From 24e20583d151fccc4773b5d7f87553bba9bf3bf9 Mon Sep 17 00:00:00 2001
From: Mehdi Amini <mehdi.amini@apple.com>
Date: Mon, 21 Sep 2015 21:29:43 +0000
Subject: Fix UB: can't bind a reference to nullptr (NFC)

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 248213
---
 llvm/lib/Transforms/Scalar/LoopUnswitch.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'llvm/lib/Transforms/Scalar/LoopUnswitch.cpp')

diff --git a/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp b/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp
index 8aa3c88..a00603b 100644
--- a/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp
@@ -419,7 +419,7 @@ bool LoopUnswitch::runOnLoop(Loop *L, LPPassManager &LPM_Ref) {
   Function *F = currentLoop->getHeader()->getParent();
   bool Changed = false;
   do {
-    assert(currentLoop->isLCSSAForm(*DT));
+    assert(!DT || currentLoop->isLCSSAForm(*DT));
     redoLoop = false;
     Changed |= processCurrentLoop();
   } while(redoLoop);
-- 
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