TCEStubSubTarget.hh

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/*
    Copyright (c) 2002-2015 Tampere University.
 
    This file is part of TTA-Based Codesign Environment (TCE).
 
    Permission is hereby granted, free of charge, to any person obtaining a
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    Software is furnished to do so, subject to the following conditions:
 
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/**
 * @file TCEStubSubTarget.hh
 *
 * Declaration of TCEStubSubTarget class.
 *
 * @author Ville Korhonen 2015
 */
 
#ifndef TTA_TCE_STUB_SUBTARGET_HH
#define TTA_TCE_STUB_SUBTARGET_HH
 
#include "TCEStubTargetMachine.hh"
#include <llvm/CodeGen/TargetSubtargetInfo.h>
#include <llvm/CodeGen/TargetLowering.h>
 
/**
 * Minimalistic subtarget implementation to be used in LLVM middle end 
 * optimization phase. 
 *
 * At the moment the purpose is only to offer 
 * default targetLowering which is required by the LLVM.
 * @todo a Proper targetLowering for more accurate targetTransformInfo
 */
 
namespace llvm {
    class TCEStubTargetMachine;
 
    class TCEStubSubTarget : public TargetSubtargetInfo {
        const TargetLowering TLI;
 
    public:
        TCEStubSubTarget(
            const Triple &TT, const StringRef &CPU, 
            const StringRef &FS, const TCEStubTargetMachine &TM);
 
        const TargetLowering *getTargetLowering() const {
            return &TLI;
        }
 
    };
} // end namespace llvm
#endif