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//=====-- MBlazeSubtarget.h - Define Subtarget for the MBlaze -*- C++ -*--====//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file declares the MBlaze specific subclass of TargetSubtargetInfo.
//
//===----------------------------------------------------------------------===//
#ifndef MBLAZESUBTARGET_H
#define MBLAZESUBTARGET_H
#include "llvm/Target/TargetSubtargetInfo.h"
#include "llvm/MC/MCInstrItineraries.h"
#include <string>
#define GET_SUBTARGETINFO_HEADER
#include "MBlazeGenSubtargetInfo.inc"
namespace llvm {
class StringRef;
class MBlazeSubtarget : public MBlazeGenSubtargetInfo {
protected:
bool HasBarrel;
bool HasDiv;
bool HasMul;
bool HasPatCmp;
bool HasFPU;
bool HasMul64;
bool HasSqrt;
bool HasItin;
InstrItineraryData InstrItins;
public:
/// This constructor initializes the data members to match that
/// of the specified triple.
MBlazeSubtarget(const std::string &TT, const std::string &CPU,
const std::string &FS);
/// ParseSubtargetFeatures - Parses features string setting specified
/// subtarget options. Definition of function is auto generated by tblgen.
void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
/// Compute the number of maximum number of issues per cycle for the
/// MBlaze scheduling itineraries.
void computeIssueWidth();
/// enablePostRAScheduler - True at 'More' optimization.
bool enablePostRAScheduler(CodeGenOpt::Level OptLevel,
TargetSubtargetInfo::AntiDepBreakMode& Mode,
RegClassVector& CriticalPathRCs) const;
/// getInstrItins - Return the instruction itineraies based on subtarget.
const InstrItineraryData &getInstrItineraryData() const { return InstrItins; }
bool hasItin() const { return HasItin; }
bool hasPCMP() const { return HasPatCmp; }
bool hasFPU() const { return HasFPU; }
bool hasSqrt() const { return HasSqrt; }
bool hasMul() const { return HasMul; }
bool hasMul64() const { return HasMul64; }
bool hasDiv() const { return HasDiv; }
bool hasBarrel() const { return HasBarrel; }
};
} // End llvm namespace
#endif
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