From: Jakob Stoklund Olesen <stoklund@2pi.dk>
Date: Tue, 2 Aug 2011 23:04:06 +0000 (+0000)
Subject: Inform SpillPlacement about blocks with defs.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=5ebca793db6262386d7464d03cdaefeb5b640ad3;p=oota-llvm.git

Inform SpillPlacement about blocks with defs.

This information is not used for anything yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136741 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/RegAllocGreedy.cpp b/lib/CodeGen/RegAllocGreedy.cpp
index c88bb536fde..6f4eb5baab4 100644
--- a/lib/CodeGen/RegAllocGreedy.cpp
+++ b/lib/CodeGen/RegAllocGreedy.cpp
@@ -676,6 +676,7 @@ bool RAGreedy::addSplitConstraints(InterferenceCache::Cursor Intf,
     Intf.moveToBlock(BC.Number);
     BC.Entry = BI.LiveIn ? SpillPlacement::PrefReg : SpillPlacement::DontCare;
     BC.Exit = BI.LiveOut ? SpillPlacement::PrefReg : SpillPlacement::DontCare;
+    BC.ChangesValue = BI.FirstDef;
 
     if (!Intf.hasInterference())
       continue;