Mercurial > hg > graal-compiler
view agent/src/share/classes/sun/jvm/hotspot/asm/x86/GRPDecoder.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 2002-2003 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 GRPDecoder extends InstructionDecoder { final private int number; //Please refer to IA-32 Intel Architecture Software Developer's Manual Volume 2 //APPENDIX A - Table A-4. Opcode Extensions for One and Two-byte Opcodes by Group Number. private static final InstructionDecoder grpTable[][] = { { new ArithmeticDecoder("addb", ADDR_E, b_mode, ADDR_I, b_mode, RTLOP_ADD), new LogicalDecoder("orb", ADDR_E, b_mode, ADDR_I, b_mode, RTLOP_OR), new ArithmeticDecoder("adcb", ADDR_E, b_mode, ADDR_I, b_mode, RTLOP_ADDC), new ArithmeticDecoder("sbbb", ADDR_E, b_mode, ADDR_I, b_mode, RTLOP_SUBC), new LogicalDecoder("andb", ADDR_E, b_mode, ADDR_I, b_mode, RTLOP_AND), new ArithmeticDecoder("subb", ADDR_E, b_mode, ADDR_I, b_mode, RTLOP_SUB), new LogicalDecoder("xorb", ADDR_E, b_mode, ADDR_I, b_mode, RTLOP_XOR), new InstructionDecoder("cmpb", ADDR_E, b_mode, ADDR_I, b_mode) }, { new ArithmeticDecoder("addS", ADDR_E, v_mode, ADDR_I, v_mode, RTLOP_ADD), new LogicalDecoder("orS", ADDR_E, v_mode, ADDR_I, v_mode, RTLOP_OR), new ArithmeticDecoder("adcS", ADDR_E, v_mode, ADDR_I, v_mode, RTLOP_ADDC), new ArithmeticDecoder("sbbS", ADDR_E, v_mode, ADDR_I, v_mode, RTLOP_SUBC), new LogicalDecoder("andS", ADDR_E, v_mode, ADDR_I, v_mode, RTLOP_AND), new ArithmeticDecoder("subS", ADDR_E, v_mode, ADDR_I, v_mode, RTLOP_SUB), new LogicalDecoder("xorS", ADDR_E, v_mode, ADDR_I, v_mode, RTLOP_XOR), new InstructionDecoder("cmpS", ADDR_E, v_mode, ADDR_I, v_mode) }, { new ArithmeticDecoder("addS", ADDR_E, v_mode, ADDR_I, b_mode, RTLOP_ADD), /*note: sIb here*/ new LogicalDecoder("orS", ADDR_E, v_mode, ADDR_I, b_mode, RTLOP_OR), new ArithmeticDecoder("adcS", ADDR_E, v_mode, ADDR_I, b_mode, RTLOP_ADDC), new ArithmeticDecoder("sbbS", ADDR_E, v_mode, ADDR_I, b_mode, RTLOP_SUBC), new LogicalDecoder("andS", ADDR_E, v_mode, ADDR_I, b_mode, RTLOP_AND), new ArithmeticDecoder("subS", ADDR_E, v_mode, ADDR_I, b_mode, RTLOP_SUB), new LogicalDecoder("xorS", ADDR_E, v_mode, ADDR_I, b_mode, RTLOP_XOR), new InstructionDecoder("cmpS", ADDR_E, v_mode, ADDR_I, b_mode) }, { new RotateDecoder("rolb", ADDR_E, b_mode, ADDR_I, b_mode), new RotateDecoder("rorb", ADDR_E, b_mode, ADDR_I, b_mode), new RotateDecoder("rclb", ADDR_E, b_mode, ADDR_I, b_mode), new RotateDecoder("rcrb", ADDR_E, b_mode, ADDR_I, b_mode), new ShiftDecoder("shlb", ADDR_E, b_mode, ADDR_I, b_mode, RTLOP_SLL), new ShiftDecoder("shrb", ADDR_E, b_mode, ADDR_I, b_mode, RTLOP_SRL), null, new ShiftDecoder("sarb", ADDR_E, b_mode, ADDR_I, b_mode, RTLOP_SRA), }, { new RotateDecoder("rolS", ADDR_E, v_mode, ADDR_I, b_mode), new RotateDecoder("rorS", ADDR_E, v_mode, ADDR_I, b_mode), new RotateDecoder("rclS", ADDR_E, v_mode, ADDR_I, b_mode), new RotateDecoder("rcrS", ADDR_E, v_mode, ADDR_I, b_mode), new ShiftDecoder("shlS", ADDR_E, v_mode, ADDR_I, b_mode, RTLOP_SLL), new ShiftDecoder("shrS", ADDR_E, v_mode, ADDR_I, b_mode, RTLOP_SRL), null, new ShiftDecoder("sarS", ADDR_E, v_mode, ADDR_I, b_mode, RTLOP_SRA) }, { new RotateDecoder("rolb", ADDR_E, b_mode), new RotateDecoder("rorb", ADDR_E, b_mode), new RotateDecoder("rclb", ADDR_E, b_mode), new RotateDecoder("rcrb", ADDR_E, b_mode), new ShiftDecoder("shlb", ADDR_E, b_mode, RTLOP_SLL), new ShiftDecoder("shrb", ADDR_E, b_mode, RTLOP_SRL), null, new ShiftDecoder("sarb", ADDR_E, b_mode, RTLOP_SRA) }, { new RotateDecoder("rolS", ADDR_E, v_mode), new RotateDecoder("rorS", ADDR_E, v_mode), new RotateDecoder("rclS", ADDR_E, v_mode), new RotateDecoder("rcrS", ADDR_E, v_mode), new ShiftDecoder("shlS", ADDR_E, v_mode, RTLOP_SLL), new ShiftDecoder("shrS", ADDR_E, v_mode, RTLOP_SRL), null, new ShiftDecoder("sarS", ADDR_E, v_mode, RTLOP_SRA) }, { new RotateDecoder("rolb", ADDR_E, b_mode, ADDR_REG, CL), new RotateDecoder("rorb", ADDR_E, b_mode, ADDR_REG, CL), new RotateDecoder("rclb", ADDR_E, b_mode, ADDR_REG, CL), new RotateDecoder("rcrb", ADDR_E, b_mode, ADDR_REG, CL), new ShiftDecoder( "shlb", ADDR_E, b_mode, ADDR_REG, CL, RTLOP_SLL), new ShiftDecoder("shrb", ADDR_E, b_mode, ADDR_REG, CL, RTLOP_SRL), null, new ShiftDecoder("sarb", ADDR_E, b_mode, ADDR_REG, CL, RTLOP_SRA) }, { new RotateDecoder("rolS", ADDR_E, v_mode, ADDR_REG, CL), new RotateDecoder("rorS", ADDR_E, v_mode, ADDR_REG, CL), new RotateDecoder("rclS", ADDR_E, v_mode, ADDR_REG, CL), new RotateDecoder("rcrS", ADDR_E, v_mode, ADDR_REG, CL), new ShiftDecoder("shlS", ADDR_E, v_mode, ADDR_REG, CL, RTLOP_SLL), new ShiftDecoder("shrS", ADDR_E, v_mode, ADDR_REG, CL, RTLOP_SRL), null, new ShiftDecoder("sarS", ADDR_E, v_mode, ADDR_REG, CL, RTLOP_SRA) }, { new InstructionDecoder("testb", ADDR_E, b_mode, ADDR_I, b_mode), null, /*new InstructionDecoder("(bad)", ADDR_E, b_mode)*/ new LogicalDecoder("notb", ADDR_E, b_mode, RTLOP_NOT), new InstructionDecoder("negb", ADDR_E, b_mode), new ArithmeticDecoder("mulb", ADDR_REG, AL, ADDR_E, b_mode, RTLOP_UMUL), new ArithmeticDecoder("imulb", ADDR_REG, AL, ADDR_E, b_mode, RTLOP_SMUL), new ArithmeticDecoder("divb", ADDR_REG, AL, ADDR_E, b_mode, RTLOP_UDIV), new ArithmeticDecoder("idivb", ADDR_REG, AL, ADDR_E, b_mode, RTLOP_SDIV) }, { new InstructionDecoder("testS", ADDR_E, v_mode, ADDR_I, v_mode), null, new LogicalDecoder("notS", ADDR_E, v_mode, RTLOP_NOT), new InstructionDecoder("negS", ADDR_E, v_mode), new ArithmeticDecoder("mulS", ADDR_REG, EAX, ADDR_E, v_mode, RTLOP_UMUL), new ArithmeticDecoder("imulS", ADDR_REG, EAX, ADDR_E, v_mode, RTLOP_SMUL), new ArithmeticDecoder("divS", ADDR_REG, EAX, ADDR_E, v_mode, RTLOP_SDIV), new ArithmeticDecoder("idivS", ADDR_REG, EAX, ADDR_E, v_mode, RTLOP_SDIV) }, { new ArithmeticDecoder("incb", ADDR_E, b_mode, RTLOP_ADD), new ArithmeticDecoder("decb", ADDR_E, b_mode, RTLOP_SUB), null, null, null, null, null, null }, { new ArithmeticDecoder("incS", ADDR_E, v_mode, RTLOP_ADD), new ArithmeticDecoder("decS", ADDR_E, v_mode, RTLOP_SUB), new CallDecoder("call", ADDR_E, v_mode), new CallDecoder("lcall", ADDR_E, p_mode), new JmpDecoder("jmp", ADDR_E, v_mode), new JmpDecoder("ljmp", ADDR_E, p_mode), new InstructionDecoder("pushS", ADDR_E, v_mode), null }, { new InstructionDecoder("sldt", ADDR_E, w_mode), new InstructionDecoder("str", ADDR_E, w_mode), new InstructionDecoder("lldt", ADDR_E, w_mode), new InstructionDecoder("ltr", ADDR_E, w_mode), new InstructionDecoder("verr", ADDR_E, w_mode), new InstructionDecoder("verw", ADDR_E, w_mode), null, null }, { new InstructionDecoder("sgdt", ADDR_E, w_mode), new InstructionDecoder("sidt", ADDR_E, w_mode), new InstructionDecoder("lgdt", ADDR_E, w_mode), new InstructionDecoder("lidt", ADDR_E, w_mode), new InstructionDecoder("smsw", ADDR_E, w_mode), null, new InstructionDecoder("lmsw", ADDR_E, w_mode), new InstructionDecoder("invlpg", ADDR_E, w_mode) }, { null, null, null, null, new InstructionDecoder("btS", ADDR_E, v_mode, ADDR_I, b_mode), new InstructionDecoder("btsS", ADDR_E, v_mode, ADDR_I, b_mode), new InstructionDecoder("btrS", ADDR_E, v_mode, ADDR_I, b_mode), new InstructionDecoder("btcS", ADDR_E, v_mode, ADDR_I, b_mode) }, /*16*/ { null, new SSEInstructionDecoder("cmpxch8b", ADDR_W, q_mode), null, null, null, null, null, null }, /*17*/ { null, null, new SSEShiftDecoder("psrlw", ADDR_P, q_mode, ADDR_I, b_mode, RTLOP_SRL), null, new SSEShiftDecoder("psraw", ADDR_P, q_mode, ADDR_I, b_mode, RTLOP_SRA), null, new SSEShiftDecoder("psllw", ADDR_P, q_mode, ADDR_I, b_mode, RTLOP_SLL), null }, /*18*/ { null, null, new SSEShiftDecoder("psrld", ADDR_P, q_mode, ADDR_I, b_mode, RTLOP_SRL), null, new SSEShiftDecoder("psrad", ADDR_P, q_mode, ADDR_I, b_mode, RTLOP_SRA), null, new SSEShiftDecoder("pslld", ADDR_P, q_mode, ADDR_I, b_mode, RTLOP_SLL), null }, /*19*/ { null, null, new SSEShiftDecoder("psrlq", ADDR_P, q_mode, ADDR_I, b_mode, RTLOP_SRL), null, null, null, new SSEShiftDecoder("psllq", ADDR_P, q_mode, ADDR_I, b_mode, RTLOP_SLL), null }, /*20 - Grp15*/ { new SSEInstructionDecoder("fxsave"), new SSEInstructionDecoder("fxrstor"), new SSEInstructionDecoder("ldmxcsr"), new SSEInstructionDecoder("stmxcsr"), null, null, null, new SSEInstructionDecoder("clflush") }, /*21 - Grp16*/ { new SSEInstructionDecoder("prefetchnta"), new SSEInstructionDecoder("prefetcht0"), new SSEInstructionDecoder("prefetcht1"), new SSEInstructionDecoder("prefetcht2"), null, null, null, null }, /*22 - Grp12:66*/ { null, null, new SSEShiftDecoder("psrlw", ADDR_P, dq_mode, ADDR_I, b_mode, RTLOP_SRL), null, new SSEShiftDecoder("psraw", ADDR_P, dq_mode, ADDR_I, b_mode, RTLOP_SRA), null, new SSEShiftDecoder("psllw", ADDR_P, dq_mode, ADDR_I, b_mode, RTLOP_SLL), null }, /*23 - Grp13:66*/ { null, null, new SSEShiftDecoder("psrld", ADDR_W, dq_mode, ADDR_I, b_mode, RTLOP_SRL), null, new SSEShiftDecoder("psrad", ADDR_W, dq_mode, ADDR_I, b_mode, RTLOP_SRA), null, new SSEShiftDecoder("pslld", ADDR_W, dq_mode, ADDR_I, b_mode, RTLOP_SLL), null }, /*24 - - Grp14:66*/ { null, null, new SSEShiftDecoder("psrlq", ADDR_W, dq_mode, ADDR_I, b_mode, RTLOP_SRL), new SSEShiftDecoder("psrldq", ADDR_W, dq_mode, ADDR_I, b_mode, RTLOP_SRL), null, null, new SSEShiftDecoder("psllq", ADDR_W, dq_mode, ADDR_I, b_mode, RTLOP_SLL), new SSEShiftDecoder("psllq", ADDR_W, dq_mode, ADDR_I, b_mode, RTLOP_SLL) } }; public GRPDecoder(String name, int number) { super(name); this.number = number; } public Instruction decode(byte[] bytesArray, int index, int instrStartIndex, int segmentOverride, int prefixes, X86InstructionFactory factory) { this.byteIndex = index; this.instrStartIndex = instrStartIndex; this.prefixes = prefixes; int ModRM = readByte(bytesArray, byteIndex); int reg = (ModRM >> 3) & 7; InstructionDecoder instrDecoder = grpTable[number][reg]; Instruction instr = null; if(instrDecoder != null) { instr = instrDecoder.decode(bytesArray, byteIndex, instrStartIndex, segmentOverride, prefixes, factory); byteIndex = instrDecoder.getCurrentIndex(); } else { instr = factory.newIllegalInstruction(); } return instr; } }