/*
 * Copyright (c) 2016, Oracle and/or its affiliates.
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 * All rights reserved.
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 * Redistribution and use in source and binary forms, with or without modification, are
 * permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this list of
 * conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
 * conditions and the following disclaimer in the documentation and/or other materials provided
 * with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors may be used to
 * endorse or promote products derived from this software without specific prior written
 * permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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package com.oracle.truffle.llvm.nodes.func;

import java.util.List;

import com.oracle.truffle.api.frame.FrameDescriptor;
import com.oracle.truffle.api.frame.VirtualFrame;
import com.oracle.truffle.api.nodes.RootNode;
import com.oracle.truffle.api.source.SourceSection;
import com.oracle.truffle.llvm.nodes.asm.base.LLVMInlineAssemblyBlockNode;
import com.oracle.truffle.llvm.nodes.asm.base.LLVMInlineAssemblyPrologueNode;
import com.oracle.truffle.llvm.runtime.LLVMLanguage;
import com.oracle.truffle.llvm.runtime.nodes.api.LLVMExpressionNode;

public class LLVMInlineAssemblyRootNode extends RootNode {

    @Child private LLVMInlineAssemblyPrologueNode prologue;
    @Child private LLVMInlineAssemblyBlockNode block;
    private final SourceSection sourceSection;

    private final LLVMExpressionNode result;

    public LLVMInlineAssemblyRootNode(SourceSection sourceSection, LLVMLanguage language, FrameDescriptor frameDescriptor,
                    LLVMExpressionNode[] statements, List<LLVMExpressionNode> writeNodes, LLVMExpressionNode result) {
        super(language, frameDescriptor);
        this.sourceSection = sourceSection;
        this.prologue = new LLVMInlineAssemblyPrologueNode(writeNodes);
        this.block = new LLVMInlineAssemblyBlockNode(statements);
        this.result = result;
    }

    @Override
    public SourceSection getSourceSection() {
        return sourceSection;
    }

    @Override
    public Object execute(VirtualFrame frame) {
        prologue.executeGeneric(frame);
        block.executeGeneric(frame);
        return result == null ? 0 : result.executeGeneric(frame);
    }

}