Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/asm/sparc/SPARCArithmeticInstruction.java @ 210:05712c37c828
6676016: ParallelOldGC leaks memory
Summary: ensure that GCTask threads release resource and handle memory
Reviewed-by: jmasa, chrisphi
author | jcoomes |
---|---|
date | Wed, 18 Jun 2008 18:36:47 -0700 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
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/* * 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 SPARCArithmeticInstruction extends SPARCFormat3AInstruction implements ArithmeticInstruction { final private int operation; public SPARCArithmeticInstruction(String name, int opcode, int operation, SPARCRegister rs1, ImmediateOrRegister operand2, SPARCRegister rd) { super(name, opcode, rs1, operand2, rd); this.operation = operation; } protected String getDescription() { if (rd == rs1 && operand2.isImmediate()) { int value = ((Immediate)operand2).getNumber().intValue(); StringBuffer buf = new StringBuffer(); switch (opcode) { case ADD: buf.append("inc"); break; case ADDcc: buf.append("inccc"); break; case SUB: buf.append("dec"); break; case SUBcc: buf.append("deccc"); break; default: return super.getDescription(); } buf.append(spaces); if (value != 1) { buf.append(getOperand2String()); buf.append(comma); } buf.append(rd.toString()); return buf.toString(); } else if (rd == SPARCRegisters.G0 && opcode == SUBcc) { StringBuffer buf = new StringBuffer(); buf.append("cmp"); buf.append(spaces); buf.append(rs1.toString()); buf.append(comma); buf.append(getOperand2String()); return buf.toString(); } else if (rs1 == SPARCRegisters.G0 && opcode == SUB && operand2.isRegister()) { StringBuffer buf = new StringBuffer(); buf.append("neg"); buf.append(spaces); buf.append(operand2.toString()); if (operand2 != rd) { buf.append(comma); buf.append(rd.toString()); } return buf.toString(); } return super.getDescription(); } public Operand getArithmeticDestination() { return getDestinationRegister(); } public Operand[] getArithmeticSources() { return (new Operand[] { rs1, operand2 }); } public int getOperation() { return operation; } public boolean isArithmetic() { return true; } }