Hoist the HazardRecognizer out of the ScheduleDAGList.cpp file to where

targets can implement them.  Make the top-down scheduler non-g5-specific.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26568 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 5 insertions, 0 deletions

diff --git a/include/llvm/CodeGen/SelectionDAGISel.h b/include/llvm/CodeGen/SelectionDAGISel.h
index 805699390d..ffaa1c6a35 100644
--- a/include/llvm/CodeGen/SelectionDAGISel.h
+++ b/include/llvm/CodeGen/SelectionDAGISel.h
@@ -28,6 +28,7 @@ namespace llvm {
   class MachineInstr;
   class TargetLowering;
   class FunctionLoweringInfo;
+  class HazardRecognizer;
 
 /// SelectionDAGISel - This is the common base class used for SelectionDAG-based
 /// pattern-matching instruction selectors.
@@ -61,6 +62,10 @@ public:
     return true;
   }
   
+  /// GetTargetHazardRecognizer - Return the hazard recognizer to use for this
+  /// target when scheduling the DAG.
+  virtual HazardRecognizer &GetTargetHazardRecognizer();
+  
 protected:
   /// Pick a safe ordering and emit instructions for each target node in the
   /// graph.