[llvm-commits] [llvm] r164094 - in /llvm/trunk: include/llvm/Target/TargetSubtargetInfo.h utils/TableGen/SubtargetEmitter.cpp

[Andrew Trick]

Author: atrick
Date: Mon Sep 17 22:32:57 2012
New Revision: 164094

URL: http://llvm.org/viewvc/llvm-project?rev=164094&view=rev
Log:
TableGen subtarget emitter. Remove unnecessary header dependence.

Modified:
    llvm/trunk/include/llvm/Target/TargetSubtargetInfo.h
    llvm/trunk/utils/TableGen/SubtargetEmitter.cpp

Modified: llvm/trunk/include/llvm/Target/TargetSubtargetInfo.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Target/TargetSubtargetInfo.h?rev=164094&r1=164093&r2=164094&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Target/TargetSubtargetInfo.h (original)
+++ llvm/trunk/include/llvm/Target/TargetSubtargetInfo.h Mon Sep 17 22:32:57 2012
@@ -14,15 +14,16 @@
 #ifndef LLVM_TARGET_TARGETSUBTARGETINFO_H
 #define LLVM_TARGET_TARGETSUBTARGETINFO_H
 
-#include "llvm/CodeGen/TargetSchedule.h"
 #include "llvm/MC/MCSubtargetInfo.h"
 #include "llvm/Support/CodeGen.h"
 
 namespace llvm {
 
+class MachineInstr;
 class SDep;
 class SUnit;
 class TargetRegisterClass;
+class TargetSchedModel;
 template <typename T> class SmallVectorImpl;
 
 //===----------------------------------------------------------------------===//
@@ -44,13 +45,13 @@
 
   virtual ~TargetSubtargetInfo();
 
-  /// Initialize a copy of the scheduling model for this subtarget.
-  /// TargetSchedModel provides the interface for the subtarget's
-  /// instruction scheduling information.
-  void initSchedModel(TargetSchedModel &SchedModel,
-                      const TargetInstrInfo *TII) const {
-    // getSchedModel returns the static MCSchedModel initialized by InitMCSubtargetInfo.
-    SchedModel.init(*getSchedModel(), this, TII);
+  /// Resolve a SchedClass at runtime, where SchedClass identifies an
+  /// MCSchedClassDesc with the isVariant property. This may return the ID of
+  /// another variant SchedClass, but repeated invocation must quickly terminate
+  /// in a nonvariant SchedClass.
+  virtual unsigned resolveSchedClass(unsigned SchedClass, const MachineInstr *MI,
+                                     const TargetSchedModel* SchedModel) const {
+    return 0;
   }
 
   /// getSpecialAddressLatency - For targets where it is beneficial to

Modified: llvm/trunk/utils/TableGen/SubtargetEmitter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/utils/TableGen/SubtargetEmitter.cpp?rev=164094&r1=164093&r2=164094&view=diff
==============================================================================
--- llvm/trunk/utils/TableGen/SubtargetEmitter.cpp (original)
+++ llvm/trunk/utils/TableGen/SubtargetEmitter.cpp Mon Sep 17 22:32:57 2012
@@ -1248,6 +1248,7 @@
   OS << "\n#ifdef GET_SUBTARGETINFO_CTOR\n";
   OS << "#undef GET_SUBTARGETINFO_CTOR\n";
 
+  OS << "#include \"llvm/CodeGen/TargetSchedule.h\"\n";
   OS << "namespace llvm {\n";
   OS << "extern const llvm::SubtargetFeatureKV " << Target << "FeatureKV[];\n";
   OS << "extern const llvm::SubtargetFeatureKV " << Target << "SubTypeKV[];\n";