VLIW specific scheduler framework that utilizes deterministic finite automaton (DFA).

This new scheduler plugs into the existing selection DAG scheduling framework. It is a top-down critical path scheduler that tracks register pressure and uses a DFA for pipeline modeling.

Patch by Sergei Larin!

llvm-svn: 149547

1 files changed, 2 insertions, 0 deletions

diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index f84656ce333..21782db9176 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -225,6 +225,8 @@ namespace llvm {
       return createBURRListDAGScheduler(IS, OptLevel);
     if (TLI.getSchedulingPreference() == Sched::Hybrid)
       return createHybridListDAGScheduler(IS, OptLevel);
+    if (TLI.getSchedulingPreference() == Sched::VLIW)
+      return createVLIWDAGScheduler(IS, OptLevel);
     assert(TLI.getSchedulingPreference() == Sched::ILP &&
            "Unknown sched type!");
     return createILPListDAGScheduler(IS, OptLevel);