From: Bill Wendling <isanbard@gmail.com>
Date: Wed, 6 Jan 2010 00:09:23 +0000 (+0000)
Subject: Only check the ordering if there is an ordering for each nodes.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=cfeea4b92aa5be102e58efea947ca40a95b0c999;p=oota-llvm.git

Only check the ordering if there is an ordering for each nodes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92807 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp b/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp
index 1ad7919962b..4d51f0c13e8 100644
--- a/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp
+++ b/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp
@@ -1129,8 +1129,8 @@ bool bu_ls_rr_sort::operator()(const SUnit *left, const SUnit *right) const {
 
   // Prefer an ordering where the lower the non-zero order number, the higher
   // the preference.
-  if ((LOrder || ROrder) && LOrder != ROrder)
-    return LOrder != 0 && (LOrder < ROrder || ROrder == 0);
+  if (LOrder && ROrder && LOrder != ROrder)
+    return LOrder < ROrder;
 
   unsigned LPriority = SPQ->getNodePriority(left);
   unsigned RPriority = SPQ->getNodePriority(right);