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, 1 insertions, 1 deletions

diff --git a/llvm/lib/Target/AMDGPU/GCNMinRegStrategy.cpp b/llvm/lib/Target/AMDGPU/GCNMinRegStrategy.cpp
index 192d534bb9c..ec6bcae3355 100644
--- a/llvm/lib/Target/AMDGPU/GCNMinRegStrategy.cpp
+++ b/llvm/lib/Target/AMDGPU/GCNMinRegStrategy.cpp
@@ -258,7 +258,7 @@ GCNMinRegScheduler::schedule(ArrayRef<const SUnit*> TopRoots,
     assert(C);
     RQ.remove(*C);
     auto SU = C->SU;
-    LLVM_DEBUG(dbgs() << "Selected "; SU->dump(&DAG));
+    LLVM_DEBUG(dbgs() << "Selected "; DAG.dumpNode(*SU));
 
     releaseSuccessors(SU, StepNo);
     Schedule.push_back(SU);