#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;
//===----------------------------------------------------------------------===//
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
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";