From c93d8373c93159c590838957b3194900caeb8a03 Mon Sep 17 00:00:00 2001
From: David Goodwin <david_goodwin@apple.com>
Date: Tue, 11 Aug 2009 17:35:23 +0000
Subject: [PATCH] Add some debug output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78687 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/PostRASchedulerList.cpp | 16 ++++++++++++++--
 lib/CodeGen/ScheduleDAG.cpp         |  2 ++
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/lib/CodeGen/PostRASchedulerList.cpp b/lib/CodeGen/PostRASchedulerList.cpp
index 4b265cc5597..1606532e47f 100644
--- a/lib/CodeGen/PostRASchedulerList.cpp
+++ b/lib/CodeGen/PostRASchedulerList.cpp
@@ -557,7 +557,7 @@ bool SchedulePostRATDList::BreakAntiDependencies() {
   // isn't A which is free.  This re-introduces anti-dependencies
   // at all but one of the original anti-dependencies that we were
   // trying to break.  To avoid this, keep track of the most recent
-  // register that each register was replaced with, avoid avoid
+  // register that each register was replaced with, avoid
   // using it to repair an anti-dependence on the same register.
   // This lets us produce this:
   //   A = ...
@@ -825,7 +825,19 @@ void SchedulePostRATDList::ListScheduleTopDown() {
       } else if (PendingQueue[i]->getDepth() < MinDepth)
         MinDepth = PendingQueue[i]->getDepth();
     }
-    
+
+#ifndef NDEBUG
+    {
+      errs() << "\n*** Examining Available\n";
+      LatencyPriorityQueue q = AvailableQueue;
+      while (!q.empty()) {
+        SUnit *su = q.pop();
+        errs() << "Height " << su->getHeight() << ": ";
+        su->dump(this);
+      }
+    }
+#endif
+
     SUnit *FoundSUnit = 0;
 
     bool HasNoopHazards = false;
diff --git a/lib/CodeGen/ScheduleDAG.cpp b/lib/CodeGen/ScheduleDAG.cpp
index bc48dc21ab1..a7508b5042d 100644
--- a/lib/CodeGen/ScheduleDAG.cpp
+++ b/lib/CodeGen/ScheduleDAG.cpp
@@ -285,6 +285,7 @@ void SUnit::dumpAll(const ScheduleDAG *G) const {
       errs() << I->getSUnit() << " - SU(" << I->getSUnit()->NodeNum << ")";
       if (I->isArtificial())
         errs() << " *";
+      errs() << ": Latency=" << I->getLatency();
       errs() << "\n";
     }
   }
@@ -303,6 +304,7 @@ void SUnit::dumpAll(const ScheduleDAG *G) const {
       errs() << I->getSUnit() << " - SU(" << I->getSUnit()->NodeNum << ")";
       if (I->isArtificial())
         errs() << " *";
+      errs() << ": Latency=" << I->getLatency();
       errs() << "\n";
     }
   }
-- 
2.34.1