cpu/pred/tage_sc_l_64KB.cc

85         BranchInfo* bi, int hitBank, int altBank) const
87     return (bi->predBeforeSC + (((hitBank+1)/4)<<4) + (bi->highConf<<1) +
88             (bi->lowConf <<2) + ((altBank!=0)<<3) +
94         BranchInfo* bi, int & lsum, int64_t pathHist)
100         (branch_pc << 1) + bi->predBeforeSC, sh->bwHist, bwm,
166         bool taken, BranchInfo* bi, int64_t phist)
171     gUpdate((pc << 1) + bi->predBeforeSC, taken, sh->bwHist, bwm,
172             bwgehl, bwnb, logBwnb, wbw, bi);
175             pgehl, pnb, logPnb, wp, bi);
178             lgehl, lnb, logLnb, wl, bi);
181             sgehl, snb, logSnb, ws, bi);
184             tgehl, tnb, logTnb, wt, bi);
187             imgehl, imnb, logImnb, wim, bi);
190             igehl, inb, logInb, wi, bi);
217     bool alloc, bool taken, TAGEBase::BranchInfo* bi, int nrand)
227     for (int I = calcDep(bi); I < nHistoryTables; I += 2) {
232                 if (gtable[i][bi->tableIndices[i]].u == 0) {
233                     int8_t ctr = gtable[i][bi->tableIndices[i]].ctr;
235                         gtable[i][bi->tableIndices[i]].tag = bi->tableTags[i];
236                         gtable[i][bi->tableIndices[i]].ctr = taken ? 0 : -1;
242                         if (gtable[i][bi->tableIndices[i]].ctr > 0) {
243                             gtable[i][bi->tableIndices[i]].ctr--;
245                             gtable[i][bi->tableIndices[i]].ctr++;
265                                  TAGEBase::BranchInfo* bi)
267     if (bi->hitBank > 0) {
268         if (abs (2 * gtable[bi->hitBank][bi->hitBankIndex].ctr + 1) == 1) {
269             if (bi->longestMatchPred != taken) {
271                 if (bi->altBank > 0) {
272                     ctrUpdate(gtable[bi->altBank][bi->altBankIndex].ctr, taken,
275                 if (bi->altBank == 0){
276                     baseUpdate(branch_pc, taken, bi);
281         ctrUpdate(gtable[bi->hitBank][bi->hitBankIndex].ctr, taken,
285         if (abs (2 * gtable[bi->hitBank][bi->hitBankIndex].ctr + 1) == 1) {
286             gtable[bi->hitBank][bi->hitBankIndex].u = 0;
289         if (bi->altTaken == taken) {
290             if (bi->altBank > 0) {
291                 int8_t ctr = gtable[bi->altBank][bi->altBankIndex].ctr;
293                     if (gtable[bi->hitBank][bi->hitBankIndex].u == 1) {
294                         if (bi->longestMatchPred == taken) {
295                           gtable[bi->hitBank][bi->hitBankIndex].u = 0;
302         baseUpdate(branch_pc, taken, bi);
305     if ((bi->longestMatchPred != bi->altTaken) &&
306         (bi->longestMatchPred == taken) &&
307         (gtable[bi->hitBank][bi->hitBankIndex].u < (1 << tagTableUBits) -1)) {
308             gtable[bi->hitBank][bi->hitBankIndex].u++;