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Warn on using shift instructions

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This commit is contained in:
Alex Beregszaszi 2017-06-15 12:14:14 +01:00
parent 9e0446a22c
commit 468d0f6199
1 changed files with 16 additions and 0 deletions
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16
libsolidity/inlineasm/AsmAnalysis.cpp
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@ -548,6 +548,22 @@ void AsmAnalyzer::warnOnInstructions(solidity::Instruction _instr, SourceLocatio
"the Metropolis hard fork. Before that it acts as an invalid instruction."
);
static set<solidity::Instruction> experimentalInstructions{
solidity::Instruction::SHL,
solidity::Instruction::SHR,
solidity::Instruction::SAR,
solidity::Instruction::ROL,
solidity::Instruction::ROR
};
if (experimentalInstructions.count(_instr))
m_errorReporter.warning(
_location,
"The \"" +
boost::to_lower_copy(instructionInfo(_instr).name)
+ "\" instruction is only available after " +
"the Constantinople hard fork. Before that it acts as an invalid instruction."
);
if (_instr == solidity::Instruction::JUMP || _instr == solidity::Instruction::JUMPI || _instr == solidity::Instruction::JUMPDEST)
m_errorReporter.warning(
_location,