From: Jakob Stoklund Olesen <stoklund@2pi.dk>
Date: Wed, 30 Mar 2011 18:32:53 +0000 (+0000)
Subject: Don't add the same analysis implementation pair twice.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=b516e00b43b90a7c231bfc8d91c27e860e1b40ea;p=oota-llvm.git

Don't add the same analysis implementation pair twice.

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
---

diff --git a/include/llvm/PassAnalysisSupport.h b/include/llvm/PassAnalysisSupport.h
index a3342d51386..fede1216c3c 100644
--- a/include/llvm/PassAnalysisSupport.h
+++ b/include/llvm/PassAnalysisSupport.h
@@ -142,6 +142,8 @@ public:
   Pass *findImplPass(Pass *P, AnalysisID PI, Function &F);
 
   void addAnalysisImplsPair(AnalysisID PI, Pass *P) {
+    if (findImplPass(PI) == P)
+      return;
     std::pair<AnalysisID, Pass*> pir = std::make_pair(PI,P);
     AnalysisImpls.push_back(pir);
   }