[llvm] 7e75f6f - [SelectionDAG] Use range-based for loops (NFC)

Kazu Hirata via llvm-commits llvm-commits at lists.llvm.org
Tue Feb 9 22:14:53 PST 2021


Author: Kazu Hirata
Date: 2021-02-09T22:14:30-08:00
New Revision: 7e75f6fc1d55d96c2abbde10f4aed619bb322956

URL: https://github.com/llvm/llvm-project/commit/7e75f6fc1d55d96c2abbde10f4aed619bb322956
DIFF: https://github.com/llvm/llvm-project/commit/7e75f6fc1d55d96c2abbde10f4aed619bb322956.diff

LOG: [SelectionDAG] Use range-based for loops (NFC)

Added: 
    

Modified: 
    llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
    llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.cpp
    llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
    llvm/lib/CodeGen/SelectionDAG/ScheduleDAGVLIW.cpp
    llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
    llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
    llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp

Removed: 
    


################################################################################
diff  --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 762f58427649..64f92734196f 100644
--- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -15975,12 +15975,9 @@ bool DAGCombiner::SliceUpLoad(SDNode *N) {
 
   // Prepare the argument for the new token factor for all the slices.
   SmallVector<SDValue, 8> ArgChains;
-  for (SmallVectorImpl<LoadedSlice>::const_iterator
-           LSIt = LoadedSlices.begin(),
-           LSItEnd = LoadedSlices.end();
-       LSIt != LSItEnd; ++LSIt) {
-    SDValue SliceInst = LSIt->loadSlice();
-    CombineTo(LSIt->Inst, SliceInst, true);
+  for (const LoadedSlice &LS : LoadedSlices) {
+    SDValue SliceInst = LS.loadSlice();
+    CombineTo(LS.Inst, SliceInst, true);
     if (SliceInst.getOpcode() != ISD::LOAD)
       SliceInst = SliceInst.getOperand(0);
     assert(SliceInst->getOpcode() == ISD::LOAD &&

diff  --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.cpp
index a59f03854775..05a974af3b55 100644
--- a/llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.cpp
@@ -182,9 +182,8 @@ void DAGTypeLegalizer::PerformExpensiveChecks() {
   // Checked that NewNodes are only used by other NewNodes.
   for (unsigned i = 0, e = NewNodes.size(); i != e; ++i) {
     SDNode *N = NewNodes[i];
-    for (SDNode::use_iterator UI = N->use_begin(), UE = N->use_end();
-         UI != UE; ++UI)
-      assert(UI->getNodeId() == NewNode && "NewNode used by non-NewNode!");
+    for (SDNode *U : N->uses())
+      assert(U->getNodeId() == NewNode && "NewNode used by non-NewNode!");
   }
 #endif
 }
@@ -396,9 +395,7 @@ bool DAGTypeLegalizer::run() {
     assert(N->getNodeId() == ReadyToProcess && "Node ID recalculated?");
     N->setNodeId(Processed);
 
-    for (SDNode::use_iterator UI = N->use_begin(), E = N->use_end();
-         UI != E; ++UI) {
-      SDNode *User = *UI;
+    for (SDNode *User : N->uses()) {
       int NodeId = User->getNodeId();
 
       // This node has two options: it can either be a new node or its Node ID

diff  --git a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
index debfdda90e1e..277a32283b0d 100644
--- a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
@@ -790,20 +790,21 @@ ProcessSourceNode(SDNode *N, SelectionDAG *DAG, InstrEmitter &Emitter,
 void ScheduleDAGSDNodes::
 EmitPhysRegCopy(SUnit *SU, DenseMap<SUnit*, Register> &VRBaseMap,
                 MachineBasicBlock::iterator InsertPos) {
-  for (SUnit::const_pred_iterator I = SU->Preds.begin(), E = SU->Preds.end();
-       I != E; ++I) {
-    if (I->isCtrl()) continue;  // ignore chain preds
-    if (I->getSUnit()->CopyDstRC) {
+  for (const SDep &Pred : SU->Preds) {
+    if (Pred.isCtrl())
+      continue; // ignore chain preds
+    if (Pred.getSUnit()->CopyDstRC) {
       // Copy to physical register.
-      DenseMap<SUnit*, Register>::iterator VRI = VRBaseMap.find(I->getSUnit());
+      DenseMap<SUnit *, Register>::iterator VRI =
+          VRBaseMap.find(Pred.getSUnit());
       assert(VRI != VRBaseMap.end() && "Node emitted out of order - late");
       // Find the destination physical register.
       Register Reg;
-      for (SUnit::const_succ_iterator II = SU->Succs.begin(),
-             EE = SU->Succs.end(); II != EE; ++II) {
-        if (II->isCtrl()) continue;  // ignore chain preds
-        if (II->getReg()) {
-          Reg = II->getReg();
+      for (const SDep &Succ : SU->Succs) {
+        if (Succ.isCtrl())
+          continue; // ignore chain preds
+        if (Succ.getReg()) {
+          Reg = Succ.getReg();
           break;
         }
       }
@@ -811,13 +812,13 @@ EmitPhysRegCopy(SUnit *SU, DenseMap<SUnit*, Register> &VRBaseMap,
         .addReg(VRI->second);
     } else {
       // Copy from physical register.
-      assert(I->getReg() && "Unknown physical register!");
+      assert(Pred.getReg() && "Unknown physical register!");
       Register VRBase = MRI.createVirtualRegister(SU->CopyDstRC);
       bool isNew = VRBaseMap.insert(std::make_pair(SU, VRBase)).second;
       (void)isNew; // Silence compiler warning.
       assert(isNew && "Node emitted out of order - early");
       BuildMI(*BB, InsertPos, DebugLoc(), TII->get(TargetOpcode::COPY), VRBase)
-        .addReg(I->getReg());
+          .addReg(Pred.getReg());
     }
     break;
   }

diff  --git a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGVLIW.cpp b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGVLIW.cpp
index e7bac73678a7..540a6e3efbe1 100644
--- a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGVLIW.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGVLIW.cpp
@@ -136,12 +136,11 @@ void ScheduleDAGVLIW::releaseSucc(SUnit *SU, const SDep &D) {
 
 void ScheduleDAGVLIW::releaseSuccessors(SUnit *SU) {
   // Top down: release successors.
-  for (SUnit::succ_iterator I = SU->Succs.begin(), E = SU->Succs.end();
-       I != E; ++I) {
-    assert(!I->isAssignedRegDep() &&
+  for (SDep &Succ : SU->Succs) {
+    assert(!Succ.isAssignedRegDep() &&
            "The list-td scheduler doesn't yet support physreg dependencies!");
 
-    releaseSucc(SU, *I);
+    releaseSucc(SU, Succ);
   }
 }
 

diff  --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index f01b5b3092c6..cf1eee48e6b7 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -932,12 +932,12 @@ static void VerifySDNode(SDNode *N) {
     assert(N->getNumOperands() == N->getValueType(0).getVectorNumElements() &&
            "Wrong number of operands!");
     EVT EltVT = N->getValueType(0).getVectorElementType();
-    for (SDNode::op_iterator I = N->op_begin(), E = N->op_end(); I != E; ++I) {
-      assert((I->getValueType() == EltVT ||
-             (EltVT.isInteger() && I->getValueType().isInteger() &&
-              EltVT.bitsLE(I->getValueType()))) &&
-            "Wrong operand type!");
-      assert(I->getValueType() == N->getOperand(0).getValueType() &&
+    for (const SDUse &Op : N->ops()) {
+      assert((Op.getValueType() == EltVT ||
+              (EltVT.isInteger() && Op.getValueType().isInteger() &&
+               EltVT.bitsLE(Op.getValueType()))) &&
+             "Wrong operand type!");
+      assert(Op.getValueType() == N->getOperand(0).getValueType() &&
              "Operands must all have the same type");
     }
     break;
@@ -6844,8 +6844,8 @@ SDValue SelectionDAG::getMergeValues(ArrayRef<SDValue> Ops, const SDLoc &dl) {
 
   SmallVector<EVT, 4> VTs;
   VTs.reserve(Ops.size());
-  for (unsigned i = 0; i < Ops.size(); ++i)
-    VTs.push_back(Ops[i].getValueType());
+  for (const SDValue &Op : Ops)
+    VTs.push_back(Op.getValueType());
   return getNode(ISD::MERGE_VALUES, dl, getVTList(VTs), Ops);
 }
 
@@ -8970,9 +8970,7 @@ unsigned SelectionDAG::AssignTopologicalOrder() {
     checkForCycles(N, this);
     // N is in sorted position, so all its uses have one less operand
     // that needs to be sorted.
-    for (SDNode::use_iterator UI = N->use_begin(), UE = N->use_end();
-         UI != UE; ++UI) {
-      SDNode *P = *UI;
+    for (SDNode *P : N->uses()) {
       unsigned Degree = P->getNodeId();
       assert(Degree != 0 && "Invalid node degree");
       --Degree;

diff  --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 5c94a83f719c..4fbfe45283ea 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -6664,9 +6664,8 @@ void SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I,
     SmallVector<const Value *, 4> Allocas;
     getUnderlyingObjects(ObjectPtr, Allocas);
 
-    for (SmallVectorImpl<const Value*>::iterator Object = Allocas.begin(),
-           E = Allocas.end(); Object != E; ++Object) {
-      const AllocaInst *LifetimeObject = dyn_cast_or_null<AllocaInst>(*Object);
+    for (const Value *Alloca : Allocas) {
+      const AllocaInst *LifetimeObject = dyn_cast_or_null<AllocaInst>(Alloca);
 
       // Could not find an Alloca.
       if (!LifetimeObject)

diff  --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 7bae5048fc0e..c58452c2235d 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -1419,9 +1419,8 @@ void SelectionDAGISel::SelectAllBasicBlocks(const Function &Fn) {
   for (const BasicBlock *LLVMBB : RPOT) {
     if (OptLevel != CodeGenOpt::None) {
       bool AllPredsVisited = true;
-      for (const_pred_iterator PI = pred_begin(LLVMBB), PE = pred_end(LLVMBB);
-           PI != PE; ++PI) {
-        if (!FuncInfo->VisitedBBs.count(*PI)) {
+      for (const BasicBlock *Pred : predecessors(LLVMBB)) {
+        if (!FuncInfo->VisitedBBs.count(Pred)) {
           AllPredsVisited = false;
           break;
         }


        


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