75 lines
2.2 KiB
C
75 lines
2.2 KiB
C
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//===-- HexagonSubtarget.h - Define Subtarget for the Hexagon ---*- 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 Hexagon specific subclass of TargetSubtarget.
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//
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//===----------------------------------------------------------------------===//
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#ifndef Hexagon_SUBTARGET_H
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#define Hexagon_SUBTARGET_H
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#include "llvm/Target/TargetSubtargetInfo.h"
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#include "llvm/Target/TargetMachine.h"
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#include <string>
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#define GET_SUBTARGETINFO_HEADER
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#include "HexagonGenSubtargetInfo.inc"
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#define Hexagon_SMALL_DATA_THRESHOLD 8
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namespace llvm {
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class HexagonSubtarget : public HexagonGenSubtargetInfo {
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bool UseMemOps;
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public:
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enum HexagonArchEnum {
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V1, V2, V3, V4
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};
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HexagonArchEnum HexagonArchVersion;
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std::string CPUString;
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InstrItineraryData InstrItins;
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public:
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HexagonSubtarget(StringRef TT, StringRef CPU, StringRef FS);
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/// getInstrItins - Return the instruction itineraies based on subtarget
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/// selection.
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const InstrItineraryData &getInstrItineraryData() const { return InstrItins; }
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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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bool hasV2TOps () const { return HexagonArchVersion >= V2; }
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bool hasV2TOpsOnly () const { return HexagonArchVersion == V2; }
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bool hasV3TOps () const { return HexagonArchVersion >= V3; }
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bool hasV3TOpsOnly () const { return HexagonArchVersion == V3; }
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bool hasV4TOps () const { return HexagonArchVersion >= V4; }
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bool useMemOps () const { return HexagonArchVersion >= V4 && UseMemOps; }
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bool isSubtargetV2() const { return HexagonArchVersion == V2;}
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const std::string &getCPUString () const { return CPUString; }
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// Threshold for small data section
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unsigned getSmallDataThreshold() const {
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return Hexagon_SMALL_DATA_THRESHOLD;
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}
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const HexagonArchEnum &getHexagonArchVersion() const {
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return HexagonArchVersion;
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}
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};
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} // end namespace llvm
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#endif
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