int DefaultThreshold;
/// Threshold to use for callees with inline hint.
- int HintThreshold;
+ Optional<int> HintThreshold;
/// Threshold to use for cold callees.
Optional<int> ColdThreshold;
Optional<int> OptMinSizeThreshold;
/// Threshold to use when the callsite is considered hot.
- int HotCallSiteThreshold;
+ Optional<int> HotCallSiteThreshold;
};
/// Generate the parameters to tune the inline cost analysis based only on the
return B ? std::min(A, B.getValue()) : A;
};
+ // return max(A, B) if B is valid.
+ auto MaxIfValid = [](int A, Optional<int> B) {
+ return B ? std::max(A, B.getValue()) : A;
+ };
+
// Use the OptMinSizeThreshold or OptSizeThreshold knob if they are available
// and reduce the threshold if the caller has the necessary attribute.
if (Caller->optForMinSize())
bool InlineHint = Callee.hasFnAttribute(Attribute::InlineHint) ||
PSI->isHotFunction(&Callee);
if (InlineHint && !Caller->optForMinSize())
- Threshold = std::max(Threshold, Params.HintThreshold);
+ Threshold = MaxIfValid(Threshold, Params.HintThreshold);
- if (HotCallsite && HotCallSiteThreshold > Threshold &&
- !Caller->optForMinSize())
- Threshold = std::max(Threshold, Params.HotCallSiteThreshold);
+ if (HotCallsite && !Caller->optForMinSize())
+ Threshold = MaxIfValid(Threshold, Params.HotCallSiteThreshold);
bool ColdCallee = PSI->isColdFunction(&Callee);
// For cold callees, use the ColdThreshold knob if it is available and reduces