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Merge pull request #10753 from ethereum/ir-negate

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Fix YulUtilFunctions::negateNumberWrappingFunction
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chriseth 2021-01-14 10:48:15 +01:00 committed by GitHub
commit afbf68f79c
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2 changed files with 3 additions and 1 deletions
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2
libsolidity/codegen/YulUtilFunctions.cpp
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@ -3765,7 +3765,7 @@ string YulUtilFunctions::negateNumberWrappingFunction(Type const& _type)
return m_functionCollector.createFunction(functionName, [&]() { return m_functionCollector.createFunction(functionName, [&]() {
return Whiskers(R"( return Whiskers(R"(
function <functionName>(value) -> ret { function <functionName>(value) -> ret {
value := <cleanupFunction>(sub(0, value))) ret := <cleanupFunction>(sub(0, value))
} }
)") )")
("functionName", functionName) ("functionName", functionName)

2
test/libsolidity/semanticTests/various/flipping_sign_tests.sol
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@ -6,5 +6,7 @@ contract test {
} }
} }
// ====
// compileViaYul: also
// ---- // ----
// f() -> true // f() -> true