Mercurial > hg > graal-jvmci-8
view jvmci/jdk.vm.ci.code/src/jdk/vm/ci/code/Location.java @ 22783:d63506bb5237
Make CallingConvention.Type extensible; remove unused stackOnly parameter
author | Christian Wimmer <christian.wimmer@oracle.com> |
---|---|
date | Thu, 21 Jan 2016 13:53:26 -0800 |
parents | 1bbd4a7c274b |
children | 3e8ce13f4e12 |
line wrap: on
line source
/* * Copyright (c) 2015, 2015, 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 jdk.vm.ci.code; /** * Represents a location where a value can be stored. This can be either a {@link Register} or a * stack slot. */ public final class Location { public final Register reg; public final int offset; private Location(Register reg, int offset) { this.reg = reg; this.offset = offset; } /** * Create a {@link Location} for a register. */ public static Location register(Register reg) { return new Location(reg, 0); } /** * Create a {@link Location} for a vector subregister. * * @param reg the {@link Register vector register} * @param offset the offset in bytes into the vector register */ public static Location subregister(Register reg, int offset) { return new Location(reg, offset); } /** * Create a {@link Location} for a stack slot. */ public static Location stack(int offset) { return new Location(null, offset); } public boolean isRegister() { return reg != null; } public boolean isStack() { return reg == null; } @Override public String toString() { String regName; if (isRegister()) { regName = reg.name + ":"; } else { regName = "stack:"; } return regName + offset; } }