From 0468ab302537912264f61066fe8b780e52c7f5ef Mon Sep 17 00:00:00 2001
From: Reid Spencer <rspencer@reidspencer.com>
Date: Sat, 14 Apr 2007 00:00:10 +0000
Subject: [PATCH] We want the number of bits needed, not the power of 2.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35977 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 a35b116b42e..d7933fc5a38 100644
--- a/lib/Support/APInt.cpp
+++ b/lib/Support/APInt.cpp
@@ -693,7 +693,7 @@ uint32_t APInt::getBitsNeeded(const char* str, uint32_t slen, uint8_t radix) {
   APInt tmp(sufficient, str, slen, radix);
 
   // Compute how many bits are required.
-  return isNegative + tmp.logBase2();
+  return isNegative + tmp.logBase2() + 1;
 }
 
 uint64_t APInt::getHashValue() const {