dyn_inst.cc revision 10259
1/* 2 * Copyright (c) 2013-2014 ARM Limited 3 * All rights reserved 4 * 5 * The license below extends only to copyright in the software and shall 6 * not be construed as granting a license to any other intellectual 7 * property including but not limited to intellectual property relating 8 * to a hardware implementation of the functionality of the software 9 * licensed hereunder. You may use the software subject to the license 10 * terms below provided that you ensure that this notice is replicated 11 * unmodified and in its entirety in all distributions of the software, 12 * modified or unmodified, in source code or in binary form. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions are 16 * met: redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer; 18 * redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution; 21 * neither the name of the copyright holders nor the names of its 22 * contributors may be used to endorse or promote products derived from 23 * this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 29 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 30 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 31 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 35 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 36 * 37 * Authors: Andrew Bardsley 38 */ 39 40#include <iomanip> 41#include <sstream> 42 43#include "arch/isa.hh" 44#include "arch/registers.hh" 45#include "cpu/minor/dyn_inst.hh" 46#include "cpu/minor/trace.hh" 47#include "cpu/base.hh" 48#include "cpu/reg_class.hh" 49#include "debug/MinorExecute.hh" 50#include "enums/OpClass.hh" 51 52namespace Minor 53{ 54 55std::ostream & 56operator <<(std::ostream &os, const InstId &id) 57{ 58 os << id.threadId << '/' << id.streamSeqNum << '.' 59 << id.predictionSeqNum << '/' << id.lineSeqNum; 60 61 /* Not all structures have fetch and exec sequence numbers */ 62 if (id.fetchSeqNum != 0) { 63 os << '/' << id.fetchSeqNum; 64 if (id.execSeqNum != 0) 65 os << '.' << id.execSeqNum; 66 } 67 68 return os; 69} 70 71MinorDynInstPtr MinorDynInst::bubbleInst = NULL; 72 73void 74MinorDynInst::init() 75{ 76 if (!bubbleInst) { 77 bubbleInst = new MinorDynInst(); 78 assert(bubbleInst->isBubble()); 79 /* Make bubbleInst immortal */ 80 bubbleInst->incref(); 81 } 82} 83 84bool 85MinorDynInst::isLastOpInInst() const 86{ 87 assert(staticInst); 88 return !(staticInst->isMicroop() && !staticInst->isLastMicroop()); 89} 90 91bool 92MinorDynInst::isNoCostInst() const 93{ 94 return isInst() && staticInst->opClass() == No_OpClass; 95} 96 97void 98MinorDynInst::reportData(std::ostream &os) const 99{ 100 if (isBubble()) 101 os << "-"; 102 else if (isFault()) 103 os << "F;" << id; 104 else 105 os << id; 106} 107 108std::ostream & 109operator <<(std::ostream &os, const MinorDynInst &inst) 110{ 111 os << inst.id << " pc: 0x" 112 << std::hex << inst.pc.instAddr() << std::dec << " ("; 113 114 if (inst.isFault()) 115 os << "fault: \"" << inst.fault->name() << '"'; 116 else if (inst.staticInst) 117 os << inst.staticInst->getName(); 118 else 119 os << "bubble"; 120 121 os << ')'; 122 123 return os; 124} 125 126/** Print a register in the form r<n>, f<n>, m<n>(<name>), z for integer, 127 * float, misc and zero registers given an 'architectural register number' */ 128static void 129printRegName(std::ostream &os, TheISA::RegIndex reg) 130{ 131 RegClass reg_class = regIdxToClass(reg); 132 133 switch (reg_class) 134 { 135 case MiscRegClass: 136 { 137 TheISA::RegIndex misc_reg = reg - TheISA::Misc_Reg_Base; 138 139 /* This is an ugly test because not all archs. have miscRegName */ 140#if THE_ISA == ARM_ISA 141 os << 'm' << misc_reg << '(' << TheISA::miscRegName[misc_reg] << 142 ')'; 143#else 144 os << 'n' << misc_reg; 145#endif 146 } 147 break; 148 case FloatRegClass: 149 os << 'f' << static_cast<unsigned int>(reg - TheISA::FP_Reg_Base); 150 break; 151 case IntRegClass: 152 if (reg == TheISA::ZeroReg) { 153 os << 'z'; 154 } else { 155 os << 'r' << static_cast<unsigned int>(reg); 156 } 157 break; 158 case CCRegClass: 159 os << 'c' << static_cast<unsigned int>(reg - TheISA::CC_Reg_Base); 160 } 161} 162 163void 164MinorDynInst::minorTraceInst(const Named &named_object) const 165{ 166 if (isFault()) { 167 MINORINST(&named_object, "id=F;%s addr=0x%x fault=\"%s\"\n", 168 id, pc.instAddr(), fault->name()); 169 } else { 170 unsigned int num_src_regs = staticInst->numSrcRegs(); 171 unsigned int num_dest_regs = staticInst->numDestRegs(); 172 173 std::ostringstream regs_str; 174 175 /* Format lists of src and dest registers for microops and 176 * 'full' instructions */ 177 if (!staticInst->isMacroop()) { 178 regs_str << " srcRegs="; 179 180 unsigned int src_reg = 0; 181 while (src_reg < num_src_regs) { 182 printRegName(regs_str, staticInst->srcRegIdx(src_reg)); 183 184 src_reg++; 185 if (src_reg != num_src_regs) 186 regs_str << ','; 187 } 188 189 regs_str << " destRegs="; 190 191 unsigned int dest_reg = 0; 192 while (dest_reg < num_dest_regs) { 193 printRegName(regs_str, staticInst->destRegIdx(dest_reg)); 194 195 dest_reg++; 196 if (dest_reg != num_dest_regs) 197 regs_str << ','; 198 } 199 200#if THE_ISA == ARM_ISA 201 regs_str << " extMachInst=" << std::hex << std::setw(16) 202 << std::setfill('0') << staticInst->machInst << std::dec; 203#endif 204 } 205 206 std::ostringstream flags; 207 staticInst->printFlags(flags, " "); 208 209 MINORINST(&named_object, "id=%s addr=0x%x inst=\"%s\" class=%s" 210 " flags=\"%s\"%s%s\n", 211 id, pc.instAddr(), 212 (staticInst->opClass() == No_OpClass ? 213 "(invalid)" : staticInst->disassemble(0,NULL)), 214 Enums::OpClassStrings[staticInst->opClass()], 215 flags.str(), 216 regs_str.str(), 217 (predictedTaken ? " predictedTaken" : "")); 218 } 219} 220 221MinorDynInst::~MinorDynInst() 222{ 223 if (traceData) 224 delete traceData; 225} 226 227} 228