Identify Analysis pass.
Do not run analysis pass again if analysis info is still available.
This fixes PR1441.
llvm-svn: 48476
diff --git a/llvm/lib/Analysis/AliasAnalysisCounter.cpp b/llvm/lib/Analysis/AliasAnalysisCounter.cpp
index 3746253..8b35ea8 100644
--- a/llvm/lib/Analysis/AliasAnalysisCounter.cpp
+++ b/llvm/lib/Analysis/AliasAnalysisCounter.cpp
@@ -72,6 +72,9 @@
}
}
+ /// isAnalysis - Return true if this pass is implementing an analysis pass.
+ virtual bool isAnalysis() const { return true; }
+
bool runOnModule(Module &M) {
this->M = &M;
InitializeAliasAnalysis(this);