Revert r164061-r164067. Most of the new subtarget emitter.

I have to work out the Target/CodeGen header dependencies
before putting this back.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164072 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 22 deletions

diff --git a/include/llvm/CodeGen/TargetSchedule.h b/include/llvm/CodeGen/TargetSchedule.h
index d2a26afe99..5023f4906e 100644
--- a/include/llvm/CodeGen/TargetSchedule.h
+++ b/include/llvm/CodeGen/TargetSchedule.h
@@ -45,33 +45,17 @@ public:
   /// Return true if this machine model includes an instruction-level scheduling
   /// model. This is more detailed than the course grain IssueWidth and default
   /// latency properties, but separate from the per-cycle itinerary data.
-  bool hasInstrSchedModel() const { return SchedModel.hasInstrSchedModel(); }
+  bool hasInstrSchedModel() const {
+    return SchedModel.hasInstrSchedModel();
+  }
 
   /// Return true if this machine model includes cycle-to-cycle itinerary
   /// data. This models scheduling at each stage in the processor pipeline.
-  bool hasInstrItineraries() const { return !InstrItins.isEmpty(); }
-
-  /// computeOperandLatency - Compute and return the latency of the given data
-  /// dependent def and use when the operand indices are already known. UseMI
-  /// may be NULL for an unknown user.
-  ///
-  /// FindMin may be set to get the minimum vs. expected latency. Minimum
-  /// latency is used for scheduling groups, while expected latency is for
-  /// instruction cost and critical path.
-  unsigned computeOperandLatency(const MachineInstr *DefMI, unsigned DefOperIdx,
-                                 const MachineInstr *UseMI, unsigned UseOperIdx,
-                                 bool FindMin) const;
+  bool hasInstrItineraries() const {
+    return SchedModel.hasInstrItineraries();
+  }
 
   unsigned getProcessorID() const { return SchedModel.getProcessorID(); }
-
-private:
-  /// getDefLatency is a helper for computeOperandLatency. Return the
-  /// instruction's latency if operand lookup is not required.
-  /// Otherwise return -1.
-  int getDefLatency(const MachineInstr *DefMI, bool FindMin) const;
-
-  /// Return the MCSchedClassDesc for this instruction.
-  const MCSchedClassDesc *resolveSchedClass(const MachineInstr *MI) const;
 };
 
 } // namespace llvm