From 721c201bd55ffb73cb2ba8d39e0570fa38c44e15 Mon Sep 17 00:00:00 2001 From: dim Date: Wed, 15 Aug 2012 19:34:23 +0000 Subject: Vendor import of llvm trunk r161861: http://llvm.org/svn/llvm-project/llvm/trunk@161861 --- lib/Transforms/Utils/LoopUnrollRuntime.cpp | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'lib/Transforms/Utils/LoopUnrollRuntime.cpp') diff --git a/lib/Transforms/Utils/LoopUnrollRuntime.cpp b/lib/Transforms/Utils/LoopUnrollRuntime.cpp index 3aa6bef..67e17f4 100644 --- a/lib/Transforms/Utils/LoopUnrollRuntime.cpp +++ b/lib/Transforms/Utils/LoopUnrollRuntime.cpp @@ -131,7 +131,7 @@ static void ConnectProlog(Loop *L, Value *TripCount, unsigned Count, /// There are two value maps that are defined and used. VMap is /// for the values in the current loop instance. LVMap contains /// the values from the last loop instance. We need the LVMap values -/// to update the inital values for the current loop instance. +/// to update the initial values for the current loop instance. /// static void CloneLoopBlocks(Loop *L, bool FirstCopy, @@ -237,6 +237,8 @@ bool llvm::UnrollRuntimeLoopProlog(Loop *L, unsigned Count, LoopInfo *LI, // Use Scalar Evolution to compute the trip count. This allows more // loops to be unrolled than relying on induction var simplification + if (!LPM) + return false; ScalarEvolution *SE = LPM->getAnalysisIfAvailable(); if (SE == 0) return false; -- cgit v1.1