//===-- WDC65816Subtarget.h - Define Subtarget for the WDC65816 -*- 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 WDC65816 specific subclass of TargetSubtargetInfo.
//
//===----------------------------------------------------------------------===//

#ifndef WDC65816_SUBTARGET_H
#define WDC65816_SUBTARGET_H

#include "llvm/Target/TargetSubtargetInfo.h"
#include <string>

#define GET_SUBTARGETINFO_HEADER
#include "WDC65816GenSubtargetInfo.inc"

namespace llvm {
    class StringRef;
    
    class WDC65816Subtarget : public WDC65816GenSubtargetInfo {
        virtual void anchor();
        
    public:
        WDC65816Subtarget(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);
        
        bool is64Bit() const { return false; }
        std::string getDataLayout() const {
            return std::string("e-p:32:8:8-i8:8:8-i16:8:8-i32:8:8-f32:8:8-f64:8:8-n16:8");
        }
        
#if 0 // WDC_TODO - do I need any of this?
        /// The 64-bit ABI uses biased stack and frame pointers, so the stack frame
        /// of the current function is the area from [%sp+BIAS] to [%fp+BIAS].
        int64_t getStackPointerBias() const {
            return is64Bit() ? 2047 : 0;
        }
        
        /// Given a actual stack size as determined by FrameInfo, this function
        /// returns adjusted framesize which includes space for register window
        /// spills and arguments.
        int getAdjustedFrameSize(int stackSize) const;
#endif
        
    };
    
} // end namespace llvm

#endif