Function LLVMFuzzerTestOneInput

test/tools/ossfuzz/strictasm_diff_ossfuzz.cpp:49–111

extern "C" int LLVMFuzzerTestOneInput(uint8_t const* _data, size_t _size);

extern "C" int LLVMFuzzerTestOneInput(uint8_t const* _data, size_t _size)
{
	if (_size > 600)
		return 0;

	std::string input(reinterpret_cast<char const*>(_data), _size);

	if (std::any_of(input.begin(), input.end(), [](char c) {
		return ((static_cast<unsigned char>(c) > 127) || !(isPrint(c) || (c == '\n') || (c == '\t')));
	}))
		return 0;

	YulStringRepository::reset();

	YulStack stack(
		langutil::EVMVersion(),
		std::nullopt,
		solidity::frontend::OptimiserSettings::full(),
		DebugInfoSelection::AllExceptExperimental()
	);
	try
	{
		if (
			!stack.parseAndAnalyze("source", input) ||
			!stack.parserResult()->hasCode() ||
			!stack.parserResult()->analysisInfo
		)
			return 0;
	}
	catch (Exception const&)
	{
		return 0;
	}

	std::ostringstream os1;
	std::ostringstream os2;
	// Disable memory tracing to avoid false positive reports
	// such as unused write to memory e.g.,
	// { mstore(0, 1) }
	// that would be removed by the redundant store eliminator.
	// TODO: Add EOF support
	yulFuzzerUtil::TerminationReason termReason = yulFuzzerUtil::interpret(
		os1,
		*stack.parserResult()->code(),
		/*disableMemoryTracing=*/true
	);
	if (yulFuzzerUtil::resourceLimitsExceeded(termReason))
		return 0;

	stack.optimize();
	termReason = yulFuzzerUtil::interpret(
		os2,
		*stack.parserResult()->code(),
		/*disableMemoryTracing=*/true
	);

	if (yulFuzzerUtil::resourceLimitsExceeded(termReason))
		return 0;