001/*
002 * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation.
008 *
009 * This code is distributed in the hope that it will be useful, but WITHOUT
010 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
011 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
012 * version 2 for more details (a copy is included in the LICENSE file that
013 * accompanied this code).
014 *
015 * You should have received a copy of the GNU General Public License version
016 * 2 along with this work; if not, write to the Free Software Foundation,
017 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
018 *
019 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
020 * or visit www.oracle.com if you need additional information or have any
021 * questions.
022 */
023package com.oracle.graal.lir.amd64;
024
025import jdk.internal.jvmci.code.*;
026import jdk.internal.jvmci.meta.*;
027import static com.oracle.graal.lir.LIRInstruction.OperandFlag.*;
028
029import com.oracle.graal.asm.amd64.*;
030import com.oracle.graal.lir.*;
031import com.oracle.graal.lir.asm.*;
032
033public final class AMD64CCall extends AMD64LIRInstruction {
034    public static final LIRInstructionClass<AMD64CCall> TYPE = LIRInstructionClass.create(AMD64CCall.class);
035
036    @Def({REG, ILLEGAL}) protected Value result;
037    @Use({REG, STACK}) protected Value[] parameters;
038    @Use({REG}) protected Value functionPtr;
039    @Use({REG}) protected Value numberOfFloatingPointArguments;
040
041    public AMD64CCall(Value result, Value functionPtr, Value numberOfFloatingPointArguments, Value[] parameters) {
042        super(TYPE);
043        this.result = result;
044        this.functionPtr = functionPtr;
045        this.parameters = parameters;
046        this.numberOfFloatingPointArguments = numberOfFloatingPointArguments;
047    }
048
049    @Override
050    public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) {
051        directCall(masm);
052    }
053
054    private void directCall(AMD64MacroAssembler masm) {
055        Register reg = ValueUtil.asRegister(functionPtr);
056        masm.call(reg);
057        masm.ensureUniquePC();
058    }
059
060    @Override
061    public boolean destroysCallerSavedRegisters() {
062        return true;
063    }
064
065}