[llvm] Remove redundant control flow statements (NFC) (#115831)

Identified with readability-redundant-control-flow.

Author: kazutakahirata

llvm/include/llvm/CodeGen/MachineFunction.h

@@ -468,7 +468,6 @@ class LLVM_ABI MachineFunction {
     /// Callback before changing MCInstrDesc. This should not modify the MI
     /// directly.
     virtual void MF_HandleChangeDesc(MachineInstr &MI, const MCInstrDesc &TID) {
-      return;
     }
   };
 

llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp

@@ -3551,7 +3551,6 @@ void IRTranslator::translateDbgValueRecord(Value *V, bool HasArgList,
     // pretty baked in right now.
     MIRBuilder.buildDirectDbgValue(Reg, Variable, Expression);
   }
-  return;
 }
 
 void IRTranslator::translateDbgDeclareRecord(Value *Address, bool HasArgList,

llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

@@ -1223,7 +1223,6 @@ void SelectionDAGBuilder::handleDebugDeclare(Value *Address,
                         << " (could not emit func-arg dbg_value)\n");
     }
   }
-  return;
 }
 
 void SelectionDAGBuilder::visitDbgInfo(const Instruction &I) {

llvm/lib/IR/AsmWriter.cpp

@@ -4679,7 +4679,6 @@ void AssemblyWriter::printDbgMarker(const DbgMarker &Marker) {
   Out << "  DbgMarker -> { ";
   printInstruction(*Marker.MarkedInstr);
   Out << " }";
-  return;
 }
 
 void AssemblyWriter::printDbgRecord(const DbgRecord &DR) {

llvm/lib/IR/BasicBlock.cpp

@@ -798,8 +798,6 @@ void BasicBlock::spliceDebugInfoEmptyBlock(BasicBlock::iterator Dest,
     return;
 
   createMarker(Dest)->absorbDebugValues(*First->DebugMarker, InsertAtHead);
-
-  return;
 }
 
 void BasicBlock::spliceDebugInfo(BasicBlock::iterator Dest, BasicBlock *Src,

llvm/lib/Object/WasmObjectFile.cpp

@@ -1242,7 +1242,6 @@ Error WasmObjectFile::parseTypeSection(ReadContext &Ctx) {
     while (ParamCount--) {
       uint32_t ParamType = readUint8(Ctx);
       Sig.Params.push_back(parseValType(Ctx, ParamType));
-      continue;
     }
     uint32_t ReturnCount = readVaruint32(Ctx);
     while (ReturnCount--) {

llvm/lib/ObjectYAML/DWARFEmitter.cpp

@@ -745,7 +745,6 @@ void emitDebugNamesHeader(raw_ostream &OS, bool IsLittleEndian,
   writeInteger(AbbrevSize, OS, IsLittleEndian);
   writeInteger(uint32_t(AugmentationString.size()), OS, IsLittleEndian);
   OS.write(AugmentationString.data(), AugmentationString.size());
-  return;
 }
 
 /// Emits the abbreviations for a DebugNames section.

llvm/lib/Passes/StandardInstrumentations.cpp

@@ -2547,7 +2547,6 @@ void DroppedVariableStats::runBeforePass(StringRef PassID, Any IR) {
     return this->runOnModule(M, true);
   if (auto *F = unwrapIR<Function>(IR))
     return this->runOnFunction(F, true);
-  return;
 }
 
 void DroppedVariableStats::runOnFunction(const Function *F, bool Before) {
@@ -2661,7 +2660,6 @@ void DroppedVariableStats::runAfterPass(StringRef PassID, Any IR,
 
   DebugVariablesStack.pop_back();
   InlinedAts.pop_back();
-  return;
 }
 
 bool DroppedVariableStats::isScopeChildOfOrEqualTo(DIScope *Scope,

llvm/lib/Support/APFloat.cpp

@@ -3947,7 +3947,6 @@ void IEEEFloat::initFromFloat8E8M0FNUAPInt(const APInt &api) {
   // Handle fcNormal...
   category = fcNormal;
   exponent = myexponent - 127; // 127 is bias
-  return;
 }
 template <const fltSemantics &S>
 void IEEEFloat::initFromIEEEAPInt(const APInt &api) {

llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp

@@ -1533,7 +1533,6 @@ void AArch64DAGToDAGISel::SelectPtrauthAuth(SDNode *N) {
 
   SDNode *AUT = CurDAG->getMachineNode(AArch64::AUT, DL, MVT::i64, Ops);
   ReplaceNode(N, AUT);
-  return;
 }
 
 void AArch64DAGToDAGISel::SelectPtrauthResign(SDNode *N) {
@@ -1567,7 +1566,6 @@ void AArch64DAGToDAGISel::SelectPtrauthResign(SDNode *N) {
 
   SDNode *AUTPAC = CurDAG->getMachineNode(AArch64::AUTPAC, DL, MVT::i64, Ops);
   ReplaceNode(N, AUTPAC);
-  return;
 }
 
 bool AArch64DAGToDAGISel::tryIndexedLoad(SDNode *N) {