From 3a5d409f3c2eccf1d1f0a4616023760829a4db67 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Fri, 18 Dec 2009 03:57:04 +0000
Subject: [PATCH] Revert this use of NSW; this one isn't actually safe. NSW
 addition is not reassociative.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91667 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Analysis/ScalarEvolution.cpp | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp
index 75572a7ba20..3c937e05cc5 100644
--- a/lib/Analysis/ScalarEvolution.cpp
+++ b/lib/Analysis/ScalarEvolution.cpp
@@ -1457,12 +1457,10 @@ const SCEV *ScalarEvolution::getAddExpr(SmallVectorImpl<const SCEV *> &Ops,
       LIOps.push_back(AddRec->getStart());
 
       SmallVector<const SCEV *, 4> AddRecOps(AddRec->op_begin(),
-                                           AddRec->op_end());
+                                             AddRec->op_end());
       AddRecOps[0] = getAddExpr(LIOps);
 
-      const SCEV *NewRec = getAddRecExpr(AddRecOps, AddRec->getLoop(),
-                                         AddRec->hasNoUnsignedWrap() && HasNUW,
-                                         AddRec->hasNoSignedWrap() && HasNSW);
+      const SCEV *NewRec = getAddRecExpr(AddRecOps, AddRec->getLoop());
       // If all of the other operands were loop invariant, we are done.
       if (Ops.size() == 1) return NewRec;