Mercurial > hg > truffle
diff graal/com.oracle.graal.api.code/src/com/oracle/graal/api/code/CallingConvention.java @ 5547:b6617d13ea44
Dropping Ci* prefixes. Some additional renamings in the api.code interface.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Sat, 09 Jun 2012 20:10:05 +0200 |
parents | graal/com.oracle.graal.api.code/src/com/oracle/graal/api/code/CiCallingConvention.java@bc647d8b0080 |
children | 4d7175cf3526 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.graal.api.code/src/com/oracle/graal/api/code/CallingConvention.java Sat Jun 09 20:10:05 2012 +0200 @@ -0,0 +1,107 @@ +/* + * 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, CiKind[], CiTarget, 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; + } +}