Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/asm/sparc/SPARCStoreInstruction.java @ 3972:4f93f0d00802
7059019: G1: add G1 support to the SA
Summary: Extend the SA to recognize the G1CollectedHeap and implement any code that's needed by our serviceability tools (jmap, jinfo, jstack, etc.) that depend on the SA.
Reviewed-by: never, poonam, johnc
author | tonyp |
---|---|
date | Tue, 20 Sep 2011 09:59:59 -0400 |
parents | c18cbe5936b8 |
children |
line wrap: on
line source
/* * Copyright (c) 2002, 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 sun.jvm.hotspot.asm.sparc; import sun.jvm.hotspot.asm.*; public class SPARCStoreInstruction extends SPARCMemoryInstruction implements StoreInstruction { final protected SPARCRegister register2; // used by double word store instructions final protected Register[] storeSources; public SPARCStoreInstruction(String name, int opcode, SPARCRegisterIndirectAddress address, SPARCRegister register, int dataType) { super(name, opcode, address, register, dataType); if (opcode == STD || opcode == STDA) { storeSources = new Register[2]; storeSources[0] = register; int nextRegNum = (register.getNumber() + 1) % SPARCRegisters.NUM_REGISTERS; register2 = SPARCRegisters.getRegister(nextRegNum); storeSources[1] = register2; } else { storeSources = new Register[1]; storeSources[0] = register; register2 = null; } } private String defaultInitDescription(StringBuffer buf) { buf.append(getName()); buf.append(spaces); buf.append(register.toString()); buf.append(comma); buf.append(address.toString()); return buf.toString(); } protected String getDescription() { StringBuffer buf = new StringBuffer(); if (register == SPARCRegisters.G0) { switch (opcode) { case ST: buf.append("clr"); break; case STH: buf.append("clrh"); break; case STB: buf.append("clrb"); break; default: return defaultInitDescription(buf); } buf.append(spaces); buf.append(address.toString()); return buf.toString(); } else { return defaultInitDescription(buf); } } public int getDataType() { return dataType; } public Address getStoreDestination() { return address; } public Register[] getStoreSources() { return storeSources; } public boolean isStore() { return true; } }