From 2439e513880af4026f5a2723c9c44b9ae6092615 Mon Sep 17 00:00:00 2001
From: Evan Cheng <evan.cheng@apple.com>
Date: Mon, 25 Oct 2010 23:56:21 +0000
Subject: [PATCH] Neuter r117193 as it causes significant post-ra scheduler
 compile time regression.

llvm-svn: 117329
---
 lib/CodeGen/ScheduleDAGInstrs.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/CodeGen/ScheduleDAGInstrs.cpp b/lib/CodeGen/ScheduleDAGInstrs.cpp
index 6b1a59b5ea8..9b5d13b1200 100644
--- a/lib/CodeGen/ScheduleDAGInstrs.cpp
+++ b/lib/CodeGen/ScheduleDAGInstrs.cpp
@@ -169,8 +169,8 @@ void ScheduleDAGInstrs::AddSchedBarrierDeps() {
   } else {
     // For others, e.g. fallthrough, conditional branch, assume the exit
     // uses all the registers.
-    for (int i = 0, e = TRI->getNumRegs(); i != e; ++i)
-      Uses[i].push_back(&ExitSU);
+    // FIXME: This causes too much compile time regression. We need to compute
+    // liveout instead.
   }
 }