From: Nuno Lopes <nunoplopes@sapo.pt>
Date: Mon, 31 Dec 2012 18:01:36 +0000 (+0000)
Subject: revert r171306, since we cannot compare APInts with different bitwidths
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=2e594fa85c809178ce598a9b4c3a3bf5e0e6a14e;p=oota-llvm.git

revert r171306, since we cannot compare APInts with different bitwidths

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171308 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Analysis/MemoryBuiltins.cpp b/lib/Analysis/MemoryBuiltins.cpp
index dd05c298f6e..a565617f21b 100644
--- a/lib/Analysis/MemoryBuiltins.cpp
+++ b/lib/Analysis/MemoryBuiltins.cpp
@@ -562,7 +562,7 @@ SizeOffsetType ObjectSizeOffsetVisitor::visitPHINode(PHINode &PHI) {
 SizeOffsetType ObjectSizeOffsetVisitor::visitSelectInst(SelectInst &I) {
   SizeOffsetType TrueSide  = compute(I.getTrueValue());
   SizeOffsetType FalseSide = compute(I.getFalseValue());
-  if (TrueSide == FalseSide)
+  if (bothKnown(TrueSide) && bothKnown(FalseSide) && TrueSide == FalseSide)
     return TrueSide;
   return unknown();
 }