From: Evan Cheng <evan.cheng@apple.com>
Date: Sat, 23 Feb 2008 02:14:42 +0000 (+0000)
Subject: If remating a machine instr with virtual register operand, make sure the vr is avalia... 
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=298bbe82cb390235f7b8ab4bd550feff909e0c3d;p=oota-llvm.git

If remating a machine instr with virtual register operand, make sure the vr is avaliable at all uses regardless of whether it would be folded.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47526 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp
index f1de4d184ef..a18f36afb7f 100644
--- a/lib/CodeGen/LiveIntervalAnalysis.cpp
+++ b/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -680,8 +680,7 @@ bool LiveIntervals::isReMaterializable(const LiveInterval &li,
         unsigned UseIdx = getInstructionIndex(UseMI);
         if (li.FindLiveRangeContaining(UseIdx)->valno != ValNo)
           continue;
-        if (!canFoldMemoryOperand(UseMI, li.reg) &&
-            !isValNoAvailableAt(ImpLi, MI, UseIdx))
+        if (!isValNoAvailableAt(ImpLi, MI, UseIdx))
           return false;
       }
     }