Apply clang-tidy fixes for modernize-use-default-member-init to MLIR (NFC)

mlir/lib/Dialect/Linalg/Transforms/Vectorization.cpp

@@ -1355,8 +1355,8 @@ namespace {
 struct Conv1DNwcGenerator : public StructuredGenerator<LinalgOp> {
   Conv1DNwcGenerator(OpBuilder &builder, LinalgOp linalgOp, int strideW,
                      int dilationW)
-      : StructuredGenerator<LinalgOp>(builder, linalgOp), valid(false),
-        strideW(strideW), dilationW(dilationW) {
+      : StructuredGenerator<LinalgOp>(builder, linalgOp), strideW(strideW),
+        dilationW(dilationW) {
     // Determine whether `linalgOp` can be generated with this generator
     if (linalgOp.getNumInputs() != 2 || linalgOp.getNumOutputs() != 1)
       return;
@@ -1665,7 +1665,7 @@ struct Conv1DNwcGenerator : public StructuredGenerator<LinalgOp> {
   }
 
 private:
-  bool valid;
+  bool valid = false;
   int strideW, dilationW;
   Value lhsShaped, rhsShaped, resShaped;
   ShapedType lhsShapedType, rhsShapedType, resShapedType;

mlir/lib/Dialect/Linalg/Utils/Utils.cpp

@@ -57,7 +57,7 @@ namespace {
 //   `d0 + 2 * d1 + d3` is tiled by [0, 0, 0, 2] but not by [0, 0, 2, 0]
 //
 struct TileCheck : public AffineExprVisitor<TileCheck> {
-  TileCheck(ValueRange tileSizes) : isTiled(false), tileSizes(tileSizes) {}
+  TileCheck(ValueRange tileSizes) : tileSizes(tileSizes) {}
 
   void visitDimExpr(AffineDimExpr expr) {
     isTiled |= !isZero(tileSizes[expr.getPosition()]);
@@ -69,7 +69,7 @@ struct TileCheck : public AffineExprVisitor<TileCheck> {
       assert(expr.getRHS().cast<AffineConstantExpr>().getValue() > 0 &&
              "nonpositive multiplying coefficient");
   }
-  bool isTiled;
+  bool isTiled = false;
   ValueRange tileSizes;
 };
 

mlir/lib/Dialect/SparseTensor/Transforms/Sparsification.cpp

@@ -52,10 +52,9 @@ struct CodeGen {
         indices(numTensors, std::vector<Value>(numLoops)),
         highs(numTensors, std::vector<Value>(numLoops)),
         pidxs(numTensors, std::vector<Value>(numLoops)),
-        idxs(numTensors, std::vector<Value>(numLoops)), redExp(-1u), redVal(),
-        redKind(kNoReduc), sparseOut(op), outerParNest(nest), lexIdx(),
-        expValues(), expFilled(), expAdded(), expCount(), curVecLength(1),
-        curVecMask() {}
+        idxs(numTensors, std::vector<Value>(numLoops)), redVal(), sparseOut(op),
+        outerParNest(nest), lexIdx(), expValues(), expFilled(), expAdded(),
+        expCount(), curVecMask() {}
   /// Sparsification options.
   SparsificationOptions options;
   /// Universal dense indices and upper bounds (by index). The loops array
@@ -77,9 +76,9 @@ struct CodeGen {
   std::vector<std::vector<Value>> idxs;
   /// Current reduction, updated during code generation. When indices of a
   /// reduction are exhausted, all inner loops can use a scalarized reduction.
-  unsigned redExp;
+  unsigned redExp = -1u;
   Value redVal;
-  Reduction redKind;
+  Reduction redKind = kNoReduc;
   // Sparse tensor as output. Implemented either through direct injective
   // insertion in lexicographic index order (where indices are updated
   // in the temporary array `lexIdx`) or through access pattern expansion
@@ -92,7 +91,7 @@ struct CodeGen {
   Value expAdded;
   Value expCount;
   // Current vector length and mask.
-  unsigned curVecLength;
+  unsigned curVecLength = 1;
   Value curVecMask;
 };
 

mlir/lib/IR/Diagnostics.cpp

@@ -844,7 +844,7 @@ struct ParallelDiagnosticHandlerImpl : public llvm::PrettyStackTraceEntry {
     Diagnostic diag;
   };
 
-  ParallelDiagnosticHandlerImpl(MLIRContext *ctx) : handlerID(0), context(ctx) {
+  ParallelDiagnosticHandlerImpl(MLIRContext *ctx) : context(ctx) {
     handlerID = ctx->getDiagEngine().registerHandler([this](Diagnostic &diag) {
       uint64_t tid = llvm::get_threadid();
       llvm::sys::SmartScopedLock<true> lock(mutex);
@@ -942,7 +942,7 @@ struct ParallelDiagnosticHandlerImpl : public llvm::PrettyStackTraceEntry {
   mutable std::vector<ThreadDiagnostic> diagnostics;
 
   /// The unique id for the parallel handler.
-  DiagnosticEngine::HandlerID handlerID;
+  DiagnosticEngine::HandlerID handlerID = 0;
 
   /// The context to emit the diagnostics to.
   MLIRContext *context;

mlir/lib/Parser/AffineParser.cpp

@@ -48,7 +48,7 @@ public:
   AffineParser(ParserState &state, bool allowParsingSSAIds = false,
                function_ref<ParseResult(bool)> parseElement = nullptr)
       : Parser(state), allowParsingSSAIds(allowParsingSSAIds),
-        parseElement(parseElement), numDimOperands(0), numSymbolOperands(0) {}
+        parseElement(parseElement) {}
 
   AffineMap parseAffineMapRange(unsigned numDims, unsigned numSymbols);
   ParseResult parseAffineMapOrIntegerSetInline(AffineMap &map, IntegerSet &set);
@@ -92,8 +92,8 @@ private:
 private:
   bool allowParsingSSAIds;
   function_ref<ParseResult(bool)> parseElement;
-  unsigned numDimOperands;
-  unsigned numSymbolOperands;
+  unsigned numDimOperands = 0;
+  unsigned numSymbolOperands = 0;
   SmallVector<std::pair<StringRef, AffineExpr>, 4> dimsAndSymbols;
 };
 } // namespace

mlir/lib/Pass/PassRegistry.cpp

@@ -326,11 +326,11 @@ private:
   /// the name is the name of a pass, the InnerPipeline is empty, since passes
   /// cannot contain inner pipelines.
   struct PipelineElement {
-    PipelineElement(StringRef name) : name(name), registryEntry(nullptr) {}
+    PipelineElement(StringRef name) : name(name) {}
 
     StringRef name;
     StringRef options;
-    const PassRegistryEntry *registryEntry;
+    const PassRegistryEntry *registryEntry = nullptr;
     std::vector<PipelineElement> innerPipeline;
   };
 

mlir/lib/Tools/PDLL/Parser/Parser.cpp

@@ -43,8 +43,7 @@ class Parser {
 public:
   Parser(ast::Context &ctx, llvm::SourceMgr &sourceMgr)
       : ctx(ctx), lexer(sourceMgr, ctx.getDiagEngine()),
-        curToken(lexer.lexToken()), curDeclScope(nullptr),
-        valueTy(ast::ValueType::get(ctx)),
+        curToken(lexer.lexToken()), valueTy(ast::ValueType::get(ctx)),
         valueRangeTy(ast::ValueRangeType::get(ctx)),
         typeTy(ast::TypeType::get(ctx)),
         typeRangeTy(ast::TypeRangeType::get(ctx)),
@@ -469,7 +468,7 @@ private:
   Token curToken;
 
   /// The most recently defined decl scope.
-  ast::DeclScope *curDeclScope;
+  ast::DeclScope *curDeclScope = nullptr;
   llvm::SpecificBumpPtrAllocator<ast::DeclScope> scopeAllocator;
 
   /// The current context of the parser.

mlir/lib/Tools/mlir-lsp-server/MLIRServer.cpp

@@ -716,7 +716,7 @@ private:
   int64_t version;
 
   /// The number of lines in the file.
-  int64_t totalNumLines;
+  int64_t totalNumLines = 0;
 
   /// The chunks of this file. The order of these chunks is the order in which
   /// they appear in the text file.
@@ -728,7 +728,7 @@ MLIRTextFile::MLIRTextFile(const lsp::URIForFile &uri, StringRef fileContents,
                            int64_t version, DialectRegistry &registry,
                            std::vector<lsp::Diagnostic> &diagnostics)
     : context(registry, MLIRContext::Threading::DISABLED),
-      contents(fileContents.str()), version(version), totalNumLines(0) {
+      contents(fileContents.str()), version(version) {
   context.allowUnregisteredDialects();
 
   // Split the file into separate MLIR documents.

mlir/lib/Transforms/CSE.cpp

@@ -63,8 +63,7 @@ struct CSE : public CSEBase<CSE> {
   /// Represents a single entry in the depth first traversal of a CFG.
   struct CFGStackNode {
     CFGStackNode(ScopedMapTy &knownValues, DominanceInfoNode *node)
-        : scope(knownValues), node(node), childIterator(node->begin()),
-          processed(false) {}
+        : scope(knownValues), node(node), childIterator(node->begin()) {}
 
     /// Scope for the known values.
     ScopedMapTy::ScopeTy scope;
@@ -73,7 +72,7 @@ struct CSE : public CSEBase<CSE> {
     DominanceInfoNode::const_iterator childIterator;
 
     /// If this node has been fully processed yet or not.
-    bool processed;
+    bool processed = false;
   };
 
   /// Attempt to eliminate a redundant operation. Returns success if the

mlir/lib/Transforms/Utils/ControlFlowSinkUtils.cpp

@@ -35,8 +35,7 @@ public:
   /// Create an operation sinker with given dominance info.
   Sinker(function_ref<bool(Operation *, Region *)> shouldMoveIntoRegion,
          DominanceInfo &domInfo)
-      : shouldMoveIntoRegion(shouldMoveIntoRegion), domInfo(domInfo),
-        numSunk(0) {}
+      : shouldMoveIntoRegion(shouldMoveIntoRegion), domInfo(domInfo) {}
 
   /// Given a list of regions, find operations to sink and sink them. Return the
   /// number of operations sunk.
@@ -65,7 +64,7 @@ private:
   /// Dominance info to determine op user dominance with respect to regions.
   DominanceInfo &domInfo;
   /// The number of operations sunk.
-  size_t numSunk;
+  size_t numSunk = 0;
 };
 } // end anonymous namespace
 

mlir/tools/mlir-tblgen/OpFormatGen.cpp

@@ -301,8 +301,8 @@ struct OperationFormat {
   };
 
   OperationFormat(const Operator &op)
-      : allOperands(false), allOperandTypes(false), allResultTypes(false),
-        infersResultTypes(false) {
+
+  {
     operandTypes.resize(op.getNumOperands(), TypeResolution());
     resultTypes.resize(op.getNumResults(), TypeResolution());
 
@@ -346,10 +346,10 @@ struct OperationFormat {
 
   /// A flag indicating if all operand/result types were seen. If the format
   /// contains these, it can not contain individual type resolvers.
-  bool allOperands, allOperandTypes, allResultTypes;
+  bool allOperands = false, allOperandTypes = false, allResultTypes = false;
 
   /// A flag indicating if this operation infers its result types
-  bool infersResultTypes;
+  bool infersResultTypes = false;
 
   /// A flag indicating if this operation has the SingleBlockImplicitTerminator
   /// trait.

mlir/tools/mlir-tblgen/RewriterGen.cpp

@@ -243,7 +243,7 @@ private:
   StaticMatcherHelper &staticMatcherHelper;
 
   // The next unused ID for newly created values.
-  unsigned nextValueId;
+  unsigned nextValueId = 0;
 
   raw_indented_ostream os;
 
@@ -333,8 +333,7 @@ private:
 PatternEmitter::PatternEmitter(Record *pat, RecordOperatorMap *mapper,
                                raw_ostream &os, StaticMatcherHelper &helper)
     : loc(pat->getLoc()), opMap(mapper), pattern(pat, mapper),
-      symbolInfoMap(pat->getLoc()), staticMatcherHelper(helper), nextValueId(0),
-      os(os) {
+      symbolInfoMap(pat->getLoc()), staticMatcherHelper(helper), os(os) {
   fmtCtx.withBuilder("rewriter");
 }