Mercurial > hg > truffle
diff graal/com.oracle.jvmci.code/src/com/oracle/jvmci/code/VirtualStackSlot.java @ 21556:48c1ebd24120
renamed com.oracle.graal.api[meta|code] modules to com.oracle.jvmci.[meta|code] (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Wed, 27 May 2015 00:36:16 +0200 |
parents | graal/com.oracle.graal.api.code/src/com/oracle/graal/api/code/VirtualStackSlot.java@082417ac43e4 |
children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.jvmci.code/src/com/oracle/jvmci/code/VirtualStackSlot.java Wed May 27 00:36:16 2015 +0200 @@ -0,0 +1,75 @@ +/* + * Copyright (c) 2014, 2014, 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.jvmci.code; + +import com.oracle.jvmci.meta.LIRKind; + +/** + * {@link VirtualStackSlot}s are stack slots that are not yet fixed to specific frame offset. They + * are replaced by real {@link StackSlot}s with a fixed position in the frame before code emission. + */ +public abstract class VirtualStackSlot extends StackSlotValue { + + private final int id; + + public VirtualStackSlot(int id, LIRKind lirKind) { + super(lirKind); + this.id = id; + } + + public int getId() { + return id; + } + + @Override + public String toString() { + return "vstack:" + id + getKindSuffix(); + } + + @Override + public int hashCode() { + final int prime = 31; + int result = super.hashCode(); + result = prime * result + id; + return result; + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + if (!super.equals(obj)) { + return false; + } + if (getClass() != obj.getClass()) { + return false; + } + VirtualStackSlot other = (VirtualStackSlot) obj; + if (id != other.id) { + return false; + } + return true; + } + +}