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Yul fuzzer: Introduce basefee() and blobbasefee() builtins #14781

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Merged
bshastry merged 1 commit into from
Jan 20, 2024
Merged

Yul fuzzer: Introduce basefee() and blobbasefee() builtins #14781

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18 changes: 18 additions & 0 deletions test/tools/ossfuzz/protoToYul.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -118,6 +118,8 @@ EVMVersion ProtoConverter::evmVersionMapping(Program_Version const& _ver)
return EVMVersion::paris();
case Program::SHANGHAI:
return EVMVersion::shanghai();
case Program::CANCUN:
return EVMVersion::cancun();
}
}

Expand Down Expand Up @@ -761,6 +763,22 @@ void ProtoConverter::visit(NullaryOp const& _x)
else
m_output << dictionaryToken();
break;
case NullaryOp::BASEFEE:
// Replace calls to basefee() on unsupported EVMs with a dictionary
// token.
if (m_evmVersion.hasBaseFee())
m_output << "basefee()";
else
m_output << dictionaryToken();
break;
case NullaryOp::BLOBBASEFEE:
// Replace calls to blobbasefee() on unsupported EVMs with a dictionary
// token.
if (m_evmVersion.hasBlobBaseFee())
m_output << "blobbasefee()";
else
m_output << dictionaryToken();
break;
}
}

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3 changes: 3 additions & 0 deletions test/tools/ossfuzz/yulProto.proto
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Original file line number Diff line number Diff line change
Expand Up @@ -219,6 +219,8 @@ message NullaryOp {
GASLIMIT = 15;
SELFBALANCE = 16;
CHAINID = 17;
BASEFEE = 18;
BLOBBASEFEE = 19;
}
required NOp op = 1;
}
Expand Down Expand Up @@ -399,6 +401,7 @@ message Program {
LONDON = 8;
PARIS = 9;
SHANGHAI = 10;
CANCUN = 11;
}
oneof program_oneof {
Block block = 1;
Expand Down