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[inline cold threshold] Command line argument for inline threshold will

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override the default cold threshold.

When we use command line argument to set the inline threshold, the default
cold threshold will not be used. This is in line with how we use
OptSizeThreshold. When we want a higher threshold for all functions, we
do not have to set both inline threshold and cold threshold.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207245 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Manman Ren
2014-04-25 17:34:55 +00:00
parent 7d772dda4e
commit 3bd471dee2
2 changed files with 120 additions and 3 deletions
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7
lib/Transforms/IPO/Inliner.cpp
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@@ -290,7 +290,12 @@ unsigned Inliner::getInlineThreshold(CallSite CS) const {
bool ColdCallee = Callee && !Callee->isDeclaration() &&
Callee->getAttributes().hasAttribute(AttributeSet::FunctionIndex,
Attribute::Cold);
if (ColdCallee && ColdThreshold < thres)
// Command line argument for InlineLimit will override the default
// ColdThreshold. If we have -inline-threshold but no -inlinecold-threshold,
// do not use the default cold threshold even if it is smaller.
if ((InlineLimit.getNumOccurrences() == 0 ||
ColdThreshold.getNumOccurrences() > 0) && ColdCallee &&
ColdThreshold < thres)
thres = ColdThreshold;
return thres;