From: Reid Spencer <rspencer@reidspencer.com>
Date: Sat, 14 Apr 2007 00:00:10 +0000 (+0000)
Subject: We want the number of bits needed, not the power of 2.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=0468ab302537912264f61066fe8b780e52c7f5ef;p=oota-llvm.git

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
---

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 {