1/*
2 * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23package org.graalvm.compiler.lir.amd64;
24
25import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.ILLEGAL;
26import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG;
27import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.STACK;
28
29import org.graalvm.compiler.asm.amd64.AMD64MacroAssembler;
30import org.graalvm.compiler.lir.LIRInstructionClass;
31import org.graalvm.compiler.lir.asm.CompilationResultBuilder;
32
33import jdk.vm.ci.code.Register;
34import jdk.vm.ci.code.ValueUtil;
35import jdk.vm.ci.meta.Value;
36
37public final class AMD64CCall extends AMD64LIRInstruction {
38    public static final LIRInstructionClass<AMD64CCall> TYPE = LIRInstructionClass.create(AMD64CCall.class);
39
40    @Def({REG, ILLEGAL}) protected Value result;
41    @Use({REG, STACK}) protected Value[] parameters;
42    @Use({REG}) protected Value functionPtr;
43    @Use({REG}) protected Value numberOfFloatingPointArguments;
44
45    public AMD64CCall(Value result, Value functionPtr, Value numberOfFloatingPointArguments, Value[] parameters) {
46        super(TYPE);
47        this.result = result;
48        this.functionPtr = functionPtr;
49        this.parameters = parameters;
50        this.numberOfFloatingPointArguments = numberOfFloatingPointArguments;
51    }
52
53    @Override
54    public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) {
55        directCall(masm);
56    }
57
58    private void directCall(AMD64MacroAssembler masm) {
59        Register reg = ValueUtil.asRegister(functionPtr);
60        masm.call(reg);
61        masm.ensureUniquePC();
62    }
63
64    @Override
65    public boolean destroysCallerSavedRegisters() {
66        return true;
67    }
68
69}
70