[llvm] Use range constructors of *Set (NFC) (#137552)

Author: kazutakahirata

llvm/lib/Analysis/MemorySSAUpdater.cpp

@@ -679,8 +679,8 @@ void MemorySSAUpdater::updateForClonedLoop(const LoopBlocksRPO &LoopBlocks,
   auto FixPhiIncomingValues = [&](MemoryPhi *Phi, MemoryPhi *NewPhi) {
     assert(Phi && NewPhi && "Invalid Phi nodes.");
     BasicBlock *NewPhiBB = NewPhi->getBlock();
-    SmallPtrSet<BasicBlock *, 4> NewPhiBBPreds(pred_begin(NewPhiBB),
-                                               pred_end(NewPhiBB));
+    SmallPtrSet<BasicBlock *, 4> NewPhiBBPreds(llvm::from_range,
+                                               predecessors(NewPhiBB));
     for (unsigned It = 0, E = Phi->getNumIncomingValues(); It < E; ++It) {
       MemoryAccess *IncomingAccess = Phi->getIncomingValue(It);
       BasicBlock *IncBB = Phi->getIncomingBlock(It);

llvm/lib/CodeGen/MachineBlockPlacement.cpp

@@ -1024,8 +1024,8 @@ bool MachineBlockPlacement::isTrellis(
   if (BB->succ_size() != 2 || ViableSuccs.size() != 2)
     return false;
 
-  SmallPtrSet<const MachineBasicBlock *, 2> Successors(BB->succ_begin(),
-                                                       BB->succ_end());
+  SmallPtrSet<const MachineBasicBlock *, 2> Successors(llvm::from_range,
+                                                       BB->successors());
   // To avoid reviewing the same predecessors twice.
   SmallPtrSet<const MachineBasicBlock *, 8> SeenPreds;
 
@@ -1117,8 +1117,8 @@ MachineBlockPlacement::getBestTrellisSuccessor(
     const BlockFilterSet *BlockFilter) {
 
   BlockAndTailDupResult Result = {nullptr, false};
-  SmallPtrSet<const MachineBasicBlock *, 4> Successors(BB->succ_begin(),
-                                                       BB->succ_end());
+  SmallPtrSet<const MachineBasicBlock *, 4> Successors(llvm::from_range,
+                                                       BB->successors());
 
   // We assume size 2 because it's common. For general n, we would have to do
   // the Hungarian algorithm, but it's not worth the complexity because more
@@ -1209,8 +1209,8 @@ bool MachineBlockPlacement::canTailDuplicateUnplacedPreds(
   unsigned int NumDup = 0;
 
   // For CFG checking.
-  SmallPtrSet<const MachineBasicBlock *, 4> Successors(BB->succ_begin(),
-                                                       BB->succ_end());
+  SmallPtrSet<const MachineBasicBlock *, 4> Successors(llvm::from_range,
+                                                       BB->successors());
   for (MachineBasicBlock *Pred : Succ->predecessors()) {
     // Make sure all unplaced and unfiltered predecessors can be
     // tail-duplicated into.

llvm/lib/CodeGen/TailDuplicator.cpp

@@ -751,8 +751,8 @@ bool TailDuplicator::canCompletelyDuplicateBB(MachineBasicBlock &BB) {
 bool TailDuplicator::duplicateSimpleBB(
     MachineBasicBlock *TailBB, SmallVectorImpl<MachineBasicBlock *> &TDBBs,
     const DenseSet<Register> &UsedByPhi) {
-  SmallPtrSet<MachineBasicBlock *, 8> Succs(TailBB->succ_begin(),
-                                            TailBB->succ_end());
+  SmallPtrSet<MachineBasicBlock *, 8> Succs(llvm::from_range,
+                                            TailBB->successors());
   SmallVector<MachineBasicBlock *, 8> Preds(TailBB->predecessors());
   bool Changed = false;
   for (MachineBasicBlock *PredBB : Preds) {

llvm/lib/CodeGen/TargetInstrInfo.cpp

@@ -1043,7 +1043,7 @@ bool TargetInstrInfo::getAccumulatorReassociationPatterns(
 
   // Check if the MBB this instruction is a part of contains any other chains.
   // If so, don't apply it.
-  SmallSet<Register, 32> ReductionChain(Chain.begin(), Chain.end());
+  SmallSet<Register, 32> ReductionChain(llvm::from_range, Chain);
   for (const auto &I : MBB) {
     if (I.getOpcode() == Opc &&
         !ReductionChain.contains(I.getOperand(0).getReg()))

llvm/lib/CodeGen/UnreachableBlockElim.cpp

@@ -185,8 +185,8 @@ bool UnreachableMachineBlockElim::run(MachineFunction &F) {
   // Cleanup PHI nodes.
   for (MachineBasicBlock &BB : F) {
     // Prune unneeded PHI entries.
-    SmallPtrSet<MachineBasicBlock*, 8> preds(BB.pred_begin(),
-                                             BB.pred_end());
+    SmallPtrSet<MachineBasicBlock *, 8> preds(llvm::from_range,
+                                              BB.predecessors());
     for (MachineInstr &Phi : make_early_inc_range(BB.phis())) {
       for (unsigned i = Phi.getNumOperands() - 1; i >= 2; i -= 2) {
         if (!preds.count(Phi.getOperand(i).getMBB())) {

llvm/lib/Target/Hexagon/HexagonExpandCondsets.cpp

@@ -382,7 +382,7 @@ void HexagonExpandCondsets::updateDeadsInRange(Register Reg, LaneBitmask LM,
         return true;
     }
     MachineBasicBlock *Entry = &Dest->getParent()->front();
-    SetVector<MachineBasicBlock*> Work(Dest->pred_begin(), Dest->pred_end());
+    SetVector<MachineBasicBlock *> Work(llvm::from_range, Dest->predecessors());
     for (unsigned i = 0; i < Work.size(); ++i) {
       MachineBasicBlock *B = Work[i];
       if (Defs.count(B))

llvm/lib/Transforms/Scalar/ADCE.cpp

@@ -485,10 +485,8 @@ void AggressiveDeadCodeElimination::markLiveBranchesFromControlDependences() {
   // which currently have dead terminators that are control
   // dependence sources of a block which is in NewLiveBlocks.
 
-  const SmallPtrSet<BasicBlock *, 16> BWDT{
-      BlocksWithDeadTerminators.begin(),
-      BlocksWithDeadTerminators.end()
-  };
+  const SmallPtrSet<BasicBlock *, 16> BWDT(llvm::from_range,
+                                           BlocksWithDeadTerminators);
   SmallVector<BasicBlock *, 32> IDFBlocks;
   ReverseIDFCalculator IDFs(PDT);
   IDFs.setDefiningBlocks(NewLiveBlocks);

llvm/lib/Transforms/Utils/BasicBlockUtils.cpp

@@ -249,8 +249,8 @@ bool llvm::MergeBlockIntoPredecessor(BasicBlock *BB, DomTreeUpdater *DTU,
     assert(!DT && "cannot use both DT and DTU for updates");
     // To avoid processing the same predecessor more than once.
     SmallPtrSet<BasicBlock *, 8> SeenSuccs;
-    SmallPtrSet<BasicBlock *, 2> SuccsOfPredBB(succ_begin(PredBB),
-                                               succ_end(PredBB));
+    SmallPtrSet<BasicBlock *, 2> SuccsOfPredBB(llvm::from_range,
+                                               successors(PredBB));
     Updates.reserve(Updates.size() + 2 * succ_size(BB) + 1);
     // Add insert edges first. Experimentally, for the particular case of two
     // blocks that can be merged, with a single successor and single predecessor

llvm/lib/Transforms/Utils/FlattenCFG.cpp

@@ -144,7 +144,7 @@ bool FlattenCFGOpt::FlattenParallelAndOr(BasicBlock *BB, IRBuilder<> &Builder) {
   int Idx = -1;
 
   // Check predecessors of \param BB.
-  SmallPtrSet<BasicBlock *, 16> Preds(pred_begin(BB), pred_end(BB));
+  SmallPtrSet<BasicBlock *, 16> Preds(llvm::from_range, predecessors(BB));
   for (BasicBlock *Pred : Preds) {
     BranchInst *PBI = dyn_cast<BranchInst>(Pred->getTerminator());
 

llvm/lib/Transforms/Utils/Local.cpp

@@ -1158,7 +1158,7 @@ bool llvm::TryToSimplifyUncondBranchFromEmptyBlock(BasicBlock *BB,
   if (BB == Succ)
     return false;
 
-  SmallPtrSet<BasicBlock *, 16> BBPreds(pred_begin(BB), pred_end(BB));
+  SmallPtrSet<BasicBlock *, 16> BBPreds(llvm::from_range, predecessors(BB));
 
   // The single common predecessor of BB and Succ when BB cannot be killed
   BasicBlock *CommonPred = nullptr;
@@ -1293,7 +1293,8 @@ bool llvm::TryToSimplifyUncondBranchFromEmptyBlock(BasicBlock *BB,
     // All predecessors of BB (except the common predecessor) will be moved to
     // Succ.
     Updates.reserve(Updates.size() + 2 * pred_size(BB) + 1);
-    SmallPtrSet<BasicBlock *, 16> SuccPreds(pred_begin(Succ), pred_end(Succ));
+    SmallPtrSet<BasicBlock *, 16> SuccPreds(llvm::from_range,
+                                            predecessors(Succ));
     for (auto *PredOfBB : predecessors(BB)) {
       // Do not modify those common predecessors of BB and Succ
       if (!SuccPreds.contains(PredOfBB))

llvm/lib/Transforms/Utils/SimplifyCFG.cpp

@@ -367,7 +367,7 @@ safeToMergeTerminators(Instruction *SI1, Instruction *SI2,
   BasicBlock *SI1BB = SI1->getParent();
   BasicBlock *SI2BB = SI2->getParent();
 
-  SmallPtrSet<BasicBlock *, 16> SI1Succs(succ_begin(SI1BB), succ_end(SI1BB));
+  SmallPtrSet<BasicBlock *, 16> SI1Succs(llvm::from_range, successors(SI1BB));
   bool Fail = false;
   for (BasicBlock *Succ : successors(SI2BB)) {
     if (!SI1Succs.count(Succ))
@@ -1332,7 +1332,7 @@ bool SimplifyCFGOpt::performValueComparisonIntoPredecessorFolding(
   // successors.
   SmallPtrSet<BasicBlock *, 2> SuccsOfPred;
   if (DTU) {
-    SuccsOfPred = {succ_begin(Pred), succ_end(Pred)};
+    SuccsOfPred = {llvm::from_range, successors(Pred)};
     Updates.reserve(Updates.size() + NewSuccessors.size());
   }
   for (const std::pair<BasicBlock *, int /*Num*/> &NewSuccessor :

llvm/lib/Transforms/Vectorize/LoopVectorize.cpp

@@ -8425,7 +8425,7 @@ void VPRecipeBuilder::createBlockInMask(BasicBlock *BB) {
   VPValue *BlockMask = nullptr;
   // This is the block mask. We OR all unique incoming edges.
   for (auto *Predecessor :
-       SetVector<BasicBlock *>(pred_begin(BB), pred_end(BB))) {
+       SetVector<BasicBlock *>(llvm::from_range, predecessors(BB))) {
     VPValue *EdgeMask = createEdgeMask(Predecessor, BB);
     if (!EdgeMask) { // Mask of predecessor is all-one so mask of block is too.
       BlockMaskCache[BB] = EdgeMask;

llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp

@@ -10107,7 +10107,7 @@ void BoUpSLP::buildTreeRec(ArrayRef<Value *> VL, unsigned Depth,
 
   BlockScheduling &BS = *BSRef;
 
-  SetVector<Value *> UniqueValues(VL.begin(), VL.end());
+  SetVector<Value *> UniqueValues(llvm::from_range, VL);
   std::optional<ScheduleBundle *> BundlePtr =
       BS.tryScheduleBundle(UniqueValues.getArrayRef(), this, S);
 #ifdef EXPENSIVE_CHECKS

llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp

@@ -597,7 +597,7 @@ createScalarIVSteps(VPlan &Plan, InductionDescriptor::InductionKind Kind,
 }
 
 static SmallVector<VPUser *> collectUsersRecursively(VPValue *V) {
-  SetVector<VPUser *> Users(V->user_begin(), V->user_end());
+  SetVector<VPUser *> Users(llvm::from_range, V->users());
   for (unsigned I = 0; I != Users.size(); ++I) {
     VPRecipeBase *Cur = cast<VPRecipeBase>(Users[I]);
     if (isa<VPHeaderPHIRecipe>(Cur))