From 92c36965246d47ac7f636750e6f19ad2f24b8d2b Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Fri, 18 Dec 2009 00:06:20 +0000
Subject: Reapply LoopStrengthReduce and IVUsers cleanups, excluding the part
 of 91296 that caused trouble -- the Processed list needs to be preserved for
 the livetime of the pass, as AddUsersIfInteresting is called from other
 passes.

llvm-svn: 91641
---
 llvm/lib/Analysis/IVUsers.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'llvm/lib/Analysis/IVUsers.cpp')

diff --git a/llvm/lib/Analysis/IVUsers.cpp b/llvm/lib/Analysis/IVUsers.cpp
index 37747b65174..c697df93688 100644
--- a/llvm/lib/Analysis/IVUsers.cpp
+++ b/llvm/lib/Analysis/IVUsers.cpp
@@ -53,7 +53,7 @@ static bool containsAddRecFromDifferentLoop(const SCEV *S, Loop *L) {
       if (newLoop == L)
         return false;
       // if newLoop is an outer loop of L, this is OK.
-      if (!LoopInfo::isNotAlreadyContainedIn(L, newLoop))
+      if (newLoop->contains(L->getHeader()))
         return false;
     }
     return true;
@@ -370,6 +370,7 @@ void IVUsers::releaseMemory() {
   IVUsesByStride.clear();
   StrideOrder.clear();
   Processed.clear();
+  IVUses.clear();
 }
 
 void IVStrideUse::deleted() {
-- 
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