From: Andrew Trick <atrick@apple.com>
Date: Fri, 5 Apr 2013 00:31:31 +0000 (+0000)
Subject: Disable DFSResult for ConvergingScheduler.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=2182977ff2cc8ff1259e3a2c3528651496d818d4;p=oota-llvm.git

Disable DFSResult for ConvergingScheduler.

For now, just save the compile time since the ConvergingScheduler
heuristics don't use this analysis. We'll probably enable it later
after compile-time investigation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178822 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/MachineScheduler.cpp b/lib/CodeGen/MachineScheduler.cpp
index c621ca96bf5..ed6b9861dcf 100644
--- a/lib/CodeGen/MachineScheduler.cpp
+++ b/lib/CodeGen/MachineScheduler.cpp
@@ -1243,8 +1243,6 @@ void ConvergingScheduler::initialize(ScheduleDAGMI *dag) {
   Top.init(DAG, SchedModel, &Rem);
   Bot.init(DAG, SchedModel, &Rem);
 
-  DAG->computeDFSResult();
-
   // Initialize resource counts.
 
   // Initialize the HazardRecognizers. If itineraries don't exist, are empty, or