cpu/pred/tage_base.cc

256 TAGEBase::ctrUpdate(T & ctr, bool taken, int nbits)
259     if (taken) {
269 template void TAGEBase::ctrUpdate(int8_t & ctr, bool taken, int nbits);
270 template void TAGEBase::ctrUpdate(int & ctr, bool taken, int nbits);
297 TAGEBase::baseUpdate(Addr pc, bool taken, BranchInfo* bi)
301     if (taken) {
424         DPRINTF(Tage, "Predict for %lx: taken?:%d, tagePred:%d, altPred:%d\n",
433 TAGEBase::adjustAlloc(bool & alloc, bool taken, bool pred_taken)
439 TAGEBase::handleAllocAndUReset(bool alloc, bool taken, BranchInfo* bi,
473                 gtable[i][bi->tableIndices[i]].ctr = (taken) ? 0 : -1;
509 TAGEBase::condBranchUpdate(ThreadID tid, Addr branch_pc, bool taken,
514     bool alloc = (bi->tagePred != taken) && (bi->hitBank < nHistoryTables);
517         adjustAlloc(alloc, taken, pred);
527             if (bi->longestMatchPred == taken) {
535                     bi->altTaken == taken, useAltOnNaBits);
541         adjustAlloc(alloc, taken, pred);
544     handleAllocAndUReset(alloc, taken, bi, nrand);
546     handleTAGEUpdate(branch_pc, taken, bi);
550 TAGEBase::handleTAGEUpdate(Addr branch_pc, bool taken, BranchInfo* bi)
555         ctrUpdate(gtable[bi->hitBank][bi->hitBankIndex].ctr, taken,
561                 ctrUpdate(gtable[bi->altBank][bi->altBankIndex].ctr, taken,
568                 baseUpdate(branch_pc, taken, bi);
575                               bi->tagePred == taken, tagTableUBits);
578         baseUpdate(branch_pc, taken, bi);
583 TAGEBase::updateHistories(ThreadID tid, Addr branch_pc, bool taken,
595     updateGHist(tHist.gHist, taken, tHist.globalHistory, tHist.ptGhist);
616     DPRINTF(Tage, "Updating global histories with branch:%lx; taken?:%d, "
617             "path Hist: %x; pointer:%d\n", branch_pc, taken, tHist.pathHist,
624 TAGEBase::squash(ThreadID tid, bool taken, TAGEBase::BranchInfo *bi,
633     DPRINTF(Tage, "Restoring branch info: %lx; taken? %d; PathHistory:%x, "
634             "pointer:%d\n", bi->branchPC,taken, bi->pathHist, bi->ptGhist);
638     tHist.gHist[0] = (taken ? 1 : 0);
657 TAGEBase::updateStats(bool taken, BranchInfo* bi)
659     if (taken == bi->tagePred) {
673             if (bi->altTaken == taken) {
688             if (bi->longestMatchPred == taken) {