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Yul interpreter: Return selfbalance constant for the expression

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balance(address()) and balance constant otherwise.
This commit is contained in:
Bhargava Shastry 2020-06-30 13:34:38 +02:00
parent 76943023bd
commit d0ea1f97fd
2 changed files with 20 additions and 1 deletions
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16
test/libyul/yulInterpreterTests/self_balance.yul Normal file
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@ -0,0 +1,16 @@
{
mstore(0, balance(address()))
mstore(0x20, selfbalance())
mstore(0x40, balance(div(mul(address(), 2), 2)))
mstore(0x60, balance(add(address(), 1)))
}
// ====
// EVMVersion: >=istanbul
// ----
// Trace:
// Memory dump:
// 0: 0000000000000000000000000000000000000000000000000000000022223333
// 20: 0000000000000000000000000000000000000000000000000000000022223333
// 40: 0000000000000000000000000000000000000000000000000000000022223333
// 60: 0000000000000000000000000000000000000000000000000000000022222222
// Storage dump:

3
test/tools/yulInterpreter/EVMInstructionInterpreter.cpp
View File

@ -182,6 +182,9 @@ u256 EVMInstructionInterpreter::eval(
case Instruction::ADDRESS:
return m_state.address;
case Instruction::BALANCE:
if (arg[0] == m_state.address)
return m_state.selfbalance;
else
return m_state.balance;
case Instruction::SELFBALANCE:
return m_state.selfbalance;