Imported Upstream version 6.0.0.172

Former-commit-id: f3cc9b82f3e5bd8f0fd3ebc098f789556b44e9cd

external/llvm/lib/Target/AVR/AVRSubtarget.h

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+//===-- AVRSubtarget.h - Define Subtarget for the AVR -----------*- 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 AVR specific subclass of TargetSubtargetInfo.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_AVR_SUBTARGET_H
+#define LLVM_AVR_SUBTARGET_H
+
+#include "llvm/CodeGen/TargetSubtargetInfo.h"
+#include "llvm/IR/DataLayout.h"
+#include "llvm/Target/TargetMachine.h"
+
+#include "AVRFrameLowering.h"
+#include "AVRISelLowering.h"
+#include "AVRInstrInfo.h"
+#include "AVRSelectionDAGInfo.h"
+
+#define GET_SUBTARGETINFO_HEADER
+#include "AVRGenSubtargetInfo.inc"
+
+namespace llvm {
+
+/// A specific AVR target MCU.
+class AVRSubtarget : public AVRGenSubtargetInfo {
+public:
+  //! Creates an AVR subtarget.
+  //! \param TT  The target triple.
+  //! \param CPU The CPU to target.
+  //! \param FS  The feature string.
+  //! \param TM  The target machine.
+  AVRSubtarget(const Triple &TT, const std::string &CPU, const std::string &FS,
+               AVRTargetMachine &TM);
+
+  const AVRInstrInfo *getInstrInfo() const override { return &InstrInfo; }
+  const TargetFrameLowering *getFrameLowering() const override { return &FrameLowering; }
+  const AVRTargetLowering *getTargetLowering() const override { return &TLInfo; }
+  const AVRSelectionDAGInfo *getSelectionDAGInfo() const override { return &TSInfo; }
+  const AVRRegisterInfo *getRegisterInfo() const override { return &InstrInfo.getRegisterInfo(); }
+
+  /// Parses a subtarget feature string, setting appropriate options.
+  /// \note Definition of function is auto generated by `tblgen`.
+  void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
+
+  // Subtarget feature getters.
+  // See AVR.td for details.
+  bool hasSRAM() const { return m_hasSRAM; }
+  bool hasJMPCALL() const { return m_hasJMPCALL; }
+  bool hasIJMPCALL() const { return m_hasIJMPCALL; }
+  bool hasEIJMPCALL() const { return m_hasEIJMPCALL; }
+  bool hasADDSUBIW() const { return m_hasADDSUBIW; }
+  bool hasSmallStack() const { return m_hasSmallStack; }
+  bool hasMOVW() const { return m_hasMOVW; }
+  bool hasLPM() const { return m_hasLPM; }
+  bool hasLPMX() const { return m_hasLPMX; }
+  bool hasELPM() const { return m_hasELPM; }
+  bool hasELPMX() const { return m_hasELPMX; }
+  bool hasSPM() const { return m_hasSPM; }
+  bool hasSPMX() const { return m_hasSPMX; }
+  bool hasDES() const { return m_hasDES; }
+  bool supportsRMW() const { return m_supportsRMW; }
+  bool supportsMultiplication() const { return m_supportsMultiplication; }
+  bool hasBREAK() const { return m_hasBREAK; }
+  bool hasTinyEncoding() const { return m_hasTinyEncoding; }
+
+  /// Gets the ELF architecture for the e_flags field
+  /// of an ELF object file.
+  unsigned getELFArch() const {
+    assert(ELFArch != 0 &&
+           "every device must have an associate ELF architecture");
+    return ELFArch;
+  }
+
+private:
+  AVRInstrInfo InstrInfo;
+  AVRFrameLowering FrameLowering;
+  AVRTargetLowering TLInfo;
+  AVRSelectionDAGInfo TSInfo;
+
+  // Subtarget feature settings
+  // See AVR.td for details.
+  bool m_hasSRAM;
+  bool m_hasJMPCALL;
+  bool m_hasIJMPCALL;
+  bool m_hasEIJMPCALL;
+  bool m_hasADDSUBIW;
+  bool m_hasSmallStack;
+  bool m_hasMOVW;
+  bool m_hasLPM;
+  bool m_hasLPMX;
+  bool m_hasELPM;
+  bool m_hasELPMX;
+  bool m_hasSPM;
+  bool m_hasSPMX;
+  bool m_hasDES;
+  bool m_supportsRMW;
+  bool m_supportsMultiplication;
+  bool m_hasBREAK;
+  bool m_hasTinyEncoding;
+
+  /// The ELF e_flags architecture.
+  unsigned ELFArch;
+
+  // Dummy member, used by FeatureSet's. We cannot have a SubtargetFeature with
+  // no variable, so we instead bind pseudo features to this variable.
+  bool m_FeatureSetDummy;
+};
+
+} // end namespace llvm
+
+#endif // LLVM_AVR_SUBTARGET_H