmasm/GasMeter.cpp

@@ -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;
 		}
@@ -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);

libevmasm/GasMeter.h

@@ -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;
 }
 
 /**