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