From d23e0f81bc76902052e9198cad3a0d87a412a632 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Thu, 13 Nov 2008 23:24:17 +0000
Subject: Remove the FlaggedNodes member from SUnit. Instead of requiring each
 SUnit to carry a SmallVector of flagged nodes, just calculate the flagged
 nodes dynamically when they are needed.

The local-liveness change is due to a trivial scheduling change where
the scheduler arbitrary decision differently.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59273 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

(limited to 'lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp')

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp
index 1f45729462..a356b6d471 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp
@@ -433,16 +433,19 @@ std::string DOTGraphTraits<ScheduleDAG*>::getNodeLabel(const SUnit *SU,
                                                        const ScheduleDAG *G) {
   std::string Op;
 
-  for (unsigned i = 0; i < SU->FlaggedNodes.size(); ++i) {
-    Op += DOTGraphTraits<SelectionDAG*>::getNodeLabel(SU->FlaggedNodes[i],
-                                                      G->DAG) + "\n";
+  if (!SU->getNode())
+    Op = "<CROSS RC COPY>";
+  else {
+    SmallVector<SDNode *, 4> FlaggedNodes;
+    for (SDNode *N = SU->getNode(); N; N = N->getFlaggedNode())
+      FlaggedNodes.push_back(N);
+    while (!FlaggedNodes.empty()) {
+      Op += DOTGraphTraits<SelectionDAG*>::getNodeLabel(FlaggedNodes.back(),
+                                                        G->DAG) + "\n";
+      FlaggedNodes.pop_back();
+    }
   }
 
-  if (SU->getNode())
-    Op += DOTGraphTraits<SelectionDAG*>::getNodeLabel(SU->getNode(), G->DAG);
-  else
-    Op += "<CROSS RC COPY>";
-
   return Op;
 }
 
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