From 25544b1bcef0205c2c551440fa58f7532bf7901c Mon Sep 17 00:00:00 2001
From: Craig Topper <craig.topper@gmail.com>
Date: Thu, 23 Jul 2015 07:33:48 +0000
Subject: [PATCH] [ScalarEvolution] Change addRequired to addRequiredTransitive
 on two passes where ScalarEvolution stores long lived raw pointers to objects
 those passes own.

This prevents the pointers from dangling when those passes are freed.

http://reviews.llvm.org/D11236
Patch by Steve King.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242989 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Analysis/ScalarEvolution.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp
index 459f1cc82b7..85555a0ca50 100644
--- a/lib/Analysis/ScalarEvolution.cpp
+++ b/lib/Analysis/ScalarEvolution.cpp
@@ -8107,10 +8107,10 @@ void ScalarEvolution::releaseMemory() {
 
 void ScalarEvolution::getAnalysisUsage(AnalysisUsage &AU) const {
   AU.setPreservesAll();
-  AU.addRequired<AssumptionCacheTracker>();
+  AU.addRequiredTransitive<AssumptionCacheTracker>();
   AU.addRequiredTransitive<LoopInfoWrapperPass>();
   AU.addRequiredTransitive<DominatorTreeWrapperPass>();
-  AU.addRequired<TargetLibraryInfoWrapperPass>();
+  AU.addRequiredTransitive<TargetLibraryInfoWrapperPass>();
 }
 
 bool ScalarEvolution::hasLoopInvariantBackedgeTakenCount(const Loop *L) {
-- 
2.11.0