From 73e53f510affd8c5d97876bf8c85d95bcfee077b Mon Sep 17 00:00:00 2001
From: Hongbin Zheng <etherzhhb@gmail.com>
Date: Fri, 16 Mar 2012 08:31:24 +0000
Subject: [PATCH] More AddUsersIfInteresting related fix.

llvm-svn: 152909
---
 polly/lib/IndVarSimplify.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/polly/lib/IndVarSimplify.cpp b/polly/lib/IndVarSimplify.cpp
index a9d15cd32197..4f19e2da1a22 100644
--- a/polly/lib/IndVarSimplify.cpp
+++ b/polly/lib/IndVarSimplify.cpp
@@ -1967,8 +1967,11 @@ bool IndVarSimplify::runOnLoop(Loop *L, LPPassManager &LPM) {
   // loop exit test instruction.
   if (IU && NewICmp) {
     ICmpInst *NewICmpInst = dyn_cast<ICmpInst>(NewICmp);
-    if (NewICmpInst)
-      IU->AddUsersIfInteresting(cast<Instruction>(NewICmpInst->getOperand(0)));
+    if (NewICmpInst) {
+      SmallPtrSet<Loop*,16> SimpleLoopNests;
+      IU->AddUsersIfInteresting(cast<Instruction>(NewICmpInst->getOperand(0)),
+                                SimpleLoopNests);
+    }
   }
   // Clean up dead instructions.
   Changed |= DeleteDeadPHIs(L->getHeader());