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Merge pull request #7330 from ethereum/fix-yuli-mload

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Yul interpreter: Out of bounds mloads return zero
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chriseth 2019-09-03 11:20:21 +02:00 committed by GitHub
commit d1831b159d
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1 changed files with 1 additions and 2 deletions
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3
test/tools/yulInterpreter/EVMInstructionInterpreter.cpp
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@ -250,8 +250,7 @@ u256 EVMInstructionInterpreter::eval(
case Instruction::MLOAD: case Instruction::MLOAD:
if (accessMemory(arg[0], 0x20)) if (accessMemory(arg[0], 0x20))
return readMemoryWord(arg[0]); return readMemoryWord(arg[0]);
else return 0;
return 0x1234 + arg[0];
case Instruction::MSTORE: case Instruction::MSTORE:
if (accessMemory(arg[0], 0x20)) if (accessMemory(arg[0], 0x20))
writeMemoryWord(arg[0], arg[1]); writeMemoryWord(arg[0], arg[1]);