diff options
Diffstat (limited to 'contrib/llvm/lib/CodeGen/MachineTraceMetrics.cpp')
| -rw-r--r-- | contrib/llvm/lib/CodeGen/MachineTraceMetrics.cpp | 47 |
1 files changed, 24 insertions, 23 deletions
diff --git a/contrib/llvm/lib/CodeGen/MachineTraceMetrics.cpp b/contrib/llvm/lib/CodeGen/MachineTraceMetrics.cpp index f9adba0..9404c68 100644 --- a/contrib/llvm/lib/CodeGen/MachineTraceMetrics.cpp +++ b/contrib/llvm/lib/CodeGen/MachineTraceMetrics.cpp @@ -509,18 +509,17 @@ MachineTraceMetrics::Ensemble::invalidate(const MachineBasicBlock *BadMBB) { << " height.\n"); // Find any MBB predecessors that have MBB as their preferred successor. // They are the only ones that need to be invalidated. - for (MachineBasicBlock::const_pred_iterator - I = MBB->pred_begin(), E = MBB->pred_end(); I != E; ++I) { - TraceBlockInfo &TBI = BlockInfo[(*I)->getNumber()]; + for (const MachineBasicBlock *Pred : MBB->predecessors()) { + TraceBlockInfo &TBI = BlockInfo[Pred->getNumber()]; if (!TBI.hasValidHeight()) continue; if (TBI.Succ == MBB) { TBI.invalidateHeight(); - WorkList.push_back(*I); + WorkList.push_back(Pred); continue; } // Verify that TBI.Succ is actually a *I successor. - assert((!TBI.Succ || (*I)->isSuccessor(TBI.Succ)) && "CFG changed"); + assert((!TBI.Succ || Pred->isSuccessor(TBI.Succ)) && "CFG changed"); } } while (!WorkList.empty()); } @@ -535,18 +534,17 @@ MachineTraceMetrics::Ensemble::invalidate(const MachineBasicBlock *BadMBB) { << " depth.\n"); // Find any MBB successors that have MBB as their preferred predecessor. // They are the only ones that need to be invalidated. - for (MachineBasicBlock::const_succ_iterator - I = MBB->succ_begin(), E = MBB->succ_end(); I != E; ++I) { - TraceBlockInfo &TBI = BlockInfo[(*I)->getNumber()]; + for (const MachineBasicBlock *Succ : MBB->successors()) { + TraceBlockInfo &TBI = BlockInfo[Succ->getNumber()]; if (!TBI.hasValidDepth()) continue; if (TBI.Pred == MBB) { TBI.invalidateDepth(); - WorkList.push_back(*I); + WorkList.push_back(Succ); continue; } // Verify that TBI.Pred is actually a *I predecessor. - assert((!TBI.Pred || (*I)->isPredecessor(TBI.Pred)) && "CFG changed"); + assert((!TBI.Pred || Succ->isPredecessor(TBI.Pred)) && "CFG changed"); } } while (!WorkList.empty()); } @@ -998,8 +996,7 @@ computeInstrHeights(const MachineBasicBlock *MBB) { // MBB is the highest precomputed block in the trace. if (MBB) { TraceBlockInfo &TBI = BlockInfo[MBB->getNumber()]; - for (unsigned i = 0, e = TBI.LiveIns.size(); i != e; ++i) { - LiveInReg LI = TBI.LiveIns[i]; + for (LiveInReg &LI : TBI.LiveIns) { if (TargetRegisterInfo::isVirtualRegister(LI.Reg)) { // For virtual registers, the def latency is included. unsigned &Height = Heights[MTM.MRI->getVRegDef(LI.Reg)]; @@ -1131,11 +1128,16 @@ computeInstrHeights(const MachineBasicBlock *MBB) { MachineTraceMetrics::Trace MachineTraceMetrics::Ensemble::getTrace(const MachineBasicBlock *MBB) { - // FIXME: Check cache tags, recompute as needed. - computeTrace(MBB); - computeInstrDepths(MBB); - computeInstrHeights(MBB); - return Trace(*this, BlockInfo[MBB->getNumber()]); + TraceBlockInfo &TBI = BlockInfo[MBB->getNumber()]; + + if (!TBI.hasValidDepth() || !TBI.hasValidHeight()) + computeTrace(MBB); + if (!TBI.HasValidInstrDepths) + computeInstrDepths(MBB); + if (!TBI.HasValidInstrHeights) + computeInstrHeights(MBB); + + return Trace(*this, TBI); } unsigned @@ -1204,8 +1206,7 @@ unsigned MachineTraceMetrics::Trace::getResourceLength( unsigned ResourceIdx) ->unsigned { unsigned Cycles = 0; - for (unsigned I = 0; I != Instrs.size(); ++I) { - const MCSchedClassDesc *SC = Instrs[I]; + for (const MCSchedClassDesc *SC : Instrs) { if (!SC->isValid()) continue; for (TargetSchedModel::ProcResIter @@ -1223,8 +1224,8 @@ unsigned MachineTraceMetrics::Trace::getResourceLength( for (unsigned K = 0; K != PRDepths.size(); ++K) { unsigned PRCycles = PRDepths[K] + PRHeights[K]; - for (unsigned I = 0; I != Extrablocks.size(); ++I) - PRCycles += TE.MTM.getProcResourceCycles(Extrablocks[I]->getNumber())[K]; + for (const MachineBasicBlock *MBB : Extrablocks) + PRCycles += TE.MTM.getProcResourceCycles(MBB->getNumber())[K]; PRCycles += extraCycles(ExtraInstrs, K); PRCycles -= extraCycles(RemoveInstrs, K); PRMax = std::max(PRMax, PRCycles); @@ -1235,8 +1236,8 @@ unsigned MachineTraceMetrics::Trace::getResourceLength( // Instrs: #instructions in current trace outside current block. unsigned Instrs = TBI.InstrDepth + TBI.InstrHeight; // Add instruction count from the extra blocks. - for (unsigned i = 0, e = Extrablocks.size(); i != e; ++i) - Instrs += TE.MTM.getResources(Extrablocks[i])->InstrCount; + for (const MachineBasicBlock *MBB : Extrablocks) + Instrs += TE.MTM.getResources(MBB)->InstrCount; Instrs += ExtraInstrs.size(); Instrs -= RemoveInstrs.size(); if (unsigned IW = TE.MTM.SchedModel.getIssueWidth()) |
