Mercurial > hg > graal-compiler
view graal/com.oracle.graal.snippets/src/com/oracle/graal/snippets/nodes/WriteRegisterNode.java @ 8354:55ef03d64f03
Generalize read and write of fixed register for snippets. Move to HotSpot-independent project.
author | Christian Wimmer <christian.wimmer@oracle.com> |
---|---|
date | Mon, 18 Mar 2013 19:28:44 -0700 |
parents | |
children |
line wrap: on
line source
/* * Copyright (c) 2013, 2013, 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.snippets.nodes; import com.oracle.graal.api.code.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.graph.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.spi.*; import com.oracle.graal.nodes.type.*; /** * Changes the value of a specific register. */ @NodeInfo(nameTemplate = "WriteRegister %{p#register}") public final class WriteRegisterNode extends FixedWithNextNode implements LIRLowerable { /** * The fixed register to access. */ private final Register register; /** * The new value assigned to the register. */ @Input private ValueNode value; public WriteRegisterNode(Register register, ValueNode value) { super(StampFactory.forVoid()); this.register = register; this.value = value; } @Override public void generate(LIRGeneratorTool generator) { Value val = generator.operand(value); generator.emitMove(val, register.asValue(val.getKind())); } @Override public String toString(Verbosity verbosity) { if (verbosity == Verbosity.Name) { return super.toString(Verbosity.Name) + "%" + register; } else { return super.toString(verbosity); } } }