ScheduleDAG: Cleanup dumping code; NFC

- Instead of having both `SUnit::dump(ScheduleDAG*)` and
  `ScheduleDAG::dumpNode(ScheduleDAG*)`, just keep the latter around.
- Add `ScheduleDAG::dump()` and avoid code duplication in several
  places. Implement it for different ScheduleDAG variants.
- Add `ScheduleDAG::dumpNodeName()` in favor of the `SUnit::print()`
  functions. They were only ever used for debug dumping and putting the
  function into ScheduleDAG is consistent with the `dumpNode()` change.

llvm-svn: 342520

1 files changed, 2 insertions, 3 deletions

diff --git a/llvm/lib/Target/PowerPC/PPCHazardRecognizers.cpp b/llvm/lib/Target/PowerPC/PPCHazardRecognizers.cpp
index 793a4dd7f62..cf3547f3cfb 100644
--- a/llvm/lib/Target/PowerPC/PPCHazardRecognizers.cpp
+++ b/llvm/lib/Target/PowerPC/PPCHazardRecognizers.cpp
@@ -180,9 +180,8 @@ void PPCDispatchGroupSBHazardRecognizer::EmitInstruction(SUnit *SU) {
       CurGroup.clear();
       CurSlots = CurBranches = 0;
     } else {
-      LLVM_DEBUG(dbgs() << "**** Adding to dispatch group: SU(" << SU->NodeNum
-                        << "): ");
-      LLVM_DEBUG(DAG->dumpNode(SU));
+      LLVM_DEBUG(dbgs() << "**** Adding to dispatch group: ");
+      LLVM_DEBUG(DAG->dumpNode(*SU));
 
       unsigned NSlots;
       bool MustBeFirst = mustComeFirst(MCID, NSlots);