From: Ahmed Charles <ace2001ac@gmail.com>
Date: Fri, 24 Feb 2012 19:06:15 +0000 (+0000)
Subject: Fix undefined behavior.
X-Git-Url: http://plrg.eecs.uci.edu/git/?p=oota-llvm.git;a=commitdiff_plain;h=969b739fb9ff89603a3cb3acc6af0eb561cfa5d4

Fix undefined behavior.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151385 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Support/APInt.cpp b/lib/Support/APInt.cpp
index c580dd3ba3e..0d4e0f9f752 100644
--- a/lib/Support/APInt.cpp
+++ b/lib/Support/APInt.cpp
@@ -1234,7 +1234,7 @@ APInt APInt::lshr(const APInt &shiftAmt) const {
 /// @brief Logical right-shift function.
 APInt APInt::lshr(unsigned shiftAmt) const {
   if (isSingleWord()) {
-    if (shiftAmt == BitWidth)
+    if (shiftAmt >= BitWidth)
       return APInt(BitWidth, 0);
     else
       return APInt(BitWidth, this->VAL >> shiftAmt);