From 3bb0fcc11874c1627453f6b1ce3c27b5ad265028 Mon Sep 17 00:00:00 2001
From: Matthias Braun <matze@braunis.de>
Date: Wed, 6 Apr 2016 02:46:04 +0000
Subject: [PATCH] LivePhysRegs: Remove redundant check

llvm-svn: 265509
---
 llvm/lib/CodeGen/LivePhysRegs.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/llvm/lib/CodeGen/LivePhysRegs.cpp b/llvm/lib/CodeGen/LivePhysRegs.cpp
index be8c02c..6cb3ee1 100644
--- a/llvm/lib/CodeGen/LivePhysRegs.cpp
+++ b/llvm/lib/CodeGen/LivePhysRegs.cpp
@@ -57,7 +57,7 @@ void LivePhysRegs::stepBackward(const MachineInstr &MI) {
 
   // Add uses to the set.
   for (ConstMIBundleOperands O(MI); O.isValid(); ++O) {
-    if (!O->isReg() || !O->readsReg() || O->isUndef())
+    if (!O->isReg() || !O->readsReg())
       continue;
     unsigned Reg = O->getReg();
     if (Reg == 0)
-- 
2.7.4