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Don't add the same analysis implementation pair twice.

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Prevent infinite growth of the list.

Patch by José Fonseca!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128568 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2011-03-30 18:32:53 +00:00
parent 03ef449917
commit b516e00b43
1 changed files with 2 additions and 0 deletions
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2
include/llvm/PassAnalysisSupport.h
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@ -142,6 +142,8 @@ public:
Pass *findImplPass(Pass *P, AnalysisID PI, Function &F); Pass *findImplPass(Pass *P, AnalysisID PI, Function &F);
void addAnalysisImplsPair(AnalysisID PI, Pass *P) { void addAnalysisImplsPair(AnalysisID PI, Pass *P) {
if (findImplPass(PI) == P)
return;
std::pair<AnalysisID, Pass*> pir = std::make_pair(PI,P); std::pair<AnalysisID, Pass*> pir = std::make_pair(PI,P);
AnalysisImpls.push_back(pir); AnalysisImpls.push_back(pir);
} }