From: Bob Wilson <bob.wilson@apple.com>
Date: Mon, 25 Jan 2010 21:28:05 +0000 (+0000)
Subject: Remove check for an impossible condition: the condition of the while loop has
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=0988639963747a29fccf1273bbec996b4bac89a8;p=oota-llvm.git

Remove check for an impossible condition: the condition of the while loop has
already checked that TmpBB->getSinglePredecessor() is non-null.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94451 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Transforms/Scalar/GVN.cpp b/lib/Transforms/Scalar/GVN.cpp
index b29fe74b1ec..292a4b311dd 100644
--- a/lib/Transforms/Scalar/GVN.cpp
+++ b/lib/Transforms/Scalar/GVN.cpp
@@ -1522,8 +1522,6 @@ bool GVN::processNonLocalLoad(LoadInst *LI,
   while (TmpBB->getSinglePredecessor()) {
     isSinglePred = true;
     TmpBB = TmpBB->getSinglePredecessor();
-    if (!TmpBB) // If haven't found any, bail now.
-      return false;
     if (TmpBB == LoadBB) // Infinite (unreachable) loop.
       return false;
     if (Blockers.count(TmpBB))