From d82e511aec0ea27ddd4c1e504b37f689796e965f Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Mon, 2 Jun 2008 18:39:07 +0000
Subject: [PATCH] Remove unneeded code I added.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51878 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Analysis/ValueTracking.cpp | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/lib/Analysis/ValueTracking.cpp b/lib/Analysis/ValueTracking.cpp
index 2fe60907fb7..67e4aad4fd5 100644
--- a/lib/Analysis/ValueTracking.cpp
+++ b/lib/Analysis/ValueTracking.cpp
@@ -565,12 +565,9 @@ unsigned llvm::ComputeNumSignBits(Value *V, TargetData *TD, unsigned Depth) {
   unsigned Tmp, Tmp2;
   unsigned FirstAnswer = 1;
 
-  if (ConstantInt *CI = dyn_cast<ConstantInt>(V)) {
-    if (CI->getValue().isNegative())
-      return CI->getValue().countLeadingOnes();
-    return CI->getValue().countLeadingZeros();
-  }
-  
+  // Note that ConstantInt is handled by the general ComputeMaskedBits case
+  // below.
+
   if (Depth == 6)
     return 1;  // Limit search depth.