From 907da171cc911d701da02a5cab898a9c49dd7724 Mon Sep 17 00:00:00 2001
From: Roman Divacky <rdivacky@FreeBSD.org>
Date: Wed, 18 Nov 2009 14:58:34 +0000
Subject: Update LLVM to r89205.

---
 lib/Transforms/Scalar/IndVarSimplify.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

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

diff --git a/lib/Transforms/Scalar/IndVarSimplify.cpp b/lib/Transforms/Scalar/IndVarSimplify.cpp
index b0bc70c3f447..2912421e704b 100644
--- a/lib/Transforms/Scalar/IndVarSimplify.cpp
+++ b/lib/Transforms/Scalar/IndVarSimplify.cpp
@@ -536,8 +536,10 @@ void IndVarSimplify::SinkUnusedInvariants(Loop *L) {
   BasicBlock *ExitBlock = L->getExitBlock();
   if (!ExitBlock) return;
 
-  Instruction *InsertPt = ExitBlock->getFirstNonPHI();
   BasicBlock *Preheader = L->getLoopPreheader();
+  if (!Preheader) return;
+
+  Instruction *InsertPt = ExitBlock->getFirstNonPHI();
   BasicBlock::iterator I = Preheader->getTerminator();
   while (I != Preheader->begin()) {
     --I;
-- 
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