Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/WriteLocalNode.java @ 13654:32af063cc29c
Don't create null guards for values that are already known to be non-null.
author | Gilles Duboscq <duboscq@ssw.jku.at> |
---|---|
date | Thu, 16 Jan 2014 12:18:29 +0100 |
parents | 136df94b5aa8 |
children |
line wrap: on
line source
/* * Copyright (c) 2012, 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.truffle.sl.nodes; import com.oracle.truffle.api.*; import com.oracle.truffle.api.dsl.*; import com.oracle.truffle.api.frame.*; @NodeChild(value = "rightNode", type = TypedNode.class) public abstract class WriteLocalNode extends FrameSlotNode { public WriteLocalNode(FrameSlot slot) { super(slot); } public WriteLocalNode(WriteLocalNode node) { this(node.slot); } @Specialization(guards = "isIntKind") public int write(VirtualFrame frame, int right) { frame.setInt(slot, right); return right; } @Specialization(guards = "isBooleanKind") public boolean write(VirtualFrame frame, boolean right) { frame.setBoolean(slot, right); return right; } @Specialization(guards = "isObjectKind") public Object writeGeneric(VirtualFrame frame, Object right) { frame.setObject(slot, right); return right; } protected final boolean isIntKind() { return isKind(FrameSlotKind.Int); } protected final boolean isBooleanKind() { return isKind(FrameSlotKind.Boolean); } protected final boolean isObjectKind() { if (slot.getKind() != FrameSlotKind.Object) { CompilerDirectives.transferToInterpreter(); slot.setKind(FrameSlotKind.Object); } return true; } private boolean isKind(FrameSlotKind kind) { return slot.getKind() == kind || initialSetKind(kind); } private boolean initialSetKind(FrameSlotKind kind) { if (slot.getKind() == FrameSlotKind.Illegal) { CompilerDirectives.transferToInterpreter(); slot.setKind(kind); return true; } return false; } }