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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.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102841 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Chisnall
2010-05-01 15:47:41 +00:00
parent 17458a786e
commit 752e259058
2 changed files with 17 additions and 3 deletions
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12
lib/Analysis/InlineCost.cpp
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@@ -259,9 +259,15 @@ void InlineCostAnalyzer::FunctionInfo::analyzeFunction(Function *F) {
//
InlineCost InlineCostAnalyzer::getInlineCost(CallSite CS,
SmallPtrSet<const Function*, 16> &NeverInline) {
return getInlineCost(CS, CS.getCalledFunction(), NeverInline);
}
InlineCost InlineCostAnalyzer::getInlineCost(CallSite CS,
Function *Callee,
SmallPtrSet<const Function*, 16> &NeverInline) {
Instruction *TheCall = CS.getInstruction();
Function *Callee = CS.getCalledFunction();
Function *Caller = TheCall->getParent()->getParent();
bool isDirectCall = CS.getCalledFunction() == Callee;
// Don't inline functions which can be redefined at link-time to mean
// something else. Don't inline functions marked noinline or call sites
@@ -276,11 +282,11 @@ InlineCost InlineCostAnalyzer::getInlineCost(CallSite CS,
// be inlined. This value may go negative.
//
int InlineCost = 0;
// If there is only one call of the function, and it has internal linkage,
// make it almost guaranteed to be inlined.
//
if (Callee->hasLocalLinkage() && Callee->hasOneUse())
if (Callee->hasLocalLinkage() && Callee->hasOneUse() && isDirectCall)
InlineCost += InlineConstants::LastCallToStaticBonus;
// If this function uses the coldcc calling convention, prefer not to inline