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Merge pull request #1475 from ethereum/fail-on-identity-fail

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Throw if calling the identity precompile (memoryCopy) failed
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chriseth 2016-12-03 01:08:45 +01:00 committed by GitHub
commit 9be2fb12bd
2 changed files with 3 additions and 1 deletions
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1
Changelog.md
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@ -5,6 +5,7 @@ Features:
* Optimizer: Some dead code elimination.
Bugfixes:
* Code generator: throw if calling the identity precompile failed during memory (array) copying.
* Type checker: string literals that are not valid UTF-8 cannot be converted to string type
### 0.4.6 (2016-11-22)

3
libsolidity/codegen/CompilerUtils.cpp
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@ -312,7 +312,8 @@ void CompilerUtils::memoryCopy()
m_context << Instruction::DIV << u256(c_identityWordGas) << Instruction::MUL;
m_context << u256(c_identityGas) << Instruction::ADD;
m_context << Instruction::CALL;
m_context << Instruction::POP; // ignore return value
m_context << Instruction::ISZERO;
m_context.appendConditionalJumpTo(m_context.errorTag());
}
void CompilerUtils::splitExternalFunctionType(bool _leftAligned)