Mercurial > hg > graal-jvmci-8
view graal/com.oracle.graal.api.code/src/com/oracle/graal/api/code/CallingConvention.java @ 5711:4d7175cf3526
enabled Eclipse/JDT javadoc checking and fixed resulting warnings
author | Doug Simon <doug.simon@oracle.com> |
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date | Thu, 28 Jun 2012 11:11:12 +0200 |
parents | b6617d13ea44 |
children | dfcb73ac6ba2 |
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/* * Copyright (c) 2009, 2012, 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.oracle.graal.api.code; import static com.oracle.graal.api.code.ValueUtil.*; import com.oracle.graal.api.meta.*; /** * A calling convention describes the locations in which the arguments for a call are placed. */ public class CallingConvention { /** * Constants denoting the type of a call for which a calling convention is * {@linkplain RegisterConfig#getCallingConvention(Type, Kind[], TargetDescription, boolean) requested}. */ public enum Type { /** * A request for the outgoing argument locations at a call site to Java code. */ JavaCall(true), /** * A request for the incoming argument locations. */ JavaCallee(false), /** * A request for the outgoing argument locations at a call site to the runtime (which may be Java or native code). */ RuntimeCall(true), /** * A request for the outgoing argument locations at a call site to * external native code that complies with the platform ABI. */ NativeCall(true); /** * Determines if this is a request for the outgoing argument locations at a call site. */ public final boolean out; public static final Type[] VALUES = values(); private Type(boolean out) { this.out = out; } } /** * The amount of stack space (in bytes) required for the stack-based arguments of the call. */ public final int stackSize; /** * The locations in which the arguments are placed. This array ordered by argument index. */ public final Value[] locations; public CallingConvention(Value[] locations, int stackSize) { this.locations = locations; this.stackSize = stackSize; assert verify(); } @Override public String toString() { StringBuilder result = new StringBuilder(); result.append("CallingConvention["); for (Value op : locations) { result.append(op.toString()).append(" "); } result.append("]"); return result.toString(); } private boolean verify() { for (int i = 0; i < locations.length; i++) { Value location = locations[i]; assert isStackSlot(location) || isRegister(location); } return true; } }