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codegen: shorten the bit truncation

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This commit is contained in:
Yoichi Hirai 2016-11-24 17:03:17 +01:00
parent 9d25b5601e
commit fa486f5b44
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GPG Key ID: E7B75D080FCF7992
1 changed files with 2 additions and 5 deletions
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7
libsolidity/codegen/CompilerUtils.cpp
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@ -492,11 +492,8 @@ void CompilerUtils::convertType(Type const& _typeOnStack, Type const& _targetTyp
{ {
if (typeOnStack.numBits() < 256) if (typeOnStack.numBits() < 256)
m_context m_context
<< (u256(1) << (256 - typeOnStack.numBits())) << ((u256(1) << typeOnStack.numBits()) - 1)
<< Instruction::SWAP1 << Instruction::AND;
<< Instruction::DUP2
<< Instruction::MUL
<< Instruction::DIV;
chopSignBitsPending = false; chopSignBitsPending = false;
} }
} }