From a9963c648e1646fe6fc1015a61a05b08a62d0aa8 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Mon, 23 Apr 2012 00:27:54 +0000
Subject: [PATCH] Don't die with an assertion if the Result bitwidth is already
 correct.  This fixes an assert reading "1239123123123123" when the result is
 already 64-bit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155329 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Support/StringRef.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Support/StringRef.cpp b/lib/Support/StringRef.cpp
index 14d314b7697..97af0fff5ee 100644
--- a/lib/Support/StringRef.cpp
+++ b/lib/Support/StringRef.cpp
@@ -391,7 +391,7 @@ bool StringRef::getAsInteger(unsigned Radix, APInt &Result) const {
   unsigned BitWidth = Log2Radix * Str.size();
   if (BitWidth < Result.getBitWidth())
     BitWidth = Result.getBitWidth(); // don't shrink the result
-  else
+  else if (BitWidth > Result.getBitWidth())
     Result = Result.zext(BitWidth);
 
   APInt RadixAP, CharAP; // unused unless !IsPowerOf2Radix