From d2e985fd323c167e20f77b045a1d99ad166e65db Mon Sep 17 00:00:00 2001
From: rdivacky <rdivacky@FreeBSD.org>
Date: Wed, 18 Nov 2009 14:58:34 +0000
Subject: Update LLVM to r89205.

---
 lib/Transforms/Scalar/LoopIndexSplit.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'lib/Transforms/Scalar/LoopIndexSplit.cpp')

diff --git a/lib/Transforms/Scalar/LoopIndexSplit.cpp b/lib/Transforms/Scalar/LoopIndexSplit.cpp
index 920d85c..8b6a233 100644
--- a/lib/Transforms/Scalar/LoopIndexSplit.cpp
+++ b/lib/Transforms/Scalar/LoopIndexSplit.cpp
@@ -209,6 +209,10 @@ bool LoopIndexSplit::runOnLoop(Loop *IncomingLoop, LPPassManager &LPM_Ref) {
   L = IncomingLoop;
   LPM = &LPM_Ref;
 
+  // If LoopSimplify form is not available, stay out of trouble.
+  if (!L->isLoopSimplifyForm())
+    return false;
+
   // FIXME - Nested loops make dominator info updates tricky. 
   if (!L->getSubLoops().empty())
     return false;
-- 
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