1/*
2 * Copyright (c) 2011, 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.REG;
26import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.STACK;
27
28import org.graalvm.compiler.asm.amd64.AMD64MacroAssembler;
29import org.graalvm.compiler.lir.LIRInstructionClass;
30import org.graalvm.compiler.lir.Opcode;
31import org.graalvm.compiler.lir.asm.CompilationResultBuilder;
32
33import jdk.vm.ci.meta.Value;
34
35/**
36 * Emits a breakpoint.
37 */
38@Opcode("BREAKPOINT")
39public final class AMD64BreakpointOp extends AMD64LIRInstruction {
40    public static final LIRInstructionClass<AMD64BreakpointOp> TYPE = LIRInstructionClass.create(AMD64BreakpointOp.class);
41
42    /**
43     * A set of values loaded into the Java ABI parameter locations (for inspection by a debugger).
44     */
45    @Use({REG, STACK}) protected Value[] parameters;
46
47    public AMD64BreakpointOp(Value[] parameters) {
48        super(TYPE);
49        this.parameters = parameters;
50    }
51
52    @Override
53    public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler asm) {
54        asm.int3();
55    }
56}
57