From 5bb307d5c8b58f5809482db25b344d9a6b2a5663 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Sat, 28 Aug 2010 00:39:27 +0000
Subject: [PATCH] Fix an index calculation thinko.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112337 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Analysis/ScalarEvolution.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp
index 9afa0bd02b5..9bc3aa93539 100644
--- a/lib/Analysis/ScalarEvolution.cpp
+++ b/lib/Analysis/ScalarEvolution.cpp
@@ -1430,7 +1430,7 @@ const SCEV *ScalarEvolution::getAddExpr(SmallVectorImpl<const SCEV *> &Ops,
         return Mul;
       Ops[i] = Mul;
       Ops.erase(Ops.begin()+i+1, Ops.begin()+i+Count);
-      i -= Count - 1; e -= Count - 1;
+      --i; e -= Count - 1;
       FoundMatch = true;
     }
   if (FoundMatch)