From b4a39f7ccd0431121f0b608251ce708555d27cd7 Mon Sep 17 00:00:00 2001
From: Craig Topper <craig.topper@gmail.com>
Date: Mon, 15 May 2017 22:01:03 +0000
Subject: [PATCH] [APInt] Simplify a for loop initialization based on the fact
 that 'n' is known to be 1 by an earlier 'if'.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303120 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Support/APInt.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Support/APInt.cpp b/lib/Support/APInt.cpp
index ed6756f6ef3..17144522db8 100644
--- a/lib/Support/APInt.cpp
+++ b/lib/Support/APInt.cpp
@@ -1476,7 +1476,7 @@ void APInt::divide(const APInt &LHS, unsigned lhsWords, const APInt &RHS,
   if (n == 1) {
     uint32_t divisor = V[0];
     uint32_t remainder = 0;
-    for (int i = m+n-1; i >= 0; i--) {
+    for (int i = m; i >= 0; i--) {
       uint64_t partial_dividend = Make_64(remainder, U[i]);
       if (partial_dividend == 0) {
         Q[i] = 0;