/*
 * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package com.oracle.max.graal.compiler.target.amd64;

import com.oracle.max.asm.*;
import com.oracle.max.asm.target.amd64.*;
import com.oracle.max.graal.compiler.*;
import com.oracle.max.graal.compiler.gen.*;
import com.oracle.max.graal.compiler.lir.*;
import com.oracle.max.graal.compiler.stub.*;
import com.oracle.max.graal.compiler.stub.CompilerStub.Id;
import com.oracle.max.graal.compiler.target.*;
import com.sun.cri.ci.CiCompiler.DebugInfoLevel;
import com.sun.cri.ci.*;
import com.sun.cri.ri.*;
import com.sun.cri.xir.*;

/**
 * The {@code X86Backend} class represents the backend for the AMD64 architecture.
 */
public class AMD64Backend extends Backend {

    public AMD64Backend(GraalCompiler compiler) {
        super(compiler);
    }
    /**
     * Creates a new LIRGenerator for x86.
     * @param compilation the compilation for which to create the LIR generator
     * @return an appropriate LIR generator instance
     */
    @Override
    public LIRGenerator newLIRGenerator(GraalCompilation compilation, RiXirGenerator xir) {
        return new AMD64LIRGenerator(compilation, xir);
    }

    @Override
    public FrameMap newFrameMap(GraalCompilation compilation, RiResolvedMethod method) {
        return new FrameMap(compilation, method);
    }

    @Override
    public AbstractAssembler newAssembler(RiRegisterConfig registerConfig) {
        return new AMD64MacroAssembler(compiler.target, registerConfig);
    }

    @Override
    public CiXirAssembler newXirAssembler() {
        return new AMD64XirAssembler(compiler.target);
    }

    @Override
    public CompilerStub emit(GraalContext context, Id stub) {
        final GraalCompilation comp = new GraalCompilation(context, compiler, null, -1, null, DebugInfoLevel.FULL);
        try {
            return new AMD64CompilerStubEmitter(comp, stub.arguments, stub.resultKind).emit(stub);
        } finally {
            comp.close();
        }
    }

    @Override
    public CompilerStub emit(GraalContext context, CiRuntimeCall rtCall) {
        final GraalCompilation comp = new GraalCompilation(context, compiler, null, -1, null, DebugInfoLevel.FULL);
        try {
            return new AMD64CompilerStubEmitter(comp, rtCall.arguments, rtCall.resultKind).emit(rtCall);
        } finally {
            comp.close();
        }
    }

    private static CiKind[] getArgumentKinds(XirTemplate template) {
        CiXirAssembler.XirParameter[] params = template.parameters;
        CiKind[] result = new CiKind[params.length];
        for (int i = 0; i < params.length; i++) {
            result[i] = params[i].kind;
        }
        return result;
    }


    @Override
    public CompilerStub emit(GraalContext context, XirTemplate t) {
        final GraalCompilation comp = new GraalCompilation(context, compiler, null, -1, null, DebugInfoLevel.FULL);
        try {
            return new AMD64CompilerStubEmitter(comp, getArgumentKinds(t), t.resultOperand.kind).emit(t);
        } finally {
            comp.close();
        }
    }
}