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Added a variant of InlineCostAnalyzer::getInlineCost() that takes the called function as an explicit argument, for use when inlining function pointers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102841 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -176,6 +176,14 @@ namespace llvm {
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///
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InlineCost getInlineCost(CallSite CS,
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SmallPtrSet<const Function *, 16> &NeverInline);
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/// getCalledFunction - The heuristic used to determine if we should inline
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/// the function call or not. The callee is explicitly specified, to allow
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/// you to calculate the cost of inlining a function via a pointer. The
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/// result assumes that the inlined version will always be used. You should
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/// weight it yourself in cases where this callee will not always be called.
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InlineCost getInlineCost(CallSite CS,
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Function *Callee,
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SmallPtrSet<const Function *, 16> &NeverInline);
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/// getInlineFudgeFactor - Return a > 1.0 factor if the inliner should use a
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/// higher threshold to determine if the function call should be inlined.
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@ -259,9 +259,15 @@ void InlineCostAnalyzer::FunctionInfo::analyzeFunction(Function *F) {
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//
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InlineCost InlineCostAnalyzer::getInlineCost(CallSite CS,
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SmallPtrSet<const Function*, 16> &NeverInline) {
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return getInlineCost(CS, CS.getCalledFunction(), NeverInline);
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}
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InlineCost InlineCostAnalyzer::getInlineCost(CallSite CS,
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Function *Callee,
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SmallPtrSet<const Function*, 16> &NeverInline) {
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Instruction *TheCall = CS.getInstruction();
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Function *Callee = CS.getCalledFunction();
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Function *Caller = TheCall->getParent()->getParent();
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bool isDirectCall = CS.getCalledFunction() == Callee;
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// Don't inline functions which can be redefined at link-time to mean
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// something else. Don't inline functions marked noinline or call sites
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@ -276,11 +282,11 @@ InlineCost InlineCostAnalyzer::getInlineCost(CallSite CS,
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// be inlined. This value may go negative.
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//
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int InlineCost = 0;
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// If there is only one call of the function, and it has internal linkage,
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// make it almost guaranteed to be inlined.
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//
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if (Callee->hasLocalLinkage() && Callee->hasOneUse())
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if (Callee->hasLocalLinkage() && Callee->hasOneUse() && isDirectCall)
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InlineCost += InlineConstants::LastCallToStaticBonus;
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// If this function uses the coldcc calling convention, prefer not to inline
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