From 2b4fa68564c792a120f73ccf659f190fa9caae2c Mon Sep 17 00:00:00 2001
From: Devang Patel <dpatel@apple.com>
Date: Tue, 18 Mar 2008 00:39:19 +0000
Subject: Identify Analysis pass. Do not run analysis pass again if analysis
 info is still available. This fixes PR1441.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48476 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Analysis/IPA/GlobalsModRef.cpp | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'lib/Analysis/IPA/GlobalsModRef.cpp')

diff --git a/lib/Analysis/IPA/GlobalsModRef.cpp b/lib/Analysis/IPA/GlobalsModRef.cpp
index 9aafe37..9f0159e 100644
--- a/lib/Analysis/IPA/GlobalsModRef.cpp
+++ b/lib/Analysis/IPA/GlobalsModRef.cpp
@@ -86,6 +86,9 @@ namespace {
     static char ID;
     GlobalsModRef() : ModulePass((intptr_t)&ID) {}
 
+    /// isAnalysis - Return true if this pass is  implementing an analysis pass.
+    virtual bool isAnalysis() const { return true; }
+
     bool runOnModule(Module &M) {
       InitializeAliasAnalysis(this);                 // set up super class
       AnalyzeGlobals(M);                          // find non-addr taken globals
-- 
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