Mercurial > hg > graal-compiler
view agent/src/share/classes/sun/jvm/hotspot/asm/sparc/SPARCSethiInstruction.java @ 132:60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
Summary: combine many scalar variables into a single enum-indexed array in SystemDictionary.
Reviewed-by: kvn
author | jrose |
---|---|
date | Tue, 29 Apr 2008 19:45:22 -0700 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
line wrap: on
line source
/* * Copyright 2002 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ package sun.jvm.hotspot.asm.sparc; import sun.jvm.hotspot.asm.*; public class SPARCSethiInstruction extends SPARCInstruction implements MoveInstruction { final private SPARCRegister register; final private ImmediateOrRegister value; final private String description; public SPARCSethiInstruction(int value, SPARCRegister register) { super("sethi"); this.register = register; value <<= 10; this.value = new Immediate(new Integer(value)); description = initDescription(value); } private String initDescription(int val) { if (val == 0 && register == SPARCRegisters.G0) { return "nop"; } else { StringBuffer buf = new StringBuffer(); buf.append(getName()); buf.append(spaces); buf.append("%hi(0x"); buf.append(Integer.toHexString(val)); buf.append(')'); buf.append(comma); buf.append(register.toString()); return buf.toString(); } } public String asString(long currentPc, SymbolFinder symFinder) { return description; } public Register getMoveDestination() { return register; } public ImmediateOrRegister getMoveSource() { return value; } public boolean isConditional() { return false; } }