cpu/minor/fetch2.cc

128     MinorDynInstPtr inst = branch.inst;
131     if (inst->isFault() || !inst->triedToPredict)
153         DPRINTF(Branch, "Unpredicted branch seen inst: %s\n", *inst);
154         branchPredictor.squash(inst->id.fetchSeqNum,
155             branch.target, true, inst->id.threadId);
158         branchPredictor.update(inst->id.fetchSeqNum,
159             inst->id.threadId);
163         DPRINTF(Branch, "Branch predicted correctly inst: %s\n", *inst);
164         branchPredictor.update(inst->id.fetchSeqNum,
165             inst->id.threadId);
169         DPRINTF(Branch, "Branch mis-predicted inst: %s\n", *inst);
170         branchPredictor.squash(inst->id.fetchSeqNum,
171             branch.target /* Not used */, false, inst->id.threadId);
174         branchPredictor.update(inst->id.fetchSeqNum,
175             inst->id.threadId);
179         DPRINTF(Branch, "Branch mis-predicted target inst: %s target: %s\n",
180             *inst, branch.target);
181         branchPredictor.squash(inst->id.fetchSeqNum,
182             branch.target, true, inst->id.threadId);
188 Fetch2::predictBranch(MinorDynInstPtr inst, BranchData &branch)
190     Fetch2ThreadInfo &thread = fetchInfo[inst->id.threadId];
191     TheISA::PCState inst_pc = inst->pc;
193     assert(!inst->predictedTaken);
196     if (inst->staticInst->isControl() ||
197         inst->staticInst->isSyscall())
200         inst->triedToPredict = true;
202         DPRINTF(Branch, "Trying to predict for inst: %s\n", *inst);
204         if (branchPredictor.predict(inst->staticInst,
205             inst->id.fetchSeqNum, inst_pc,
206             inst->id.threadId))
208             inst->predictedTaken = true;
209             inst->predictedTarget = inst_pc;
213         DPRINTF(Branch, "Not attempting prediction for inst: %s\n", *inst);
217     if (inst->predictedTaken) {
220         thread.expectedStreamSeqNum = inst->id.streamSeqNum;
223             inst->id.threadId,
224             inst->id.streamSeqNum, thread.predictionSeqNum + 1,
225             inst->predictedTarget, inst);
232         DPRINTF(Branch, "Branch predicted taken inst: %s target: %s"
234             *inst, inst->predictedTarget, thread.predictionSeqNum);
416                     DPRINTF(Fetch, "decoder inst %s\n", *dyn_inst);
418                     // Collect some basic inst class stats
434                         " pc: %s inst: %s\n",
523                  *  in case this is a line-wrapping inst. */