X86_64MachineMethodDescriptor.hpp

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/* src/vm/jit/compiler2/X86_64MachineMethodDescriptor.hpp - X86_64MachineMethodDescriptor

   Copyright (C) 2013
   CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO

   This file is part of CACAO.

   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License as
   published by the Free Software Foundation; either version 2, or (at
   your option) any later version.

   This program is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
   02110-1301, USA.

*/

#ifndef _JIT_COMPILER2_X86_64MACHINEMETHODDECRIPTOR
#define _JIT_COMPILER2_X86_64MACHINEMETHODDECRIPTOR

#include "vm/jit/compiler2/MethodDescriptor.hpp"
#include "vm/jit/compiler2/MachineOperand.hpp"
#include "vm/jit/compiler2/x86_64/X86_64Register.hpp"

namespace cacao {
namespace jit {
namespace compiler2 {
namespace x86_64 {


/**
 * MachineMethodDescriptor
 */
class MachineMethodDescriptor {
private:
    const MethodDescriptor &MD;
    alloc::vector<MachineOperand*>::type parameter;
public:
    MachineMethodDescriptor(const MethodDescriptor &MD) : MD(MD), parameter(MD.size()) {
        unsigned int_argument_counter = 0;
        unsigned float_argument_counter = 0;
        int stackslot_index = 2;
        for (unsigned i = 0, e = MD.size(); i < e; ++i) {
            Type::TypeID type = MD[i];
            switch (type) {
            case Type::IntTypeID:
            case Type::LongTypeID:
            case Type::ReferenceTypeID:
                if (int_argument_counter < IntegerArgumentRegisterSize) {
                    parameter[i]= new NativeRegister(type,
                        IntegerArgumentRegisters[int_argument_counter]);
                } else {
                    parameter[i]= new StackSlot(stackslot_index,type);
                    stackslot_index++;
                }
                int_argument_counter++;
                break;
            case Type::FloatTypeID:
            case Type::DoubleTypeID:
                if (float_argument_counter < FloatArgumentRegisterSize) {
                    parameter[i]= new NativeRegister(type,
                        FloatArgumentRegisters[float_argument_counter]);
                } else {
                    parameter[i]= new StackSlot(stackslot_index,type);
                    stackslot_index++;
                }
                float_argument_counter++;
                break;
            default:
                ABORT_MSG("x86_64 MachineMethodDescriptor: Type not yet "
                    "supported!", "Type: " << type);
            }
        }
    }
    MachineOperand* operator[](unsigned index) const {
        assert(index < parameter.size());
        return parameter[index];
    }
    friend OStream& operator<<(OStream &OS, const MachineMethodDescriptor &MMD);
};

OStream& operator<<(OStream &OS, const MachineMethodDescriptor &MMD);
inline OStream& operator<<(OStream &OS, const MachineMethodDescriptor *MMD) {
    if (!MMD) {
        return OS << "(X86_64MachineMethodDescriptor) NULL";
    }
    return OS << *MMD;
}

} // end namespace x86_64
} // end namespace compiler2
} // end namespace jit
} // end namespace cacao

#endif /* _JIT_COMPILER2_X86_64MACHINEMETHODDECRIPTOR */


/*
 * These are local overrides for various environment variables in Emacs.
 * Please do not remove this and leave it at the end of the file, where
 * Emacs will automagically detect them.
 * ---------------------------------------------------------------------
 * Local variables:
 * mode: c++
 * indent-tabs-mode: t
 * c-basic-offset: 4
 * tab-width: 4
 * End:
 * vim:noexpandtab:sw=4:ts=4:
 */