Mercurial > hg > graal-compiler
view agent/src/share/classes/sun/jvm/hotspot/asm/x86/X86ShiftInstruction.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 |
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/* * Copyright 2003 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.x86; import sun.jvm.hotspot.asm.*; public class X86ShiftInstruction extends X86Instruction implements ShiftInstruction { final private int operation; final private Operand operand1; final private ImmediateOrRegister operand2; public X86ShiftInstruction(String name, int operation, Operand operand1, ImmediateOrRegister operand2, int size, int prefixes) { super(name, size, prefixes); this.operand1 = operand1; this.operand2 = operand2; this.operation = operation; } public String asString(long currentPc, SymbolFinder symFinder) { StringBuffer buf = new StringBuffer(); buf.append(getPrefixString()); buf.append(getName()); buf.append(spaces); buf.append(getOperandAsString(operand1)); if(operand2 != null) { buf.append(comma); if ((operand2 instanceof Register)) { buf.append(operand2.toString()); } else { Number number = ((Immediate)operand2).getNumber(); buf.append("0x"); buf.append(Integer.toHexString(number.intValue())); } } return buf.toString(); } public int getOperation() { return operation; } public Operand getShiftDestination() { return operand1; } public Operand getShiftLength() { return operand2; } public Operand getShiftSource() { return operand1; } public boolean isShift() { return true; } protected String getOperand2String() { return operand2.toString(); } }