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Allow a pass to obtain an analysis result for updating.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2221 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -101,6 +101,19 @@ protected:
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return *(AnalysisType*)Resolver->getAnalysis(AID);
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}
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// getAnalysisToUpdate<AnalysisType>() - This function is used by subclasses
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// to get to the analysis information that might be around that needs to be
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// updated. This is different than getAnalysis in that it can fail (ie the
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// analysis results haven't been computed), so should only be used if you
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// provide the capability to update an analysis that exists.
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//
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template<typename AnalysisType>
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AnalysisType *getAnalysisToUpdate(AnalysisID AID = AnalysisType::ID) {
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assert(Resolver && "Pass not resident in a PassManager object!");
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return (AnalysisType*)Resolver->getAnalysisToUpdate(AID);
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}
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private:
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friend class PassManagerT<Module>;
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friend class PassManagerT<Function>;
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@ -249,6 +262,13 @@ struct AnalysisResolver {
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assert(Result && "Pass has an incorrect analysis uses set!");
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return Result;
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}
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// getAnalysisToUpdate - Return an analysis result or null if it doesn't exist
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Pass *getAnalysisToUpdate(AnalysisID ID) {
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Pass *Result = getAnalysisOrNullUp(ID);
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return Result;
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}
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virtual unsigned getDepth() const = 0;
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virtual void markPassUsed(AnalysisID P, Pass *User) = 0;
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