From e51b8ccc6d1d219b8c09eaec2af73a5c0b0438ff Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Fri, 19 Dec 2008 00:46:20 +0000
Subject: [PATCH] Initialize the ImplicitDefed member, to avoid getting stale
 data from a previous block.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61237 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/RegisterScavenging.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/CodeGen/RegisterScavenging.cpp b/lib/CodeGen/RegisterScavenging.cpp
index 5a4bedc2bee..add639a9671 100644
--- a/lib/CodeGen/RegisterScavenging.cpp
+++ b/lib/CodeGen/RegisterScavenging.cpp
@@ -112,6 +112,7 @@ void RegScavenger::enterBasicBlock(MachineBasicBlock *mbb) {
   ScavengeRestore = NULL;
   CurrDist = 0;
   DistanceMap.clear();
+  ImplicitDefed.reset();
 
   // All registers started out unused.
   RegsAvailable.set();
-- 
2.11.0