Mercurial > hg > graal-compiler
view graal/GraalCompiler/src/com/sun/c1x/globalstub/GlobalStub.java @ 2515:4fdef1464592
Removed extended bytecodes and related HIR instructions.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 27 Apr 2011 15:36:29 +0200 |
parents | 16b9a8b5ad39 |
children |
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/* * Copyright (c) 2009, 2010, 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 com.sun.c1x.globalstub; import static com.sun.cri.ci.CiKind.*; import com.sun.cri.ci.*; /** * A global stub is a shared routine that performs an operation on behalf of compiled code. * Typically the routine is too large to inline, is infrequent, or requires runtime support. * Global stubs are called with a callee-save convention; the global stub must save any * registers it may destroy and then restore them upon return. This allows the register * allocator to ignore calls to global stubs. Parameters to global stubs are * passed on the stack in order to preserve registers for the rest of the code. * * @author Thomas Wuerthinger * @author Ben L. Titzer */ public class GlobalStub { public enum Id { fneg(Float, Float), dneg(Double, Double), f2i(Int, Float), f2l(Long, Float), d2i(Int, Double), d2l(Long, Double); public final CiKind resultKind; public final CiKind[] arguments; private Id(CiKind resultKind, CiKind... args) { this.resultKind = resultKind; this.arguments = args; } } public final Id id; public final CiKind resultKind; public final Object stubObject; public final int argsSize; public final int[] argOffsets; public final int resultOffset; public GlobalStub(Id id, CiKind resultKind, Object stubObject, int argsSize, int[] argOffsets, int resultOffset) { this.id = id; this.resultKind = resultKind; this.stubObject = stubObject; this.argsSize = argsSize; this.argOffsets = argOffsets; this.resultOffset = resultOffset; } }