From 553e0fe365b4767924b6cbdde77a3e2a2197cdae Mon Sep 17 00:00:00 2001
From: Andrew Trick <atrick@apple.com>
Date: Wed, 13 Feb 2013 19:22:27 +0000
Subject: MIsched: HazardRecognizers are created for each DAG. Free them.

llvm-svn: 175067
---
 llvm/lib/CodeGen/MachineScheduler.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'llvm/lib/CodeGen/MachineScheduler.cpp')

diff --git a/llvm/lib/CodeGen/MachineScheduler.cpp b/llvm/lib/CodeGen/MachineScheduler.cpp
index 513d8a92689..ddaf56627bb 100644
--- a/llvm/lib/CodeGen/MachineScheduler.cpp
+++ b/llvm/lib/CodeGen/MachineScheduler.cpp
@@ -1054,6 +1054,9 @@ public:
 #endif
 
     void reset() {
+      // A new HazardRec is created for each DAG and owned by SchedBoundary.
+      delete HazardRec;
+
       Available.clear();
       Pending.clear();
       CheckPending = false;
@@ -1079,7 +1082,8 @@ public:
     /// PendingFlag set.
     SchedBoundary(unsigned ID, const Twine &Name):
       DAG(0), SchedModel(0), Rem(0), Available(ID, Name+".A"),
-      Pending(ID << ConvergingScheduler::LogMaxQID, Name+".P") {
+      Pending(ID << ConvergingScheduler::LogMaxQID, Name+".P"),
+      HazardRec(0) {
       reset();
     }
 
@@ -1223,6 +1227,7 @@ void ConvergingScheduler::initialize(ScheduleDAGMI *dag) {
   DAG = dag;
   SchedModel = DAG->getSchedModel();
   TRI = DAG->TRI;
+
   Rem.init(DAG, SchedModel);
   Top.init(DAG, SchedModel, &Rem);
   Bot.init(DAG, SchedModel, &Rem);
-- 
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