Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.ruby.nodes/src/com/oracle/truffle/ruby/nodes/call/BoxingDispatchNode.java @ 13792:9e7acc9cad8e
kill unused frame states when loop exits are removed
thanks to Gilles
author | Andreas Woess <andreas.woess@jku.at> |
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date | Tue, 28 Jan 2014 23:38:22 +0100 |
parents | 0fbee3eb71f0 |
children |
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/* * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved. This * code is released under a tri EPL/GPL/LGPL license. You can use it, * redistribute it and/or modify it under the terms of the: * * Eclipse Public License version 1.0 * GNU General Public License version 2 * GNU Lesser General Public License version 2.1 */ package com.oracle.truffle.ruby.nodes.call; import com.oracle.truffle.api.*; import com.oracle.truffle.api.frame.*; import com.oracle.truffle.api.utilities.*; import com.oracle.truffle.ruby.runtime.*; import com.oracle.truffle.ruby.runtime.core.*; import com.oracle.truffle.ruby.runtime.objects.*; /** * A node in the dispatch chain that boxes the receiver into a full Ruby {@link RubyBasicObject}. * This node is initially created as an {@link UninitializedBoxingDispatchNode} and only becomes * this node when we know that we do need to box on the fast path. Within this node we specialized * for the case that the receiver is always already boxed. */ public class BoxingDispatchNode extends UnboxedDispatchNode { @Child protected BoxedDispatchNode next; private final BranchProfile boxBranch = new BranchProfile(); public BoxingDispatchNode(RubyContext context, SourceSection sourceSection, BoxedDispatchNode next) { super(context, sourceSection); this.next = adoptChild(next); } @Override public Object dispatch(VirtualFrame frame, Object receiverObject, RubyProc blockObject, Object[] argumentsObjects) { RubyBasicObject boxedReceiverObject; if (receiverObject instanceof RubyBasicObject) { boxedReceiverObject = (RubyBasicObject) receiverObject; } else { boxBranch.enter(); boxedReceiverObject = getContext().getCoreLibrary().box(receiverObject); } return next.dispatch(frame, boxedReceiverObject, blockObject, argumentsObjects); } }