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Merge pull request #8420 from mijovic/iceStackTooDeepFix

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Throwing stack too deep ICE in case of calling encode with too many a…
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Daniel Kirchner 2020-03-04 17:41:59 +01:00 committed by GitHub
commit 9318dae42c
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libsolidity/codegen/CompilerUtils.cpp
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@ -539,6 +539,10 @@ void CompilerUtils::encodeToMemory(
if (targetType->isDynamicallySized() && !_copyDynamicDataInPlace) if (targetType->isDynamicallySized() && !_copyDynamicDataInPlace)
{ {
// copy tail pointer (=mem_end - mem_start) to memory // copy tail pointer (=mem_end - mem_start) to memory
solAssert(
(2 + dynPointers) <= 16,
"Stack too deep(" + to_string(2 + dynPointers) + "), try using fewer variables."
);
m_context << dupInstruction(2 + dynPointers) << Instruction::DUP2; m_context << dupInstruction(2 + dynPointers) << Instruction::DUP2;
m_context << Instruction::SUB; m_context << Instruction::SUB;
m_context << dupInstruction(2 + dynPointers - thisDynPointer); m_context << dupInstruction(2 + dynPointers - thisDynPointer);