diff options
Diffstat (limited to 'include/llvm/Analysis/InlineCost.h')
-rw-r--r-- | include/llvm/Analysis/InlineCost.h | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/include/llvm/Analysis/InlineCost.h b/include/llvm/Analysis/InlineCost.h index 462bddd..ccec4c5 100644 --- a/include/llvm/Analysis/InlineCost.h +++ b/include/llvm/Analysis/InlineCost.h @@ -96,9 +96,11 @@ namespace llvm { public: unsigned ConstantWeight; unsigned AllocaWeight; + unsigned ConstantBonus; - ArgInfo(unsigned CWeight, unsigned AWeight) - : ConstantWeight(CWeight), AllocaWeight(AWeight) {} + ArgInfo(unsigned CWeight, unsigned AWeight, unsigned CBonus) + : ConstantWeight(CWeight), AllocaWeight(AWeight), ConstantBonus(CBonus) + {} }; struct FunctionInfo { @@ -110,16 +112,7 @@ namespace llvm { /// entry here. std::vector<ArgInfo> ArgumentWeights; - /// CountCodeReductionForConstant - Figure out an approximation for how - /// many instructions will be constant folded if the specified value is - /// constant. - unsigned CountCodeReductionForConstant(Value *V); - /// CountCodeReductionForAlloca - Figure out an approximation of how much - /// smaller the function will be if it is inlined into a context where an - /// argument becomes an alloca. - /// - unsigned CountCodeReductionForAlloca(Value *V); /// analyzeFunction - Add information about the specified function /// to the current structure. @@ -150,6 +143,18 @@ namespace llvm { Function *Callee, SmallPtrSet<const Function *, 16> &NeverInline); + /// getSpecializationBonus - The heuristic used to determine the per-call + /// performance boost for using a specialization of Callee with argument + /// SpecializedArgNos replaced by a constant. + int getSpecializationBonus(Function *Callee, + SmallVectorImpl<unsigned> &SpecializedArgNo); + + /// getSpecializationCost - The heuristic used to determine the code-size + /// impact of creating a specialized version of Callee with argument + /// SpecializedArgNo replaced by a constant. + InlineCost getSpecializationCost(Function *Callee, + SmallVectorImpl<unsigned> &SpecializedArgNo); + /// getInlineFudgeFactor - Return a > 1.0 factor if the inliner should use a /// higher threshold to determine if the function call should be inlined. float getInlineFudgeFactor(CallSite CS); |