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codegen: cleanup values to fit in storage bytes

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Yoichi Hirai 2016-11-25 15:50:46 +01:00
parent 548b7ce42d
commit 0be5859503
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1 changed files with 4 additions and 0 deletions
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4
libsolidity/codegen/CompilerUtils.cpp
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@ -738,6 +738,10 @@ void CompilerUtils::convertType(Type const& _typeOnStack, Type const& _targetTyp
default: default:
// All other types should not be convertible to non-equal types. // All other types should not be convertible to non-equal types.
solAssert(_typeOnStack == _targetType, "Invalid type conversion requested."); solAssert(_typeOnStack == _targetType, "Invalid type conversion requested.");
if (_cleanupNeeded && _targetType.canBeStored() && _targetType.storageBytes() < 32)
m_context
<< ((u256(1) << (8 * _targetType.storageBytes())) - 1)
<< Instruction::AND;
break; break;
} }