[mlir] Remove static constructors from LLVMType

[ftynse]

Summary

LLVMType contains numerous static constructors that were initially introduced
for API compatibility with LLVM. Most of these merely forward to arguments to
SpecificType::get (MLIR defines classes for all types, unlike LLVM IR), while
some introduce subtle semantics differences due to different modeling of MLIR
types (e.g., structs are not auto-renamed in case of conflicts). Furthermore,
these constructors don't match MLIR idioms and actively prevent us from making
the LLVM dialect type system more open. Remove them and use SpecificType::get
instead.

Depends On D93680

[ftynse]

Rebase

[ftynse]

Try fixing a Windows test

mlir/examples/toy/Ch6/mlir/LowerToLLVM.cpp

private:
   static FlatSymbolRefAttr getOrInsertPrintf(PatternRewriter &rewriter,
                                              ModuleOp module) {
     auto *context = module.getContext();
     if (module.lookupSymbol<LLVM::LLVMFuncOp>("printf"))
       return SymbolRefAttr::get("printf", context);
 
     // Create a function declaration for printf, the signature is:
     //   * `i32 (i8*, ...)`
-    auto llvmI32Ty = LLVM::LLVMType::getInt32Ty(context);
-    auto llvmI8PtrTy = LLVM::LLVMType::getInt8PtrTy(context);
-    auto llvmFnType = LLVM::LLVMType::getFunctionTy(llvmI32Ty, llvmI8PtrTy,
-                                                    /*isVarArg=*/true);
+    auto llvmI32Ty = LLVM::LLVMIntegerType::get(context, 32);
+    auto llvmI8PtrTy =
+        LLVM::LLVMPointerType::get(LLVM::LLVMIntegerType::get(context, 8));
+    auto llvmFnType = LLVM::LLVMFunctionType::get(llvmI32Ty, llvmI8PtrTy,
 
     // Insert the printf function into the body of the parent module.
     PatternRewriter::InsertionGuard insertGuard(rewriter);
     rewriter.setInsertionPointToStart(module.getBody());
     rewriter.create<LLVM::LLVMFuncOp>(module.getLoc(), "printf", llvmFnType);
     return SymbolRefAttr::get("printf", context);
   }
 
   /// Return a value representing an access into a global string with the given
   /// name, creating the string if necessary.
   static Value getOrCreateGlobalString(Location loc, OpBuilder &builder,
                                        StringRef name, StringRef value,
                                        ModuleOp module) {
     // Create the global at the entry of the module.
     LLVM::GlobalOp global;
     if (!(global = module.lookupSymbol<LLVM::GlobalOp>(name))) {
       OpBuilder::InsertionGuard insertGuard(builder);
       builder.setInsertionPointToStart(module.getBody());
-      auto type = LLVM::LLVMType::getArrayTy(
-          LLVM::LLVMType::getInt8Ty(builder.getContext()), value.size());
+      auto type = LLVM::LLVMArrayType::get(
+          LLVM::LLVMIntegerType::get(builder.getContext(), 8), value.size());
       global = builder.create<LLVM::GlobalOp>(loc, type, /*isConstant=*/true,
                                               LLVM::Linkage::Internal, name,
                                               builder.getStringAttr(value));
     }
 
     // Get the pointer to the first character in the global string.
     Value globalPtr = builder.create<LLVM::AddressOfOp>(loc, global);
     Value cst0 = builder.create<LLVM::ConstantOp>(
-        loc, LLVM::LLVMType::getInt64Ty(builder.getContext()),
+        loc, LLVM::LLVMIntegerType::get(builder.getContext(), 64),
         builder.getIntegerAttr(builder.getIndexType(), 0));
     return builder.create<LLVM::GEPOp>(
-        loc, LLVM::LLVMType::getInt8PtrTy(builder.getContext()), globalPtr,
-        ArrayRef<Value>({cst0, cst0}));
+        loc,
+        LLVM::LLVMPointerType::get(
+            LLVM::LLVMIntegerType::get(builder.getContext(), 8)),
+        globalPtr, ArrayRef<Value>({cst0, cst0}));
   }
 };
 } // end anonymous namespace
 
 //===----------------------------------------------------------------------===//
 // ToyToLLVMLoweringPass
 //===----------------------------------------------------------------------===//
 

mlir/examples/toy/Ch7/mlir/LowerToLLVM.cpp

private:
   static FlatSymbolRefAttr getOrInsertPrintf(PatternRewriter &rewriter,
                                              ModuleOp module) {
     auto *context = module.getContext();
     if (module.lookupSymbol<LLVM::LLVMFuncOp>("printf"))
       return SymbolRefAttr::get("printf", context);
 
     // Create a function declaration for printf, the signature is:
     //   * `i32 (i8*, ...)`
-    auto llvmI32Ty = LLVM::LLVMType::getInt32Ty(context);
-    auto llvmI8PtrTy = LLVM::LLVMType::getInt8PtrTy(context);
-    auto llvmFnType = LLVM::LLVMType::getFunctionTy(llvmI32Ty, llvmI8PtrTy,
-                                                    /*isVarArg=*/true);
+    auto llvmI32Ty = LLVM::LLVMIntegerType::get(context, 32);
+    auto llvmI8PtrTy =
+        LLVM::LLVMPointerType::get(LLVM::LLVMIntegerType::get(context, 8));
+    auto llvmFnType = LLVM::LLVMFunctionType::get(llvmI32Ty, llvmI8PtrTy,
 
     // Insert the printf function into the body of the parent module.
     PatternRewriter::InsertionGuard insertGuard(rewriter);
     rewriter.setInsertionPointToStart(module.getBody());
     rewriter.create<LLVM::LLVMFuncOp>(module.getLoc(), "printf", llvmFnType);
     return SymbolRefAttr::get("printf", context);
   }
 
   /// Return a value representing an access into a global string with the given
   /// name, creating the string if necessary.
   static Value getOrCreateGlobalString(Location loc, OpBuilder &builder,
                                        StringRef name, StringRef value,
                                        ModuleOp module) {
     // Create the global at the entry of the module.
     LLVM::GlobalOp global;
     if (!(global = module.lookupSymbol<LLVM::GlobalOp>(name))) {
       OpBuilder::InsertionGuard insertGuard(builder);
       builder.setInsertionPointToStart(module.getBody());
-      auto type = LLVM::LLVMType::getArrayTy(
-          LLVM::LLVMType::getInt8Ty(builder.getContext()), value.size());
+      auto type = LLVM::LLVMArrayType::get(
+          LLVM::LLVMIntegerType::get(builder.getContext(), 8), value.size());
       global = builder.create<LLVM::GlobalOp>(loc, type, /*isConstant=*/true,
                                               LLVM::Linkage::Internal, name,
                                               builder.getStringAttr(value));
     }
 
     // Get the pointer to the first character in the global string.
     Value globalPtr = builder.create<LLVM::AddressOfOp>(loc, global);
     Value cst0 = builder.create<LLVM::ConstantOp>(
-        loc, LLVM::LLVMType::getInt64Ty(builder.getContext()),
+        loc, LLVM::LLVMIntegerType::get(builder.getContext(), 64),
         builder.getIntegerAttr(builder.getIndexType(), 0));
     return builder.create<LLVM::GEPOp>(
-        loc, LLVM::LLVMType::getInt8PtrTy(builder.getContext()), globalPtr,
-        ArrayRef<Value>({cst0, cst0}));
+        loc,
+        LLVM::LLVMPointerType::get(
+            LLVM::LLVMIntegerType::get(builder.getContext(), 8)),
+        globalPtr, ArrayRef<Value>({cst0, cst0}));
   }
 };
 } // end anonymous namespace
 
 //===----------------------------------------------------------------------===//
 // ToyToLLVMLoweringPass
 //===----------------------------------------------------------------------===//
 

mlir/include/mlir/Dialect/LLVMIR/LLVMOps.td

let arguments = (ins ICmpPredicate:$predicate,
                    LLVM_ScalarOrVectorOf<LLVM_AnyInteger>:$rhs);
   let results = (outs LLVM_ScalarOrVectorOf<LLVM_i1>:$res);
   let llvmBuilder = [{
     $res = builder.CreateICmp(getLLVMCmpPredicate($predicate), $lhs, $rhs);
   }];
   let builders = [
     OpBuilderDAG<(ins "ICmpPredicate":$predicate, "Value":$lhs, "Value":$rhs),
     [{
-      build($_builder, $_state, LLVMType::getInt1Ty(lhs.getType().getContext()),
+      build($_builder, $_state, LLVMIntegerType::get(lhs.getType().getContext(), 1),
             $_builder.getI64IntegerAttr(static_cast<int64_t>(predicate)), lhs, rhs);
     }]>];
   let parser = [{ return parseCmpOp<ICmpPredicate>(parser, result); }];
   let printer = [{ printICmpOp(p, *this); }];
 }
 
 // Predicate for float comparisons
 def FCmpPredicateFALSE  : I64EnumAttrCase<"_false", 0>;
let arguments = (ins FCmpPredicate:$predicate,
                    LLVM_ScalarOrVectorOf<LLVM_AnyFloat>:$rhs);
   let results = (outs LLVM_ScalarOrVectorOf<LLVM_i1>:$res);
   let llvmBuilder = [{
     $res = builder.CreateFCmp(getLLVMCmpPredicate($predicate), $lhs, $rhs);
   }];
   let builders = [
     OpBuilderDAG<(ins "FCmpPredicate":$predicate, "Value":$lhs, "Value":$rhs),
     [{
-      build($_builder, $_state, LLVMType::getInt1Ty(lhs.getType().getContext()),
+      build($_builder, $_state, LLVMIntegerType::get(lhs.getType().getContext(), 1),
             $_builder.getI64IntegerAttr(static_cast<int64_t>(predicate)), lhs, rhs);
     }]>];
   let parser = [{ return parseCmpOp<FCmpPredicate>(parser, result); }];
   let printer = [{ printFCmpOp(p, *this); }];
 }
 
 // Floating point binary operations.
 def LLVM_FAddOp : LLVM_FloatArithmeticOp<"fadd", "CreateFAdd">;

mlir/include/mlir/Dialect/LLVMIR/LLVMTypes.h

 //===----------------------------------------------------------------------===//
 // LLVMType.
 //===----------------------------------------------------------------------===//
 
 /// Base class for LLVM dialect types.
 ///
 /// The LLVM dialect in MLIR fully reflects the LLVM IR type system, prodiving a
 /// separate MLIR type for each LLVM IR type. All types are represented as
-/// separate subclasses and are compatible with the isa/cast infrastructure. For
-/// convenience, the base class provides most of the APIs available on
-/// llvm::Type in addition to MLIR-compatible APIs.
+/// separate subclasses and are compatible with the isa/cast infrastructure.
 ///
 /// The LLVM dialect type system is closed: parametric types can only refer to
 /// other LLVM dialect types. This is consistent with LLVM IR and enables a more
 /// concise pretty-printing format.
 ///
 /// Similarly to other MLIR types, LLVM dialect types are owned by the MLIR
 /// context, have an immutable identifier (for most types except identified
 /// structs, the entire type is the identifier) and are thread-safe.
+///
+/// This class is a thin common base class for different types available in the
+/// LLVM dialect. It intentionally does not provide the API similar to
+/// llvm::Type to avoid confusion and highlight potentially expensive operations
+/// (e.g., type creation in MLIR takes a lock, so it's better to cache types).
 class LLVMType : public Type {
 public:
   /// Inherit base constructors.
   using Type::Type;
 
   /// Support for PointerLikeTypeTraits.
   using Type::getAsOpaquePointer;
   static LLVMType getFromOpaquePointer(const void *ptr) {
     return LLVMType(static_cast<ImplType *>(const_cast<void *>(ptr)));
   }
 
   /// Support for isa/cast.
   static bool classof(Type type);
 
   LLVMDialect &getDialect();
-
-  /// Utilities used to generate floating point types.
-  static LLVMType getDoubleTy(MLIRContext *context);
-  static LLVMType getFloatTy(MLIRContext *context);
-  static LLVMType getBFloatTy(MLIRContext *context);
-  static LLVMType getHalfTy(MLIRContext *context);
-  static LLVMType getFP128Ty(MLIRContext *context);
-  static LLVMType getX86_FP80Ty(MLIRContext *context);
-
-  /// Utilities used to generate integer types.
-  static LLVMType getIntNTy(MLIRContext *context, unsigned numBits);
-  static LLVMType getInt1Ty(MLIRContext *context) {
-    return getIntNTy(context, /*numBits=*/1);
-  }
-  static LLVMType getInt8Ty(MLIRContext *context) {
-    return getIntNTy(context, /*numBits=*/8);
-  }
-  static LLVMType getInt8PtrTy(MLIRContext *context);
-  static LLVMType getInt16Ty(MLIRContext *context) {
-    return getIntNTy(context, /*numBits=*/16);
-  }
-  static LLVMType getInt32Ty(MLIRContext *context) {
-    return getIntNTy(context, /*numBits=*/32);
-  }
-  static LLVMType getInt64Ty(MLIRContext *context) {
-    return getIntNTy(context, /*numBits=*/64);
-  }
-
-  /// Utilities used to generate other miscellaneous types.
-  static LLVMType getArrayTy(LLVMType elementType, uint64_t numElements);
-  static LLVMType getFunctionTy(LLVMType result, ArrayRef<LLVMType> params,
-                                bool isVarArg);
-  static LLVMType getFunctionTy(LLVMType result, bool isVarArg) {
-    return getFunctionTy(result, llvm::None, isVarArg);
-  }
-  static LLVMType getStructTy(MLIRContext *context, ArrayRef<LLVMType> elements,
-                              bool isPacked = false);
-  static LLVMType getStructTy(MLIRContext *context, bool isPacked = false) {
-    return getStructTy(context, llvm::None, isPacked);
-  }
-  template <typename... Args>
-  static typename std::enable_if<llvm::are_base_of<LLVMType, Args...>::value,
-                                 LLVMType>::type
-  getStructTy(LLVMType elt1, Args... elts) {
-    SmallVector<LLVMType, 8> fields({elt1, elts...});
-    return getStructTy(elt1.getContext(), fields);
-  }
-  static LLVMType getVectorTy(LLVMType elementType, unsigned numElements);
-
-  /// Void type utilities.
-  static LLVMType getVoidTy(MLIRContext *context);
-
-  // Creation and setting of LLVM's identified struct types
-  static LLVMType createStructTy(MLIRContext *context,
-                                 ArrayRef<LLVMType> elements,
-                                 Optional<StringRef> name,
-                                 bool isPacked = false);
-
-  static LLVMType createStructTy(MLIRContext *context,
-                                 Optional<StringRef> name) {
-    return createStructTy(context, llvm::None, name);
-  }
-
-  static LLVMType createStructTy(ArrayRef<LLVMType> elements,
-                                 Optional<StringRef> name,
-                                 bool isPacked = false) {
-    assert(!elements.empty() &&
-           "This method may not be invoked with an empty list");
-    LLVMType ele0 = elements.front();
-    return createStructTy(ele0.getContext(), elements, name, isPacked);
-  }
-
-  template <typename... Args>
-  static typename std::enable_if_t<llvm::are_base_of<LLVMType, Args...>::value,
-                                   LLVMType>
-  createStructTy(StringRef name, LLVMType elt1, Args... elts) {
-    SmallVector<LLVMType, 8> fields({elt1, elts...});
-    Optional<StringRef> opt_name(name);
-    return createStructTy(elt1.getContext(), fields, opt_name);
-  }
-
-  static LLVMType setStructTyBody(LLVMType structType,
-                                  ArrayRef<LLVMType> elements,
-                                  bool isPacked = false);
-
-  template <typename... Args>
-  static typename std::enable_if_t<llvm::are_base_of<LLVMType, Args...>::value,
-                                   LLVMType>
-  setStructTyBody(LLVMType structType, LLVMType elt1, Args... elts) {
-    SmallVector<LLVMType, 8> fields({elt1, elts...});
-    return setStructTyBody(structType, fields);
-  }
 };
 
 //===----------------------------------------------------------------------===//
 // Trivial types.
 //===----------------------------------------------------------------------===//
 
 // Batch-define trivial types.
 #define DEFINE_TRIVIAL_LLVM_TYPE(ClassName)                                    \
public:
   /// Gets or creates an identified struct with the given name in the provided
   /// context. Note that unlike llvm::StructType::create, this function will
   /// _NOT_ rename a struct in case a struct with the same name already exists
   /// in the context. Instead, it will just return the existing struct,
   /// similarly to the rest of MLIR type ::get methods.
   static LLVMStructType getIdentified(MLIRContext *context, StringRef name);
   static LLVMStructType getIdentifiedChecked(Location loc, StringRef name);
 
+  /// Gets a new identified struct with the given body. The body _cannot_ be
+  /// changed later. If a struct with the given name already exists, renames
+  /// the struct by appending a `.` followed by a number to the name. Renaming
+  /// happens even if the existing struct has the same body.
+  static LLVMStructType getNewIdentified(MLIRContext *context, StringRef name,
+                                         ArrayRef<LLVMType> elements,
+                                         bool isPacked = false);
+
   /// Gets or creates a literal struct with the given body in the provided
   /// context.
   static LLVMStructType getLiteral(MLIRContext *context,
                                    ArrayRef<LLVMType> types,
                                    bool isPacked = false);
   static LLVMStructType getLiteralChecked(Location loc,
                                           ArrayRef<LLVMType> types,
                                           bool isPacked = false);

mlir/lib/Conversion/AsyncToLLVM/AsyncToLLVM.cpp

static constexpr const char *kAwaitAndExecute =
     "mlirAsyncRuntimeAwaitTokenAndExecute";
 static constexpr const char *kAwaitAllAndExecute =
     "mlirAsyncRuntimeAwaitAllInGroupAndExecute";
 
 namespace {
 // Async Runtime API function types.
 struct AsyncAPI {
   static FunctionType addOrDropRefFunctionType(MLIRContext *ctx) {
-    auto ref = LLVM::LLVMType::getInt8PtrTy(ctx);
+    auto ref = LLVM::LLVMPointerType::get(LLVM::LLVMIntegerType::get(ctx, 8));
     auto count = IntegerType::get(ctx, 32);
     return FunctionType::get(ctx, {ref, count}, {});
   }
 
   static FunctionType createTokenFunctionType(MLIRContext *ctx) {
     return FunctionType::get(ctx, {}, {TokenType::get(ctx)});
   }
 
static FunctionType awaitTokenFunctionType(MLIRContext *ctx) {
     return FunctionType::get(ctx, {TokenType::get(ctx)}, {});
   }
 
   static FunctionType awaitGroupFunctionType(MLIRContext *ctx) {
     return FunctionType::get(ctx, {GroupType::get(ctx)}, {});
   }
 
   static FunctionType executeFunctionType(MLIRContext *ctx) {
-    auto hdl = LLVM::LLVMType::getInt8PtrTy(ctx);
+    auto hdl = LLVM::LLVMPointerType::get(LLVM::LLVMIntegerType::get(ctx, 8));
     auto resume = LLVM::LLVMPointerType::get(resumeFunctionType(ctx));
     return FunctionType::get(ctx, {hdl, resume}, {});
   }
 
   static FunctionType addTokenToGroupFunctionType(MLIRContext *ctx) {
     auto i64 = IntegerType::get(ctx, 64);
     return FunctionType::get(ctx, {TokenType::get(ctx), GroupType::get(ctx)},
                              {i64});
   }
 
   static FunctionType awaitAndExecuteFunctionType(MLIRContext *ctx) {
-    auto hdl = LLVM::LLVMType::getInt8PtrTy(ctx);
+    auto hdl = LLVM::LLVMPointerType::get(LLVM::LLVMIntegerType::get(ctx, 8));
     auto resume = LLVM::LLVMPointerType::get(resumeFunctionType(ctx));
     return FunctionType::get(ctx, {TokenType::get(ctx), hdl, resume}, {});
   }
 
   static FunctionType awaitAllAndExecuteFunctionType(MLIRContext *ctx) {
-    auto hdl = LLVM::LLVMType::getInt8PtrTy(ctx);
+    auto hdl = LLVM::LLVMPointerType::get(LLVM::LLVMIntegerType::get(ctx, 8));
     auto resume = LLVM::LLVMPointerType::get(resumeFunctionType(ctx));
     return FunctionType::get(ctx, {GroupType::get(ctx), hdl, resume}, {});
   }
 
   // Auxiliary coroutine resume intrinsic wrapper.
   static LLVM::LLVMType resumeFunctionType(MLIRContext *ctx) {
-    auto voidTy = LLVM::LLVMType::getVoidTy(ctx);
-    auto i8Ptr = LLVM::LLVMType::getInt8PtrTy(ctx);
-    return LLVM::LLVMType::getFunctionTy(voidTy, {i8Ptr}, false);
+    auto voidTy = LLVM::LLVMVoidType::get(ctx);
+    auto i8Ptr = LLVM::LLVMPointerType::get(LLVM::LLVMIntegerType::get(ctx, 8));
+    return LLVM::LLVMFunctionType::get(voidTy, {i8Ptr}, false);
   }
 };
 } // namespace
 
 // Adds Async Runtime C API declarations to the module.
 static void addAsyncRuntimeApiDeclarations(ModuleOp module) {
   auto builder = ImplicitLocOpBuilder::atBlockTerminator(module.getLoc(),
                                                          module.getBody());

 static constexpr const char *kCoroResume = "llvm.coro.resume";
 
 /// Adds an LLVM function declaration to a module.
 static void addLLVMFuncDecl(ModuleOp module, ImplicitLocOpBuilder &builder,
                             StringRef name, LLVM::LLVMType ret,
                             ArrayRef<LLVM::LLVMType> params) {
   if (module.lookupSymbol(name))
     return;
-  LLVM::LLVMType type = LLVM::LLVMType::getFunctionTy(ret, params, false);
+  LLVM::LLVMType type = LLVM::LLVMFunctionType::get(ret, params);
   builder.create<LLVM::LLVMFuncOp>(name, type);
 }
 
 /// Adds coroutine intrinsics declarations to the module.
 static void addCoroutineIntrinsicsDeclarations(ModuleOp module) {
   using namespace mlir::LLVM;
 
   MLIRContext *ctx = module.getContext();
   ImplicitLocOpBuilder builder(module.getLoc(),
                                module.getBody()->getTerminator());
 
   auto token = LLVMTokenType::get(ctx);
-  auto voidTy = LLVMType::getVoidTy(ctx);
+  auto voidTy = LLVMVoidType::get(ctx);
 
-  auto i8 = LLVMType::getInt8Ty(ctx);
-  auto i1 = LLVMType::getInt1Ty(ctx);
-  auto i32 = LLVMType::getInt32Ty(ctx);
-  auto i64 = LLVMType::getInt64Ty(ctx);
-  auto i8Ptr = LLVMType::getInt8PtrTy(ctx);
+  auto i8 = LLVMIntegerType::get(ctx, 8);
+  auto i1 = LLVMIntegerType::get(ctx, 1);
+  auto i32 = LLVMIntegerType::get(ctx, 32);
+  auto i64 = LLVMIntegerType::get(ctx, 64);
+  auto i8Ptr = LLVMPointerType::get(i8);
 
   addLLVMFuncDecl(module, builder, kCoroId, token, {i32, i8Ptr, i8Ptr, i8Ptr});
   addLLVMFuncDecl(module, builder, kCoroSizeI64, i64, {});
   addLLVMFuncDecl(module, builder, kCoroBegin, i8Ptr, {token, i8Ptr});
   addLLVMFuncDecl(module, builder, kCoroSave, token, {i8Ptr});
   addLLVMFuncDecl(module, builder, kCoroSuspend, i8, {token, i1});
   addLLVMFuncDecl(module, builder, kCoroEnd, i1, {i8Ptr, i1});
   addLLVMFuncDecl(module, builder, kCoroFree, i8Ptr, {token, i8Ptr});

 /// Adds malloc/free declarations to the module.
 static void addCRuntimeDeclarations(ModuleOp module) {
   using namespace mlir::LLVM;
 
   MLIRContext *ctx = module.getContext();
   ImplicitLocOpBuilder builder(module.getLoc(),
                                module.getBody()->getTerminator());
 
-  auto voidTy = LLVMType::getVoidTy(ctx);
-  auto i64 = LLVMType::getInt64Ty(ctx);
-  auto i8Ptr = LLVMType::getInt8PtrTy(ctx);
+  auto voidTy = LLVMVoidType::get(ctx);
+  auto i64 = LLVMIntegerType::get(ctx, 64);
+  auto i8Ptr = LLVMPointerType::get(LLVMIntegerType::get(ctx, 8));
 
   addLLVMFuncDecl(module, builder, kMalloc, i8Ptr, {i64});
   addLLVMFuncDecl(module, builder, kFree, voidTy, {i8Ptr});
 }
 
 //===----------------------------------------------------------------------===//
 // Coroutine resume function wrapper.
 //===----------------------------------------------------------------------===//
 
 static constexpr const char *kResume = "__resume";
 
 // A function that takes a coroutine handle and calls a `llvm.coro.resume`
 // intrinsics. We need this function to be able to pass it to the async
 // runtime execute API.
 static void addResumeFunction(ModuleOp module) {
   MLIRContext *ctx = module.getContext();
 
   OpBuilder moduleBuilder(module.getBody()->getTerminator());
   Location loc = module.getLoc();
 
   if (module.lookupSymbol(kResume))
     return;
 
-  auto voidTy = LLVM::LLVMType::getVoidTy(ctx);
-  auto i8Ptr = LLVM::LLVMType::getInt8PtrTy(ctx);
+  auto voidTy = LLVM::LLVMVoidType::get(ctx);
+  auto i8Ptr = LLVM::LLVMPointerType::get(LLVM::LLVMIntegerType::get(ctx, 8));
 
   auto resumeOp = moduleBuilder.create<LLVM::LLVMFuncOp>(
-      loc, kResume, LLVM::LLVMType::getFunctionTy(voidTy, {i8Ptr}, false));
+      loc, kResume, LLVM::LLVMFunctionType::get(voidTy, {i8Ptr}));
   resumeOp.setPrivate();
 
   auto *block = resumeOp.addEntryBlock();
   auto blockBuilder = ImplicitLocOpBuilder::atBlockEnd(loc, block);
 
   blockBuilder.create<LLVM::CallOp>(TypeRange(),
                                     blockBuilder.getSymbolRefAttr(kCoroResume),
                                     resumeOp.getArgument(0));

 //
 //
 static CoroMachinery setupCoroMachinery(FuncOp func) {
   assert(func.getBody().empty() && "Function must have empty body");
 
   MLIRContext *ctx = func.getContext();
 
   auto token = LLVM::LLVMTokenType::get(ctx);
-  auto i1 = LLVM::LLVMType::getInt1Ty(ctx);
-  auto i32 = LLVM::LLVMType::getInt32Ty(ctx);
-  auto i64 = LLVM::LLVMType::getInt64Ty(ctx);
-  auto i8Ptr = LLVM::LLVMType::getInt8PtrTy(ctx);
+  auto i1 = LLVM::LLVMIntegerType::get(ctx, 1);
+  auto i32 = LLVM::LLVMIntegerType::get(ctx, 32);
+  auto i64 = LLVM::LLVMIntegerType::get(ctx, 64);
+  auto i8Ptr = LLVM::LLVMPointerType::get(LLVM::LLVMIntegerType::get(ctx, 8));
 
   Block *entryBlock = func.addEntryBlock();
   Location loc = func.getBody().getLoc();
 
   auto builder = ImplicitLocOpBuilder::atBlockBegin(loc, entryBlock);
 
   // ------------------------------------------------------------------------ //
   // Allocate async tokens/values that we will return from a ramp function.

 //   ^cleanup: ...
 //   ^suspend: ...
 //
 static void addSuspensionPoint(CoroMachinery coro, Value coroState,
                                Operation *op, Block *suspended, Block *resume,
                                OpBuilder &builder) {
   Location loc = op->getLoc();
   MLIRContext *ctx = op->getContext();
-  auto i1 = LLVM::LLVMType::getInt1Ty(ctx);
-  auto i8 = LLVM::LLVMType::getInt8Ty(ctx);
+  auto i1 = LLVM::LLVMIntegerType::get(ctx, 1);
+  auto i8 = LLVM::LLVMIntegerType::get(ctx, 8);
 
   // Add a coroutine suspension in place of original `op` in the split block.
   OpBuilder::InsertionGuard guard(builder);
   builder.setInsertionPointToEnd(suspended);
 
   auto constFalse =
       builder.create<LLVM::ConstantOp>(loc, i1, builder.getBoolAttr(false));
 

 class AsyncRuntimeTypeConverter : public TypeConverter {
 public:
   AsyncRuntimeTypeConverter() { addConversion(convertType); }
 
   static Type convertType(Type type) {
     MLIRContext *ctx = type.getContext();
     // Convert async tokens and groups to opaque pointers.
     if (type.isa<TokenType, GroupType>())
-      return LLVM::LLVMType::getInt8PtrTy(ctx);
+      return LLVM::LLVMPointerType::get(LLVM::LLVMIntegerType::get(ctx, 8));
     return type;
   }
 };
 } // namespace
 
 //===----------------------------------------------------------------------===//
 // Convert types for all call operations to lowered async types.
 //===----------------------------------------------------------------------===//

mlir/lib/Conversion/GPUCommon/ConvertLaunchFuncToRuntimeCalls.cpp

public:
   void runOnOperation() override;
 };
 
 class FunctionCallBuilder {
 public:
   FunctionCallBuilder(StringRef functionName, LLVM::LLVMType returnType,
                       ArrayRef<LLVM::LLVMType> argumentTypes)
       : functionName(functionName),
-        functionType(LLVM::LLVMFunctionType::get(returnType, argumentTypes,
-                                                 /*isVarArg=*/false)) {}
+        functionType(LLVM::LLVMFunctionType::get(returnType, argumentTypes)) {}
   LLVM::CallOp create(Location loc, OpBuilder &builder,
                       ArrayRef<Value> arguments) const;
 
 private:
   StringRef functionName;
   LLVM::LLVMFunctionType functionType;
 };
 
 template <typename OpTy>
 class ConvertOpToGpuRuntimeCallPattern : public ConvertOpToLLVMPattern<OpTy> {
 public:
   explicit ConvertOpToGpuRuntimeCallPattern(LLVMTypeConverter &typeConverter)
       : ConvertOpToLLVMPattern<OpTy>(typeConverter) {}
 
 protected:
   MLIRContext *context = &this->getTypeConverter()->getContext();
 
-  LLVM::LLVMType llvmVoidType = LLVM::LLVMType::getVoidTy(context);
-  LLVM::LLVMType llvmPointerType = LLVM::LLVMType::getInt8PtrTy(context);
+  LLVM::LLVMType llvmVoidType = LLVM::LLVMVoidType::get(context);
+  LLVM::LLVMType llvmPointerType =
+      LLVM::LLVMPointerType::get(LLVM::LLVMIntegerType::get(context, 8));
   LLVM::LLVMType llvmPointerPointerType =
       LLVM::LLVMPointerType::get(llvmPointerType);
-  LLVM::LLVMType llvmInt8Type = LLVM::LLVMType::getInt8Ty(context);
-  LLVM::LLVMType llvmInt32Type = LLVM::LLVMType::getInt32Ty(context);
-  LLVM::LLVMType llvmInt64Type = LLVM::LLVMType::getInt64Ty(context);
-  LLVM::LLVMType llvmIntPtrType = LLVM::LLVMType::getIntNTy(
+  LLVM::LLVMType llvmInt8Type = LLVM::LLVMIntegerType::get(context, 8);
+  LLVM::LLVMType llvmInt32Type = LLVM::LLVMIntegerType::get(context, 32);
+  LLVM::LLVMType llvmInt64Type = LLVM::LLVMIntegerType::get(context, 64);
+  LLVM::LLVMType llvmIntPtrType = LLVM::LLVMIntegerType::get(
       context, this->getTypeConverter()->getPointerBitwidth(0));
 
   FunctionCallBuilder moduleLoadCallBuilder = {
       "mgpuModuleLoad",
       llvmPointerType /* void *module */,
       {llvmPointerType /* void *cubin */}};
   FunctionCallBuilder moduleUnloadCallBuilder = {
       "mgpuModuleUnload", llvmVoidType, {llvmPointerType /* void *module */}};
Value ConvertLaunchFuncOpToGpuRuntimeCallPattern::generateParamsArray(
   auto arguments = getTypeConverter()->promoteOperands(
       loc, launchOp.getOperands().take_back(numKernelOperands),
       operands.take_back(numKernelOperands), builder);
   auto numArguments = arguments.size();
   SmallVector<LLVM::LLVMType, 4> argumentTypes;
   argumentTypes.reserve(numArguments);
   for (auto argument : arguments)
     argumentTypes.push_back(argument.getType().cast<LLVM::LLVMType>());
-  auto structType = LLVM::LLVMType::createStructTy(argumentTypes, StringRef());
+  auto structType = LLVM::LLVMStructType::getNewIdentified(context, StringRef(),
+                                                           argumentTypes);
   auto one = builder.create<LLVM::ConstantOp>(loc, llvmInt32Type,
                                               builder.getI32IntegerAttr(1));
   auto structPtr = builder.create<LLVM::AllocaOp>(
       loc, LLVM::LLVMPointerType::get(structType), one, /*alignment=*/0);
   auto arraySize = builder.create<LLVM::ConstantOp>(
       loc, llvmInt32Type, builder.getI32IntegerAttr(numArguments));
   auto arrayPtr = builder.create<LLVM::AllocaOp>(loc, llvmPointerPointerType,
                                                  arraySize, /*alignment=*/0);

 std::unique_ptr<mlir::OperationPass<mlir::ModuleOp>>
 mlir::createGpuToLLVMConversionPass(StringRef gpuBinaryAnnotation) {
   return std::make_unique<GpuToLLVMConversionPass>(gpuBinaryAnnotation);
 }
 
 void mlir::populateGpuToLLVMConversionPatterns(
     LLVMTypeConverter &converter, OwningRewritePatternList &patterns,
     StringRef gpuBinaryAnnotation) {
-  converter.addConversion(
-      [context = &converter.getContext()](gpu::AsyncTokenType type) -> Type {
-        return LLVM::LLVMType::getInt8PtrTy(context);
-      });
+  converter.addConversion([context = &converter.getContext()](
+                              gpu::AsyncTokenType type) -> Type {
+    return LLVM::LLVMPointerType::get(LLVM::LLVMIntegerType::get(context, 8));
   patterns.insert<ConvertAllocOpToGpuRuntimeCallPattern,
                   ConvertDeallocOpToGpuRuntimeCallPattern,
                   ConvertHostRegisterOpToGpuRuntimeCallPattern,
                   ConvertMemcpyOpToGpuRuntimeCallPattern,
                   ConvertWaitAsyncOpToGpuRuntimeCallPattern,
                   ConvertWaitOpToGpuRuntimeCallPattern>(converter);
   patterns.insert<ConvertLaunchFuncOpToGpuRuntimeCallPattern>(
       converter, gpuBinaryAnnotation);
   patterns.insert<EraseGpuModuleOpPattern>(&converter.getContext());
 }

mlir/lib/Conversion/GPUCommon/GPUOpsLowering.h

for (auto en : llvm::enumerate(gpuFuncOp.getWorkgroupAttributions())) {
 
       auto type = attribution.getType().dyn_cast<MemRefType>();
       assert(type && type.hasStaticShape() && "unexpected type in attribution");
 
       uint64_t numElements = type.getNumElements();
 
       auto elementType = typeConverter->convertType(type.getElementType())
                              .template cast<LLVM::LLVMType>();
-      auto arrayType = LLVM::LLVMType::getArrayTy(elementType, numElements);
+      auto arrayType = LLVM::LLVMArrayType::get(elementType, numElements);
       std::string name = std::string(
           llvm::formatv("__wg_{0}_{1}", gpuFuncOp.getName(), en.index()));
       auto globalOp = rewriter.create<LLVM::GlobalOp>(
           gpuFuncOp.getLoc(), arrayType, /*isConstant=*/false,
           LLVM::Linkage::Internal, name, /*value=*/Attribute(),
           gpu::GPUDialect::getWorkgroupAddressSpace());
       workgroupBuffers.push_back(globalOp);
     }
auto llvmFuncOp = rewriter.create<LLVM::LLVMFuncOp>(
       // the original function, before the body region is inlined in the new
       // function to maintain the relation between block arguments and the
       // parent operation that assigns their semantics.
       OpBuilder::InsertionGuard guard(rewriter);
 
       // Rewrite workgroup memory attributions to addresses of global buffers.
       rewriter.setInsertionPointToStart(&gpuFuncOp.front());
       unsigned numProperArguments = gpuFuncOp.getNumArguments();
-      auto i32Type = LLVM::LLVMType::getInt32Ty(rewriter.getContext());
+      auto i32Type = LLVM::LLVMIntegerType::get(rewriter.getContext(), 32);
 
       Value zero = nullptr;
       if (!workgroupBuffers.empty())
         zero = rewriter.create<LLVM::ConstantOp>(loc, i32Type,
                                                  rewriter.getI32IntegerAttr(0));
       for (auto en : llvm::enumerate(workgroupBuffers)) {
         LLVM::GlobalOp global = en.value();
         Value address = rewriter.create<LLVM::AddressOfOp>(loc, global);
auto llvmFuncOp = rewriter.create<LLVM::LLVMFuncOp>(
         auto descr = MemRefDescriptor::fromStaticShape(
             rewriter, loc, *getTypeConverter(), type, memory);
         signatureConversion.remapInput(numProperArguments + en.index(), descr);
       }
 
       // Rewrite private memory attributions to alloca'ed buffers.
       unsigned numWorkgroupAttributions =
           gpuFuncOp.getNumWorkgroupAttributions();
-      auto int64Ty = LLVM::LLVMType::getInt64Ty(rewriter.getContext());
+      auto int64Ty = LLVM::LLVMIntegerType::get(rewriter.getContext(), 64);
       for (auto en : llvm::enumerate(gpuFuncOp.getPrivateAttributions())) {
         Value attribution = en.value();
         auto type = attribution.getType().cast<MemRefType>();
         assert(type && type.hasStaticShape() &&
                "unexpected type in attribution");
 
         // Explicitly drop memory space when lowering private memory
         // attributions since NVVM models it as `alloca`s in the default

mlir/lib/Conversion/GPUCommon/IndexIntrinsicsOpLowering.h

public:
   LogicalResult
   matchAndRewrite(Op op, ArrayRef<Value> operands,
                   ConversionPatternRewriter &rewriter) const override {
     auto loc = op->getLoc();
     MLIRContext *context = rewriter.getContext();
     Value newOp;
     switch (dimensionToIndex(op)) {
     case X:
-      newOp = rewriter.create<XOp>(loc, LLVM::LLVMType::getInt32Ty(context));
+      newOp =
+          rewriter.create<XOp>(loc, LLVM::LLVMIntegerType::get(context, 32));
       break;
     case Y:
-      newOp = rewriter.create<YOp>(loc, LLVM::LLVMType::getInt32Ty(context));
+      newOp =
+          rewriter.create<YOp>(loc, LLVM::LLVMIntegerType::get(context, 32));
       break;
     case Z:
-      newOp = rewriter.create<ZOp>(loc, LLVM::LLVMType::getInt32Ty(context));
+      newOp =
+          rewriter.create<ZOp>(loc, LLVM::LLVMIntegerType::get(context, 32));
       break;
     default:
       return failure();
     }
 
     if (indexBitwidth > 32) {
       newOp = rewriter.create<LLVM::SExtOp>(
-          loc, LLVM::LLVMType::getIntNTy(context, indexBitwidth), newOp);
+          loc, LLVM::LLVMIntegerType::get(context, indexBitwidth), newOp);
     } else if (indexBitwidth < 32) {
       newOp = rewriter.create<LLVM::TruncOp>(
-          loc, LLVM::LLVMType::getIntNTy(context, indexBitwidth), newOp);
+          loc, LLVM::LLVMIntegerType::get(context, indexBitwidth), newOp);
     }
 
     rewriter.replaceOp(op, {newOp});
     return success();
   }
 };
 
 } // namespace mlir
 
 #endif // MLIR_CONVERSION_GPUCOMMON_INDEXINTRINSICSOPLOWERING_H_

mlir/lib/Conversion/GPUCommon/OpToFuncCallLowering.h

 
 private:
   Value maybeCast(Value operand, PatternRewriter &rewriter) const {
     LLVM::LLVMType type = operand.getType().cast<LLVM::LLVMType>();
     if (!type.isa<LLVM::LLVMHalfType>())
       return operand;
 
     return rewriter.create<LLVM::FPExtOp>(
-        operand.getLoc(), LLVM::LLVMType::getFloatTy(rewriter.getContext()),
+        operand.getLoc(), LLVM::LLVMFloatType::get(rewriter.getContext()),
         operand);
   }
 
   LLVM::LLVMType getFunctionType(LLVM::LLVMType resultType,
                                  ArrayRef<Value> operands) const {
     using LLVM::LLVMType;
     SmallVector<LLVMType, 1> operandTypes;
     for (Value operand : operands) {
       operandTypes.push_back(operand.getType().cast<LLVMType>());
     }
-    return LLVMType::getFunctionTy(resultType, operandTypes,
-                                   /*isVarArg=*/false);
+    return LLVM::LLVMFunctionType::get(resultType, operandTypes);
   }
 
   StringRef getFunctionName(LLVM::LLVMType type) const {
     if (type.isa<LLVM::LLVMFloatType>())
       return f32Func;
     if (type.isa<LLVM::LLVMDoubleType>())
       return f64Func;
     return "";

mlir/lib/Conversion/GPUToNVVM/LowerGpuOpsToNVVMOps.cpp

struct GPUShuffleOpLowering : public ConvertOpToLLVMPattern<gpu::ShuffleOp> {
   ///         !llvm<"{ float, i1 }">
   LogicalResult
   matchAndRewrite(gpu::ShuffleOp op, ArrayRef<Value> operands,
                   ConversionPatternRewriter &rewriter) const override {
     Location loc = op->getLoc();
     gpu::ShuffleOpAdaptor adaptor(operands);
 
     auto valueTy = adaptor.value().getType().cast<LLVM::LLVMType>();
-    auto int32Type = LLVM::LLVMType::getInt32Ty(rewriter.getContext());
-    auto predTy = LLVM::LLVMType::getInt1Ty(rewriter.getContext());
-    auto resultTy =
-        LLVM::LLVMType::getStructTy(rewriter.getContext(), {valueTy, predTy});
+    auto int32Type = LLVM::LLVMIntegerType::get(rewriter.getContext(), 32);
+    auto predTy = LLVM::LLVMIntegerType::get(rewriter.getContext(), 1);
+    auto resultTy = LLVM::LLVMStructType::getLiteral(rewriter.getContext(),
+                                                     {valueTy, predTy});
 
     Value one = rewriter.create<LLVM::ConstantOp>(
         loc, int32Type, rewriter.getI32IntegerAttr(1));
     // Bit mask of active lanes: `(1 << activeWidth) - 1`.
     Value activeMask = rewriter.create<LLVM::SubOp>(
         loc, int32Type,
         rewriter.create<LLVM::ShlOp>(loc, int32Type, one, adaptor.width()),
         one);

mlir/lib/Conversion/GPUToVulkan/ConvertLaunchFuncToVulkanCalls.cpp

 /// * runOnVulkan          -- runs vulkan runtime
 /// * deinitVulkan         -- deinitializes vulkan runtime
 ///
 class VulkanLaunchFuncToVulkanCallsPass
     : public ConvertVulkanLaunchFuncToVulkanCallsBase<
           VulkanLaunchFuncToVulkanCallsPass> {
 private:
   void initializeCachedTypes() {
-    llvmFloatType = LLVM::LLVMType::getFloatTy(&getContext());
-    llvmVoidType = LLVM::LLVMType::getVoidTy(&getContext());
-    llvmPointerType = LLVM::LLVMType::getInt8PtrTy(&getContext());
-    llvmInt32Type = LLVM::LLVMType::getInt32Ty(&getContext());
-    llvmInt64Type = LLVM::LLVMType::getInt64Ty(&getContext());
+    llvmFloatType = LLVM::LLVMFloatType::get(&getContext());
+    llvmVoidType = LLVM::LLVMVoidType::get(&getContext());
+    llvmPointerType = LLVM::LLVMPointerType::get(
+        LLVM::LLVMIntegerType::get(&getContext(), 8));
+    llvmInt32Type = LLVM::LLVMIntegerType::get(&getContext(), 32);
+    llvmInt64Type = LLVM::LLVMIntegerType::get(&getContext(), 64);
   }
 
   LLVM::LLVMType getMemRefType(uint32_t rank, LLVM::LLVMType elemenType) {
     // According to the MLIR doc memref argument is converted into a
     // pointer-to-struct argument of type:
     // template <typename Elem, size_t Rank>
     // struct {
     //   Elem *allocated;
     //   Elem *aligned;
     //   int64_t offset;
     //   int64_t sizes[Rank]; // omitted when rank == 0
     //   int64_t strides[Rank]; // omitted when rank == 0
     // };
     auto llvmPtrToElementType = LLVM::LLVMPointerType::get(elemenType);
     auto llvmArrayRankElementSizeType =
-        LLVM::LLVMType::getArrayTy(getInt64Type(), rank);
+        LLVM::LLVMArrayType::get(getInt64Type(), rank);
 
     // Create a type
     // `!llvm<"{ `element-type`*, `element-type`*, i64,
     // [`rank` x i64], [`rank` x i64]}">`.
-    return LLVM::LLVMType::getStructTy(
+    return LLVM::LLVMStructType::getLiteral(
         &getContext(),
         {llvmPtrToElementType, llvmPtrToElementType, getInt64Type(),
          llvmArrayRankElementSizeType, llvmArrayRankElementSizeType});
   }
 
   LLVM::LLVMType getVoidType() { return llvmVoidType; }
   LLVM::LLVMType getPointerType() { return llvmPointerType; }
   LLVM::LLVMType getInt32Type() { return llvmInt32Type; }
for (auto en :
     }
 
     auto symbolName =
         llvm::formatv("bindMemRef{0}D{1}", rank, stringifyType(type)).str();
     // Special case for fp16 type. Since it is not a supported type in C we use
     // int16_t and bitcast the descriptor.
     if (type.isa<LLVM::LLVMHalfType>()) {
       auto memRefTy =
-          getMemRefType(rank, LLVM::LLVMType::getInt16Ty(&getContext()));
+          getMemRefType(rank, LLVM::LLVMIntegerType::get(&getContext(), 16));
       ptrToMemRefDescriptor = builder.create<LLVM::BitcastOp>(
           loc, LLVM::LLVMPointerType::get(memRefTy), ptrToMemRefDescriptor);
     }
     // Create call to `bindMemRef`.
     builder.create<LLVM::CallOp>(
         loc, TypeRange{getVoidType()},
         builder.getSymbolRefAttr(
             StringRef(symbolName.data(), symbolName.size())),

 
 void VulkanLaunchFuncToVulkanCallsPass::declareVulkanFunctions(Location loc) {
   ModuleOp module = getOperation();
   OpBuilder builder(module.getBody()->getTerminator());
 
   if (!module.lookupSymbol(kSetEntryPoint)) {
     builder.create<LLVM::LLVMFuncOp>(
         loc, kSetEntryPoint,
-        LLVM::LLVMType::getFunctionTy(getVoidType(),
-                                      {getPointerType(), getPointerType()},
-                                      /*isVarArg=*/false));
+        LLVM::LLVMFunctionType::get(getVoidType(),
+                                    {getPointerType(), getPointerType()}));
   }
 
   if (!module.lookupSymbol(kSetNumWorkGroups)) {
     builder.create<LLVM::LLVMFuncOp>(
         loc, kSetNumWorkGroups,
-        LLVM::LLVMType::getFunctionTy(
-            getVoidType(),
-            {getPointerType(), getInt64Type(), getInt64Type(), getInt64Type()},
-            /*isVarArg=*/false));
+        LLVM::LLVMFunctionType::get(getVoidType(),
+                                    {getPointerType(), getInt64Type(),
+                                     getInt64Type(), getInt64Type()}));
   }
 
   if (!module.lookupSymbol(kSetBinaryShader)) {
     builder.create<LLVM::LLVMFuncOp>(
         loc, kSetBinaryShader,
-        LLVM::LLVMType::getFunctionTy(
-            getVoidType(), {getPointerType(), getPointerType(), getInt32Type()},
-            /*isVarArg=*/false));
+        LLVM::LLVMFunctionType::get(
+            getVoidType(),
+            {getPointerType(), getPointerType(), getInt32Type()}));
   }
 
   if (!module.lookupSymbol(kRunOnVulkan)) {
     builder.create<LLVM::LLVMFuncOp>(
         loc, kRunOnVulkan,
-        LLVM::LLVMType::getFunctionTy(getVoidType(), {getPointerType()},
-                                      /*isVarArg=*/false));
+        LLVM::LLVMFunctionType::get(getVoidType(), {getPointerType()}));
   }
 
   for (unsigned i = 1; i <= 3; i++) {
-    for (LLVM::LLVMType type : {LLVM::LLVMType::getFloatTy(&getContext()),
-                                LLVM::LLVMType::getInt32Ty(&getContext()),
-                                LLVM::LLVMType::getInt16Ty(&getContext()),
-                                LLVM::LLVMType::getInt8Ty(&getContext()),
-                                LLVM::LLVMType::getHalfTy(&getContext())}) {
+    SmallVector<LLVM::LLVMType, 5> types{
+        LLVM::LLVMFloatType::get(&getContext()),
+        LLVM::LLVMIntegerType::get(&getContext(), 32),
+        LLVM::LLVMIntegerType::get(&getContext(), 16),
+        LLVM::LLVMIntegerType::get(&getContext(), 8),
+        LLVM::LLVMHalfType::get(&getContext())};
+    for (auto type : types) {
       std::string fnName = "bindMemRef" + std::to_string(i) + "D" +
                            std::string(stringifyType(type));
       if (type.isa<LLVM::LLVMHalfType>())
-        type = LLVM::LLVMType::getInt16Ty(&getContext());
+        type = LLVM::LLVMIntegerType::get(&getContext(), 16);
       if (!module.lookupSymbol(fnName)) {
-        auto fnType = LLVM::LLVMType::getFunctionTy(
+        auto fnType = LLVM::LLVMFunctionType::get(
             getVoidType(),
             {getPointerType(), getInt32Type(), getInt32Type(),
              LLVM::LLVMPointerType::get(getMemRefType(i, type))},
             /*isVarArg=*/false);
         builder.create<LLVM::LLVMFuncOp>(loc, fnName, fnType);
       }
     }
   }
 
   if (!module.lookupSymbol(kInitVulkan)) {
     builder.create<LLVM::LLVMFuncOp>(
-        loc, kInitVulkan,
-        LLVM::LLVMType::getFunctionTy(getPointerType(), {},
-                                      /*isVarArg=*/false));
+        loc, kInitVulkan, LLVM::LLVMFunctionType::get(getPointerType(), {}));
   }
 
   if (!module.lookupSymbol(kDeinitVulkan)) {
     builder.create<LLVM::LLVMFuncOp>(
         loc, kDeinitVulkan,
-        LLVM::LLVMType::getFunctionTy(getVoidType(), {getPointerType()},
-                                      /*isVarArg=*/false));
+        LLVM::LLVMFunctionType::get(getVoidType(), {getPointerType()}));
   }
 }
 
 Value VulkanLaunchFuncToVulkanCallsPass::createEntryPointNameConstant(
     StringRef name, Location loc, OpBuilder &builder) {
   SmallString<16> shaderName(name.begin(), name.end());
   // Append `\0` to follow C style string given that LLVM::createGlobalString()
   // won't handle this directly for us.

mlir/lib/Conversion/LinalgToLLVM/LinalgToLLVM.cpp

 ///   int64_t min;
 ///   int64_t max;
 ///   int64_t step;
 /// };
 static Type convertRangeType(RangeType t, LLVMTypeConverter &converter) {
   auto *context = t.getContext();
   auto int64Ty = converter.convertType(IntegerType::get(context, 64))
                      .cast<LLVM::LLVMType>();
-  return LLVMType::getStructTy(int64Ty, int64Ty, int64Ty);
+  return LLVMStructType::getLiteral(context, {int64Ty, int64Ty, int64Ty});
 }
 
 namespace {
 /// EDSC-compatible wrapper for MemRefDescriptor.
 class BaseViewConversionHelper {
 public:
   BaseViewConversionHelper(Type type)
       : d(MemRefDescriptor::undef(rewriter(), loc(), type)) {}

mlir/lib/Conversion/SPIRVToLLVM/ConvertLaunchFuncToLLVMCalls.cpp

static unsigned calculateGlobalIndex(spirv::GlobalVariableOp op) {
   IntegerAttr binding = op->getAttrOfType<IntegerAttr>(bindingName());
   return binding.getInt();
 }
 
 /// Copies the given number of bytes from src to dst pointers.
 static void copy(Location loc, Value dst, Value src, Value size,
                  OpBuilder &builder) {
   MLIRContext *context = builder.getContext();
-  auto llvmI1Type = LLVM::LLVMType::getInt1Ty(context);
+  auto llvmI1Type = LLVM::LLVMIntegerType::get(context, 1);
   Value isVolatile = builder.create<LLVM::ConstantOp>(
       loc, llvmI1Type, builder.getBoolAttr(false));
   builder.create<LLVM::MemcpyOp>(loc, dst, src, size, isVolatile);
 }
 
 /// Encodes the binding and descriptor set numbers into a new symbolic name.
 /// The name is specified by
 ///   {kernel_module_name}_{variable_name}_descriptor_set{ds}_binding{b}
matchAndRewrite(gpu::LaunchFuncOp launchOp, ArrayRef<Value> operands,
     StringRef kernelFuncName = launchOp.getKernelName();
     std::string newKernelFuncName = spvModuleName + "_" + kernelFuncName.str();
     auto kernelFunc = module.lookupSymbol<LLVM::LLVMFuncOp>(newKernelFuncName);
     if (!kernelFunc) {
       OpBuilder::InsertionGuard guard(rewriter);
       rewriter.setInsertionPointToStart(module.getBody());
       kernelFunc = rewriter.create<LLVM::LLVMFuncOp>(
           rewriter.getUnknownLoc(), newKernelFuncName,
-          LLVM::LLVMType::getFunctionTy(LLVM::LLVMType::getVoidTy(context),
-                                        ArrayRef<LLVM::LLVMType>(),
-                                        /*isVarArg=*/false));
+          LLVM::LLVMFunctionType::get(LLVM::LLVMVoidType::get(context),
+                                      ArrayRef<LLVM::LLVMType>()));
       rewriter.setInsertionPoint(launchOp);
     }
 
     // Get all global variables associated with the kernel operands.
     DenseMap<uint32_t, spirv::GlobalVariableOp> globalVariableMap;
     if (failed(getKernelGlobalVariables(spvModule, globalVariableMap)))
       return failure();
 

mlir/lib/Conversion/SPIRVToLLVM/ConvertSPIRVToLLVM.cpp

convertStructTypeWithOffset(spirv::StructType type,
                             LLVMTypeConverter &converter) {
   if (type != VulkanLayoutUtils::decorateType(type))
     return llvm::None;
 
   auto elementsVector = llvm::to_vector<8>(
       llvm::map_range(type.getElementTypes(), [&](Type elementType) {
         return converter.convertType(elementType).cast<LLVM::LLVMType>();
       }));
-  return LLVM::LLVMType::getStructTy(type.getContext(), elementsVector,
+  return LLVM::LLVMStructType::getLiteral(type.getContext(), elementsVector,
                                           /*isPacked=*/false);
 }
 
 /// Converts SPIR-V struct with no offset to packed LLVM struct.
 static Type convertStructTypePacked(spirv::StructType type,
                                     LLVMTypeConverter &converter) {
   auto elementsVector = llvm::to_vector<8>(
       llvm::map_range(type.getElementTypes(), [&](Type elementType) {
         return converter.convertType(elementType).cast<LLVM::LLVMType>();
       }));
-  return LLVM::LLVMType::getStructTy(type.getContext(), elementsVector,
+  return LLVM::LLVMStructType::getLiteral(type.getContext(), elementsVector,
                                           /*isPacked=*/true);
 }
 
 /// Creates LLVM dialect constant with the given value.
 static Value createI32ConstantOf(Location loc, PatternRewriter &rewriter,
                                  unsigned value) {
   return rewriter.create<LLVM::ConstantOp>(
-      loc, LLVM::LLVMType::getInt32Ty(rewriter.getContext()),
+      loc, LLVM::LLVMIntegerType::get(rewriter.getContext(), 32),
       rewriter.getIntegerAttr(rewriter.getI32Type(), value));
 }
 
 /// Utility for `spv.Load` and `spv.Store` conversion.
 static LogicalResult replaceWithLoadOrStore(Operation *op,
                                             ConversionPatternRewriter &rewriter,
                                             LLVMTypeConverter &typeConverter,
                                             unsigned alignment, bool isVolatile,
static Optional<Type> convertArrayType(spirv::ArrayType type,
   auto sizeInBytes = elementType.cast<spirv::SPIRVType>().getSizeInBytes();
   if (stride != 0 &&
       !(sizeInBytes.hasValue() && sizeInBytes.getValue() == stride))
     return llvm::None;
 
   auto llvmElementType =
       converter.convertType(elementType).cast<LLVM::LLVMType>();
   unsigned numElements = type.getNumElements();
-  return LLVM::LLVMType::getArrayTy(llvmElementType, numElements);
+  return LLVM::LLVMArrayType::get(llvmElementType, numElements);
 }
 
 /// Converts SPIR-V pointer type to LLVM pointer. Pointer's storage class is not
 /// modelled at the moment.
 static Type convertPointerType(spirv::PointerType type,
                                TypeConverter &converter) {
   auto pointeeType =
       converter.convertType(type.getPointeeType()).cast<LLVM::LLVMType>();
   return LLVM::LLVMPointerType::get(pointeeType);
 }
 
 /// Converts SPIR-V runtime array to LLVM array. Since LLVM allows indexing over
 /// the bounds, the runtime array is converted to a 0-sized LLVM array. There is
 /// no modelling of array stride at the moment.
 static Optional<Type> convertRuntimeArrayType(spirv::RuntimeArrayType type,
                                               TypeConverter &converter) {
   if (type.getArrayStride() != 0)
     return llvm::None;
   auto elementType =
       converter.convertType(type.getElementType()).cast<LLVM::LLVMType>();
-  return LLVM::LLVMType::getArrayTy(elementType, 0);
+  return LLVM::LLVMArrayType::get(elementType, 0);
 }
 
 /// Converts SPIR-V struct to LLVM struct. There is no support of structs with
 /// member decorations. Also, only natural offset is supported.
 static Optional<Type> convertStructType(spirv::StructType type,
                                         LLVMTypeConverter &converter) {
   SmallVector<spirv::StructType::MemberDecorationInfo, 4> memberDecorations;
   type.getMemberDecorations(memberDecorations);
matchAndRewrite(spirv::ExecutionModeOp op, ArrayRef<Value> operands,
     OpBuilder::InsertionGuard guard(rewriter);
     rewriter.setInsertionPointToStart(module.getBody());
 
     // Create a struct type, corresponding to the C struct below.
     // struct {
     //   int32_t executionMode;
     //   int32_t values[];          // optional values
     // };
-    auto llvmI32Type = LLVM::LLVMType::getInt32Ty(context);
+    auto llvmI32Type = LLVM::LLVMIntegerType::get(context, 32);
     SmallVector<LLVM::LLVMType, 2> fields;
     fields.push_back(llvmI32Type);
     ArrayAttr values = op.values();
     if (!values.empty()) {
-      auto arrayType = LLVM::LLVMType::getArrayTy(llvmI32Type, values.size());
+      auto arrayType = LLVM::LLVMArrayType::get(llvmI32Type, values.size());
       fields.push_back(arrayType);
     }
-    auto structType = LLVM::LLVMType::getStructTy(context, fields);
+    auto structType = LLVM::LLVMStructType::getLiteral(context, fields);
 
     // Create `llvm.mlir.global` with initializer region containing one block.
     auto global = rewriter.create<LLVM::GlobalOp>(
         UnknownLoc::get(context), structType, /*isConstant=*/true,
         LLVM::Linkage::External, executionModeInfoName, Attribute());
     Location loc = global.getLoc();
     Region &region = global.getInitializerRegion();
     Block *block = rewriter.createBlock(&region);

mlir/lib/Conversion/StandardToLLVM/StandardToLLVM.cpp

 }
 
 /// Returns the MLIR context.
 MLIRContext &LLVMTypeConverter::getContext() {
   return *getDialect()->getContext();
 }
 
 LLVM::LLVMType LLVMTypeConverter::getIndexType() {
-  return LLVM::LLVMType::getIntNTy(&getContext(), getIndexTypeBitwidth());
+  return LLVM::LLVMIntegerType::get(&getContext(), getIndexTypeBitwidth());
 }
 
 unsigned LLVMTypeConverter::getPointerBitwidth(unsigned addressSpace) {
   return options.dataLayout.getPointerSizeInBits(addressSpace);
 }
 
 Type LLVMTypeConverter::convertIndexType(IndexType type) {
   return getIndexType();
 }
 
 Type LLVMTypeConverter::convertIntegerType(IntegerType type) {
-  return LLVM::LLVMType::getIntNTy(&getContext(), type.getWidth());
+  return LLVM::LLVMIntegerType::get(&getContext(), type.getWidth());
 }
 
 Type LLVMTypeConverter::convertFloatType(FloatType type) {
   if (type.isa<Float32Type>())
-    return LLVM::LLVMType::getFloatTy(&getContext());
+    return LLVM::LLVMFloatType::get(&getContext());
   if (type.isa<Float64Type>())
-    return LLVM::LLVMType::getDoubleTy(&getContext());
+    return LLVM::LLVMDoubleType::get(&getContext());
   if (type.isa<Float16Type>())
-    return LLVM::LLVMType::getHalfTy(&getContext());
+    return LLVM::LLVMHalfType::get(&getContext());
   if (type.isa<BFloat16Type>())
-    return LLVM::LLVMType::getBFloatTy(&getContext());
+    return LLVM::LLVMBFloatType::get(&getContext());
   llvm_unreachable("non-float type in convertFloatType");
 }
 
 // Convert a `ComplexType` to an LLVM type. The result is a complex number
 // struct with entries for the
 //   1. real part and for the
 //   2. imaginary part.
 static constexpr unsigned kRealPosInComplexNumberStruct = 0;
 static constexpr unsigned kImaginaryPosInComplexNumberStruct = 1;
 Type LLVMTypeConverter::convertComplexType(ComplexType type) {
   auto elementType = convertType(type.getElementType()).cast<LLVM::LLVMType>();
-  return LLVM::LLVMType::getStructTy(&getContext(), {elementType, elementType});
+  return LLVM::LLVMStructType::getLiteral(&getContext(),
+                                          {elementType, elementType});
 }
 
 // Except for signatures, MLIR function types are converted into LLVM
 // pointer-to-function types.
 Type LLVMTypeConverter::convertFunctionType(FunctionType type) {
   SignatureConversion conversion(type.getNumInputs());
   LLVM::LLVMType converted =
       convertFunctionSignature(type, /*isVariadic=*/false, conversion);
LLVM::LLVMType LLVMTypeConverter::convertFunctionSignature(
   for (Type type : result.getConvertedTypes())
     argTypes.push_back(unwrap(type));
 
   // If function does not return anything, create the void result type,
   // if it returns on element, convert it, otherwise pack the result types into
   // a struct.
   LLVM::LLVMType resultType =
       funcTy.getNumResults() == 0
-          ? LLVM::LLVMType::getVoidTy(&getContext())
+          ? LLVM::LLVMVoidType::get(&getContext())
           : unwrap(packFunctionResults(funcTy.getResults()));
   if (!resultType)
     return {};
-  return LLVM::LLVMType::getFunctionTy(resultType, argTypes, isVariadic);
+  return LLVM::LLVMFunctionType::get(resultType, argTypes, isVariadic);
 }
 
 /// Converts the function type to a C-compatible format, in particular using
 /// pointers to memref descriptors for arguments.
 LLVM::LLVMType
 LLVMTypeConverter::convertFunctionTypeCWrapper(FunctionType type) {
   SmallVector<LLVM::LLVMType, 4> inputs;
 
   for (Type t : type.getInputs()) {
     auto converted = convertType(t).dyn_cast_or_null<LLVM::LLVMType>();
     if (!converted)
       return {};
     if (t.isa<MemRefType, UnrankedMemRefType>())
       converted = LLVM::LLVMPointerType::get(converted);
     inputs.push_back(converted);
   }
 
   LLVM::LLVMType resultType =
       type.getNumResults() == 0
-          ? LLVM::LLVMType::getVoidTy(&getContext())
+          ? LLVM::LLVMVoidType::get(&getContext())
           : unwrap(packFunctionResults(type.getResults()));
   if (!resultType)
     return {};
 
-  return LLVM::LLVMType::getFunctionTy(resultType, inputs, false);
+  return LLVM::LLVMFunctionType::get(resultType, inputs);
 }
 
 static constexpr unsigned kAllocatedPtrPosInMemRefDescriptor = 0;
 static constexpr unsigned kAlignedPtrPosInMemRefDescriptor = 1;
 static constexpr unsigned kOffsetPosInMemRefDescriptor = 2;
 static constexpr unsigned kSizePosInMemRefDescriptor = 3;
 static constexpr unsigned kStridePosInMemRefDescriptor = 4;
 
LLVMTypeConverter::getMemRefDescriptorFields(MemRefType type,
   SmallVector<LLVM::LLVMType, 5> results = {ptrTy, ptrTy, indexTy};
   auto rank = type.getRank();
   if (rank == 0)
     return results;
 
   if (unpackAggregates)
     results.insert(results.end(), 2 * rank, indexTy);
   else
-    results.insert(results.end(), 2, LLVM::LLVMType::getArrayTy(indexTy, rank));
+    results.insert(results.end(), 2, LLVM::LLVMArrayType::get(indexTy, rank));
   return results;
 }
 
 /// Converts MemRefType to LLVMType. A MemRefType is converted to a struct that
 /// packs the descriptor fields as defined by `getMemRefDescriptorFields`.
 Type LLVMTypeConverter::convertMemRefType(MemRefType type) {
   // When converting a MemRefType to a struct with descriptor fields, do not
   // unpack the `sizes` and `strides` arrays.
   SmallVector<LLVM::LLVMType, 5> types =
       getMemRefDescriptorFields(type, /*unpackAggregates=*/false);
-  return LLVM::LLVMType::getStructTy(&getContext(), types);
+  return LLVM::LLVMStructType::getLiteral(&getContext(), types);
 }
 
 static constexpr unsigned kRankInUnrankedMemRefDescriptor = 0;
 static constexpr unsigned kPtrInUnrankedMemRefDescriptor = 1;
 
 /// Convert an unranked memref type into a list of non-aggregate LLVM IR types
 /// that will form the unranked memref descriptor. In particular, the fields
 /// for an unranked memref descriptor are:
 /// 1. index-typed rank, the dynamic rank of this MemRef
 /// 2. void* ptr, pointer to the static ranked MemRef descriptor. This will be
 ///    stack allocated (alloca) copy of a MemRef descriptor that got casted to
 ///    be unranked.
 SmallVector<LLVM::LLVMType, 2>
 LLVMTypeConverter::getUnrankedMemRefDescriptorFields() {
-  return {getIndexType(), LLVM::LLVMType::getInt8PtrTy(&getContext())};
+  return {getIndexType(), LLVM::LLVMPointerType::get(
+                              LLVM::LLVMIntegerType::get(&getContext(), 8))};
 }
 
 Type LLVMTypeConverter::convertUnrankedMemRefType(UnrankedMemRefType type) {
-  return LLVM::LLVMType::getStructTy(&getContext(),
+  return LLVM::LLVMStructType::getLiteral(&getContext(),
                                           getUnrankedMemRefDescriptorFields());
 }
 
 /// Convert a memref type to a bare pointer to the memref element type.
 Type LLVMTypeConverter::convertMemRefToBarePtr(BaseMemRefType type) {
   if (type.isa<UnrankedMemRefType>())
     // Unranked memref is not supported in the bare pointer calling convention.
     return {};
 

 // Convert an n-D vector type to an LLVM vector type via (n-1)-D array type when
 // n > 1.
 // For example, `vector<4 x f32>` converts to `!llvm.type<"<4 x float>">` and
 // `vector<4 x 8 x 16 f32>` converts to `!llvm<"[4 x [8 x <16 x float>]]">`.
 Type LLVMTypeConverter::convertVectorType(VectorType type) {
   auto elementType = unwrap(convertType(type.getElementType()));
   if (!elementType)
     return {};
-  auto vectorType =
-      LLVM::LLVMType::getVectorTy(elementType, type.getShape().back());
+  LLVM::LLVMType vectorType =
+      LLVM::LLVMFixedVectorType::get(elementType, type.getShape().back());
   auto shape = type.getShape();
   for (int i = shape.size() - 2; i >= 0; --i)
-    vectorType = LLVM::LLVMType::getArrayTy(vectorType, shape[i]);
+    vectorType = LLVM::LLVMArrayType::get(vectorType, shape[i]);
   return vectorType;
 }
 
 /// Convert a type in the context of the default or bare pointer calling
 /// convention. Calling convention sensitive types, such as MemRefType and
 /// UnrankedMemRefType, are converted following the specific rules for the
 /// calling convention. Calling convention independent types are converted
 /// following the default LLVM type conversions.
return builder.create<LLVM::ExtractValueOp>(
       loc, indexType, value,
       builder.getI64ArrayAttr({kSizePosInMemRefDescriptor, pos}));
 }
 
 Value MemRefDescriptor::size(OpBuilder &builder, Location loc, Value pos,
                              int64_t rank) {
   auto indexTy = indexType.cast<LLVM::LLVMType>();
   auto indexPtrTy = LLVM::LLVMPointerType::get(indexTy);
-  auto arrayTy = LLVM::LLVMType::getArrayTy(indexTy, rank);
+  auto arrayTy = LLVM::LLVMArrayType::get(indexTy, rank);
   auto arrayPtrTy = LLVM::LLVMPointerType::get(arrayTy);
 
   // Copy size values to stack-allocated memory.
   auto zero = createIndexAttrConstant(builder, loc, indexType, 0);
   auto one = createIndexAttrConstant(builder, loc, indexType, 1);
   auto sizes = builder.create<LLVM::ExtractValueOp>(
       loc, arrayTy, value,
       builder.getI64ArrayAttr({kSizePosInMemRefDescriptor}));
void UnrankedMemRefDescriptor::setOffset(OpBuilder &builder, Location loc,
   builder.create<LLVM::StoreOp>(loc, offset, offsetGep);
 }
 
 Value UnrankedMemRefDescriptor::sizeBasePtr(
     OpBuilder &builder, Location loc, LLVMTypeConverter &typeConverter,
     Value memRefDescPtr, LLVM::LLVMPointerType elemPtrPtrType) {
   LLVM::LLVMType elemPtrTy = elemPtrPtrType.getElementType();
   LLVM::LLVMType indexTy = typeConverter.getIndexType();
-  LLVM::LLVMType structPtrTy = LLVM::LLVMPointerType::get(
-      LLVM::LLVMType::getStructTy(elemPtrTy, elemPtrTy, indexTy, indexTy));
+  LLVM::LLVMType structPtrTy =
+      LLVM::LLVMPointerType::get(LLVM::LLVMStructType::getLiteral(
+          indexTy.getContext(), {elemPtrTy, elemPtrTy, indexTy, indexTy}));
   Value structPtr =
       builder.create<LLVM::BitcastOp>(loc, structPtrTy, memRefDescPtr);
 
   LLVM::LLVMType int32_type =
       unwrap(typeConverter.convertType(builder.getI32Type()));
   Value zero =
       createIndexAttrConstant(builder, loc, typeConverter.getIndexType(), 0);
   Value three = builder.create<LLVM::ConstantOp>(loc, int32_type,

 }
 
 LLVM::LLVMType ConvertToLLVMPattern::getIndexType() const {
   return getTypeConverter()->getIndexType();
 }
 
 LLVM::LLVMType
 ConvertToLLVMPattern::getIntPtrType(unsigned addressSpace) const {
-  return LLVM::LLVMType::getIntNTy(
+  return LLVM::LLVMIntegerType::get(
       &getTypeConverter()->getContext(),
       getTypeConverter()->getPointerBitwidth(addressSpace));
 }
 
 LLVM::LLVMType ConvertToLLVMPattern::getVoidType() const {
-  return LLVM::LLVMType::getVoidTy(&getTypeConverter()->getContext());
+  return LLVM::LLVMVoidType::get(&getTypeConverter()->getContext());
 }
 
 LLVM::LLVMType ConvertToLLVMPattern::getVoidPtrType() const {
-  return LLVM::LLVMType::getInt8PtrTy(&getTypeConverter()->getContext());
+  return LLVM::LLVMPointerType::get(
+      LLVM::LLVMIntegerType::get(&getTypeConverter()->getContext(), 8));
 }
 
 Value ConvertToLLVMPattern::createIndexConstant(
     ConversionPatternRewriter &builder, Location loc, uint64_t value) const {
   return createIndexAttrConstant(builder, loc, getIndexType(), value);
 }
 
 Value ConvertToLLVMPattern::getStridedElementPtr(
matchAndRewrite(AssertOp op, ArrayRef<Value> operands,
     AssertOp::Adaptor transformed(operands);
 
     // Insert the `abort` declaration if necessary.
     auto module = op->getParentOfType<ModuleOp>();
     auto abortFunc = module.lookupSymbol<LLVM::LLVMFuncOp>("abort");
     if (!abortFunc) {
       OpBuilder::InsertionGuard guard(rewriter);
       rewriter.setInsertionPointToStart(module.getBody());
-      auto abortFuncTy =
-          LLVM::LLVMType::getFunctionTy(getVoidType(), {}, /*isVarArg=*/false);
+      auto abortFuncTy = LLVM::LLVMFunctionType::get(getVoidType(), {});
       abortFunc = rewriter.create<LLVM::LLVMFuncOp>(rewriter.getUnknownLoc(),
                                                     "abort", abortFuncTy);
     }
 
     // Split block at `assert` operation.
     Block *opBlock = rewriter.getInsertionBlock();
     auto opPosition = rewriter.getInsertionPoint();
     Block *continuationBlock = rewriter.splitBlock(opBlock, opPosition);
Value createAllocCall(Location loc, StringRef name, Type ptrType,
                         ArrayRef<Value> params, ModuleOp module,
                         ConversionPatternRewriter &rewriter) const {
     SmallVector<LLVM::LLVMType, 2> paramTypes;
     auto allocFuncOp = module.lookupSymbol<LLVM::LLVMFuncOp>(name);
     if (!allocFuncOp) {
       for (Value param : params)
         paramTypes.push_back(param.getType().cast<LLVM::LLVMType>());
       auto allocFuncType =
-          LLVM::LLVMType::getFunctionTy(getVoidPtrType(), paramTypes,
-                                        /*isVarArg=*/false);
+          LLVM::LLVMFunctionType::get(getVoidPtrType(), paramTypes);
       OpBuilder::InsertionGuard guard(rewriter);
       rewriter.setInsertionPointToStart(module.getBody());
       allocFuncOp = rewriter.create<LLVM::LLVMFuncOp>(rewriter.getUnknownLoc(),
                                                       name, allocFuncType);
     }
     auto allocFuncSymbol = rewriter.getSymbolRefAttr(allocFuncOp);
     auto allocatedPtr = rewriter
                             .create<LLVM::CallOp>(loc, getVoidPtrType(),
static LogicalResult copyUnrankedDescriptors(OpBuilder &builder, Location loc,
 
   // Compute allocation sizes.
   SmallVector<Value, 4> sizes;
   UnrankedMemRefDescriptor::computeSizes(builder, loc, typeConverter,
                                          unrankedMemrefs, sizes);
 
   // Get frequently used types.
   MLIRContext *context = builder.getContext();
-  auto voidType = LLVM::LLVMType::getVoidTy(context);
-  auto voidPtrType = LLVM::LLVMType::getInt8PtrTy(context);
-  auto i1Type = LLVM::LLVMType::getInt1Ty(context);
+  auto voidType = LLVM::LLVMVoidType::get(context);
+  LLVM::LLVMType voidPtrType =
+      LLVM::LLVMPointerType::get(LLVM::LLVMIntegerType::get(context, 8));
+  auto i1Type = LLVM::LLVMIntegerType::get(context, 1);
   LLVM::LLVMType indexType = typeConverter.getIndexType();
 
   // Find the malloc and free, or declare them if necessary.
   auto module = builder.getInsertionPoint()->getParentOfType<ModuleOp>();
   auto mallocFunc = module.lookupSymbol<LLVM::LLVMFuncOp>("malloc");
   if (!mallocFunc && toDynamic) {
     OpBuilder::InsertionGuard guard(builder);
     builder.setInsertionPointToStart(module.getBody());
     mallocFunc = builder.create<LLVM::LLVMFuncOp>(
         builder.getUnknownLoc(), "malloc",
-        LLVM::LLVMType::getFunctionTy(
-            voidPtrType, llvm::makeArrayRef(indexType), /*isVarArg=*/false));
+        LLVM::LLVMFunctionType::get(voidPtrType, llvm::makeArrayRef(indexType),
+                                    /*isVarArg=*/false));
   }
   auto freeFunc = module.lookupSymbol<LLVM::LLVMFuncOp>("free");
   if (!freeFunc && !toDynamic) {
     OpBuilder::InsertionGuard guard(builder);
     builder.setInsertionPointToStart(module.getBody());
     freeFunc = builder.create<LLVM::LLVMFuncOp>(
         builder.getUnknownLoc(), "free",
-        LLVM::LLVMType::getFunctionTy(voidType, llvm::makeArrayRef(voidPtrType),
-                                      /*isVarArg=*/false));
+        LLVM::LLVMFunctionType::get(voidType, llvm::makeArrayRef(voidPtrType),
   }
 
   // Initialize shared constants.
   Value zero =
       builder.create<LLVM::ConstantOp>(loc, i1Type, builder.getBoolAttr(false));
 
   unsigned unrankedMemrefPos = 0;
   for (unsigned i = 0, e = operands.size(); i < e; ++i) {
matchAndRewrite(DeallocOp op, ArrayRef<Value> operands,
     auto freeFunc =
         op->getParentOfType<ModuleOp>().lookupSymbol<LLVM::LLVMFuncOp>("free");
     if (!freeFunc) {
       OpBuilder::InsertionGuard guard(rewriter);
       rewriter.setInsertionPointToStart(
           op->getParentOfType<ModuleOp>().getBody());
       freeFunc = rewriter.create<LLVM::LLVMFuncOp>(
           rewriter.getUnknownLoc(), "free",
-          LLVM::LLVMType::getFunctionTy(getVoidType(), getVoidPtrType(),
-                                        /*isVarArg=*/false));
+          LLVM::LLVMFunctionType::get(getVoidType(), getVoidPtrType()));
     }
 
     MemRefDescriptor memref(transformed.memref());
     Value casted = rewriter.create<LLVM::BitcastOp>(
         op.getLoc(), getVoidPtrType(),
         memref.allocatedPtr(rewriter, op.getLoc()));
     rewriter.replaceOpWithNewOp<LLVM::CallOp>(
         op, TypeRange(), rewriter.getSymbolRefAttr(freeFunc), casted);
convertGlobalMemrefTypeToLLVM(MemRefType type,
   // this to a 1D array. However, for global_memref's with an initial value,
   // we do not intend to flatten the ElementsAttribute when going from std ->
   // LLVM dialect, so the LLVM type needs to me a multi-dimension array.
   LLVM::LLVMType elementType =
       unwrap(typeConverter.convertType(type.getElementType()));
   LLVM::LLVMType arrayTy = elementType;
   // Shape has the outermost dim at index 0, so need to walk it backwards
   for (int64_t dim : llvm::reverse(type.getShape()))
-    arrayTy = LLVM::LLVMType::getArrayTy(arrayTy, dim);
+    arrayTy = LLVM::LLVMArrayType::get(arrayTy, dim);
   return arrayTy;
 }
 
 /// GlobalMemrefOp is lowered to a LLVM Global Variable.
 struct GlobalMemrefOpLowering : public ConvertOpToLLVMPattern<GlobalMemrefOp> {
   using ConvertOpToLLVMPattern<GlobalMemrefOp>::ConvertOpToLLVMPattern;
 
   LogicalResult
convertSourceMemRefToDescriptor(ConversionPatternRewriter &rewriter,
     rewriter.create<LLVM::BrOp>(loc, ValueRange({resultRankMinusOne, oneIndex}),
                                 condBlock);
     rewriter.setInsertionPointToStart(condBlock);
     Value indexArg = condBlock->getArgument(0);
     Value strideArg = condBlock->getArgument(1);
 
     Value zeroIndex = createIndexConstant(rewriter, loc, 0);
     Value pred = rewriter.create<LLVM::ICmpOp>(
-        loc, LLVM::LLVMType::getInt1Ty(rewriter.getContext()),
+        loc, LLVM::LLVMIntegerType::get(rewriter.getContext(), 1),
         LLVM::ICmpPredicate::sge, indexArg, zeroIndex);
 
     Block *bodyBlock =
         rewriter.splitBlock(condBlock, rewriter.getInsertionPoint());
     rewriter.setInsertionPointToStart(bodyBlock);
 
     // Copy size from shape to descriptor.
     LLVM::LLVMType llvmIndexPtrType = LLVM::LLVMPointerType::get(indexType);
for (auto &nestedOp : entryBlock.without_terminator()) {
       mapping.map(nestedOp.getResults(), clone->getResults());
     }
     Value result = mapping.lookup(entryBlock.getTerminator()->getOperand(0));
 
     // Prepare the epilog of the loop block.
     // Append the cmpxchg op to the end of the loop block.
     auto successOrdering = LLVM::AtomicOrdering::acq_rel;
     auto failureOrdering = LLVM::AtomicOrdering::monotonic;
-    auto boolType = LLVM::LLVMType::getInt1Ty(rewriter.getContext());
-    auto pairType = LLVM::LLVMType::getStructTy(valueType, boolType);
+    auto boolType = LLVM::LLVMIntegerType::get(rewriter.getContext(), 1);
+    auto pairType = LLVM::LLVMStructType::getLiteral(rewriter.getContext(),
+                                                     {valueType, boolType});
     auto cmpxchg = rewriter.create<LLVM::AtomicCmpXchgOp>(
         loc, pairType, dataPtr, loopArgument, result, successOrdering,
         failureOrdering);
     // Extract the %new_loaded and %ok values from the pair.
     Value newLoaded = rewriter.create<LLVM::ExtractValueOp>(
         loc, valueType, cmpxchg, rewriter.getI64ArrayAttr({0}));
     Value ok = rewriter.create<LLVM::ExtractValueOp>(
         loc, boolType, cmpxchg, rewriter.getI64ArrayAttr({1}));
Type LLVMTypeConverter::packFunctionResults(ArrayRef<Type> types) {
   for (auto t : types) {
     auto converted =
         convertCallingConventionType(t).dyn_cast_or_null<LLVM::LLVMType>();
     if (!converted)
       return {};
     resultTypes.push_back(converted);
   }
 
-  return LLVM::LLVMType::getStructTy(&getContext(), resultTypes);
+  return LLVM::LLVMStructType::getLiteral(&getContext(), resultTypes);
 }
 
 Value LLVMTypeConverter::promoteOneMemRefDescriptor(Location loc, Value operand,
                                                     OpBuilder &builder) {
   auto *context = builder.getContext();
-  auto int64Ty = LLVM::LLVMType::getInt64Ty(builder.getContext());
+  auto int64Ty = LLVM::LLVMIntegerType::get(builder.getContext(), 64);
   auto indexType = IndexType::get(context);
   // Alloca with proper alignment. We do not expect optimizations of this
   // alloca op and so we omit allocating at the entry block.
   auto ptrType =
       LLVM::LLVMPointerType::get(operand.getType().cast<LLVM::LLVMType>());
   Value one = builder.create<LLVM::ConstantOp>(loc, int64Ty,
                                                IntegerAttr::get(indexType, 1));
   Value allocated =

mlir/lib/Conversion/VectorToLLVM/ConvertVectorToLLVM.cpp

 static LogicalResult getIndexedPtrs(ConversionPatternRewriter &rewriter,
                                     Location loc, Value memref, Value indices,
                                     MemRefType memRefType, VectorType vType,
                                     Type iType, Value &ptrs) {
   Value base;
   if (failed(getBase(rewriter, loc, memref, memRefType, base)))
     return failure();
   auto pType = MemRefDescriptor(memref).getElementPtrType();
-  auto ptrsType = LLVM::LLVMType::getVectorTy(pType, vType.getDimSize(0));
+  auto ptrsType = LLVM::LLVMFixedVectorType::get(pType, vType.getDimSize(0));
   ptrs = rewriter.create<LLVM::GEPOp>(loc, ptrsType, base, indices);
   return success();
 }
 
 static LogicalResult
 replaceTransferOpWithLoadOrStore(ConversionPatternRewriter &rewriter,
                                  LLVMTypeConverter &typeConverter, Location loc,
                                  TransferReadOp xferOp,
if (positionAttrs.size() > 1) {
           ArrayAttr::get(positionAttrs.drop_back(), context);
       extracted = rewriter.create<LLVM::ExtractValueOp>(
           loc, typeConverter->convertType(oneDVectorType), extracted,
           nMinusOnePositionAttrs);
     }
 
     // Remaining extraction of element from 1-D LLVM vector
     auto position = positionAttrs.back().cast<IntegerAttr>();
-    auto i64Type = LLVM::LLVMType::getInt64Ty(rewriter.getContext());
+    auto i64Type = LLVM::LLVMIntegerType::get(rewriter.getContext(), 64);
     auto constant = rewriter.create<LLVM::ConstantOp>(loc, i64Type, position);
     extracted =
         rewriter.create<LLVM::ExtractElementOp>(loc, extracted, constant);
     rewriter.replaceOp(extractOp, extracted);
 
     return success();
   }
 };
if (positionAttrs.size() > 1) {
       auto nMinusOnePositionAttrs =
           ArrayAttr::get(positionAttrs.drop_back(), context);
       extracted = rewriter.create<LLVM::ExtractValueOp>(
           loc, typeConverter->convertType(oneDVectorType), extracted,
           nMinusOnePositionAttrs);
     }
 
     // Insertion of an element into a 1-D LLVM vector.
-    auto i64Type = LLVM::LLVMType::getInt64Ty(rewriter.getContext());
+    auto i64Type = LLVM::LLVMIntegerType::get(rewriter.getContext(), 64);
     auto constant = rewriter.create<LLVM::ConstantOp>(loc, i64Type, position);
     Value inserted = rewriter.create<LLVM::InsertElementOp>(
         loc, typeConverter->convertType(oneDVectorType), extracted,
         adaptor.source(), constant);
 
     // Potential insertion of resulting 1-D vector into array.
     if (positionAttrs.size() > 1) {
       auto nMinusOnePositionAttrs =
matchAndRewrite(vector::TypeCastOp castOp, ArrayRef<Value> operands,
     if (!targetStrides)
       return failure();
     // Only support static strides for now, regardless of contiguity.
     if (llvm::any_of(*targetStrides, [](int64_t stride) {
           return ShapedType::isDynamicStrideOrOffset(stride);
         }))
       return failure();
 
-    auto int64Ty = LLVM::LLVMType::getInt64Ty(rewriter.getContext());
+    auto int64Ty = LLVM::LLVMIntegerType::get(rewriter.getContext(), 64);
 
     // Create descriptor.
     auto desc = MemRefDescriptor::undef(rewriter, loc, llvmTargetDescriptorTy);
     Type llvmTargetElementTy = desc.getElementPtrType();
     // Set allocated ptr.
     Value allocated = sourceMemRef.allocatedPtr(rewriter, loc);
     allocated =
         rewriter.create<LLVM::BitcastOp>(loc, llvmTargetElementTy, allocated);
private:
   void emitRanks(ConversionPatternRewriter &rewriter, Operation *op,
                  Value value, VectorType vectorType, Operation *printer,
                  int64_t rank, PrintConversion conversion) const {
     Location loc = op->getLoc();
     if (rank == 0) {
       switch (conversion) {
       case PrintConversion::ZeroExt64:
         value = rewriter.create<ZeroExtendIOp>(
-            loc, value, LLVM::LLVMType::getInt64Ty(rewriter.getContext()));
+            loc, value, LLVM::LLVMIntegerType::get(rewriter.getContext(), 64));
         break;
       case PrintConversion::SignExt64:
         value = rewriter.create<SignExtendIOp>(
-            loc, value, LLVM::LLVMType::getInt64Ty(rewriter.getContext()));
+            loc, value, LLVM::LLVMIntegerType::get(rewriter.getContext(), 64));
         break;
       case PrintConversion::None:
         break;
       }
       emitCall(rewriter, loc, printer, value);
       return;
     }
 
static Operation *getPrint(Operation *op, StringRef name,
                              ArrayRef<LLVM::LLVMType> params) {
     auto module = op->getParentOfType<ModuleOp>();
     auto func = module.lookupSymbol<LLVM::LLVMFuncOp>(name);
     if (func)
       return func;
     OpBuilder moduleBuilder(module.getBodyRegion());
     return moduleBuilder.create<LLVM::LLVMFuncOp>(
         op->getLoc(), name,
-        LLVM::LLVMType::getFunctionTy(
-            LLVM::LLVMType::getVoidTy(op->getContext()), params,
-            /*isVarArg=*/false));
+        LLVM::LLVMFunctionType::get(LLVM::LLVMVoidType::get(op->getContext()),
+                                    params));
   }
 
   // Helpers for method names.
   Operation *getPrintI64(Operation *op) const {
     return getPrint(op, "printI64",
-                    LLVM::LLVMType::getInt64Ty(op->getContext()));
+                    LLVM::LLVMIntegerType::get(op->getContext(), 64));
   }
   Operation *getPrintU64(Operation *op) const {
     return getPrint(op, "printU64",
-                    LLVM::LLVMType::getInt64Ty(op->getContext()));
+                    LLVM::LLVMIntegerType::get(op->getContext(), 64));
   }
   Operation *getPrintFloat(Operation *op) const {
-    return getPrint(op, "printF32",
-                    LLVM::LLVMType::getFloatTy(op->getContext()));
+    return getPrint(op, "printF32", LLVM::LLVMFloatType::get(op->getContext()));
   }
   Operation *getPrintDouble(Operation *op) const {
     return getPrint(op, "printF64",
-                    LLVM::LLVMType::getDoubleTy(op->getContext()));
+                    LLVM::LLVMDoubleType::get(op->getContext()));
   }
   Operation *getPrintOpen(Operation *op) const {
     return getPrint(op, "printOpen", {});
   }
   Operation *getPrintClose(Operation *op) const {
     return getPrint(op, "printClose", {});
   }
   Operation *getPrintComma(Operation *op) const {

mlir/lib/Conversion/VectorToROCDL/VectorToROCDL.cpp

Value constConfig = rewriter.create<LLVM::ConstantOp>(
         loc, toLLVMTy(i32Vecx4),
         DenseElementsAttr::get(i32Vecx4, ArrayRef<int32_t>(constConfigAttr)));
 
     // Treat first two element of <4 x i32> as i64, and save the dataPtr
     // to it.
     Type i64Ty = rewriter.getIntegerType(64);
     Value i64x2Ty = rewriter.create<LLVM::BitcastOp>(
         loc,
-        LLVM::LLVMType::getVectorTy(
+        LLVM::LLVMFixedVectorType::get(
             toLLVMTy(i64Ty).template cast<LLVM::LLVMType>(), 2),
         constConfig);
     Value dataPtrAsI64 = rewriter.create<LLVM::PtrToIntOp>(
         loc, toLLVMTy(i64Ty).template cast<LLVM::LLVMType>(), dataPtr);
     Value zero = this->createIndexConstant(rewriter, loc, 0);
     Value dwordConfig = rewriter.create<LLVM::InsertElementOp>(
         loc,
-        LLVM::LLVMType::getVectorTy(
+        LLVM::LLVMFixedVectorType::get(
             toLLVMTy(i64Ty).template cast<LLVM::LLVMType>(), 2),
         i64x2Ty, dataPtrAsI64, zero);
     dwordConfig =
         rewriter.create<LLVM::BitcastOp>(loc, toLLVMTy(i32Vecx4), dwordConfig);
 
     // 2. Rewrite op as a buffer read or write.
     Value int1False = rewriter.create<LLVM::ConstantOp>(
         loc, toLLVMTy(rewriter.getIntegerType(1)),

mlir/lib/Dialect/LLVMIR/IR/LLVMDialect.cpp

if (std::is_same<CmpPredicateType, ICmpPredicate>()) {
     predicateValue = static_cast<int64_t>(predicate.getValue());
   }
 
   result.attributes.set("predicate",
                         parser.getBuilder().getI64IntegerAttr(predicateValue));
 
   // The result type is either i1 or a vector type <? x i1> if the inputs are
   // vectors.
-  auto resultType = LLVMType::getInt1Ty(builder.getContext());
+  LLVMType resultType = LLVMIntegerType::get(builder.getContext(), 1);
   auto argType = type.dyn_cast<LLVM::LLVMType>();
   if (!argType)
     return parser.emitError(trailingTypeLoc, "expected LLVM IR dialect type");
   if (auto vecArgType = argType.dyn_cast<LLVM::LLVMFixedVectorType>())
-    resultType = LLVMType::getVectorTy(resultType, vecArgType.getNumElements());
+    resultType =
+        LLVMFixedVectorType::get(resultType, vecArgType.getNumElements());
   assert(!argType.isa<LLVM::LLVMScalableVectorType>() &&
          "unhandled scalable vector");
 
   result.addTypes({resultType});
   return success();
 }
 
 //===----------------------------------------------------------------------===//
if (isDirect) {
     // Construct the LLVM IR Dialect function type that the first operand
     // should match.
     if (funcType.getNumResults() > 1)
       return parser.emitError(trailingTypeLoc,
                               "expected function with 0 or 1 result");
 
     LLVM::LLVMType llvmResultType;
     if (funcType.getNumResults() == 0) {
-      llvmResultType = LLVM::LLVMType::getVoidTy(builder.getContext());
+      llvmResultType = LLVM::LLVMVoidType::get(builder.getContext());
     } else {
       llvmResultType = funcType.getResult(0).dyn_cast<LLVM::LLVMType>();
       if (!llvmResultType)
         return parser.emitError(trailingTypeLoc,
                                 "expected result to have LLVM type");
     }
 
     SmallVector<LLVM::LLVMType, 8> argTypes;
     argTypes.reserve(funcType.getNumInputs());
     for (Type ty : funcType.getInputs()) {
       if (auto argType = ty.dyn_cast<LLVM::LLVMType>())
         argTypes.push_back(argType);
       else
         return parser.emitError(trailingTypeLoc,
                                 "expected LLVM types as inputs");
     }
 
-    auto llvmFuncType = LLVM::LLVMType::getFunctionTy(llvmResultType, argTypes,
-                                                      /*isVarArg=*/false);
+    auto llvmFuncType = LLVM::LLVMFunctionType::get(llvmResultType, argTypes);
     auto wrappedFuncType = LLVM::LLVMPointerType::get(llvmFuncType);
 
     auto funcArguments = llvm::makeArrayRef(operands).drop_front();
 
     // Make sure that the first operand (indirect callee) matches the wrapped
     // LLVM IR function type, and that the types of the other call operands
     // match the types of the function arguments.
     if (parser.resolveOperand(operands[0], wrappedFuncType, result.operands) ||
if (isDirect) {
     // should match.
     if (funcType.getNumResults() > 1)
       return parser.emitError(trailingTypeLoc,
                               "expected function with 0 or 1 result");
 
     Builder &builder = parser.getBuilder();
     LLVM::LLVMType llvmResultType;
     if (funcType.getNumResults() == 0) {
-      llvmResultType = LLVM::LLVMType::getVoidTy(builder.getContext());
+      llvmResultType = LLVM::LLVMVoidType::get(builder.getContext());
     } else {
       llvmResultType = funcType.getResult(0).dyn_cast<LLVM::LLVMType>();
       if (!llvmResultType)
         return parser.emitError(trailingTypeLoc,
                                 "expected result to have LLVM type");
     }
 
     SmallVector<LLVM::LLVMType, 8> argTypes;
     argTypes.reserve(funcType.getNumInputs());
     for (int i = 0, e = funcType.getNumInputs(); i < e; ++i) {
       auto argType = funcType.getInput(i).dyn_cast<LLVM::LLVMType>();
       if (!argType)
         return parser.emitError(trailingTypeLoc,
                                 "expected LLVM types as inputs");
       argTypes.push_back(argType);
     }
-    auto llvmFuncType = LLVM::LLVMType::getFunctionTy(llvmResultType, argTypes,
-                                                      /*isVarArg=*/false);
+    auto llvmFuncType = LLVM::LLVMFunctionType::get(llvmResultType, argTypes);
     auto wrappedFuncType = LLVM::LLVMPointerType::get(llvmFuncType);
 
     auto funcArguments =
         ArrayRef<OpAsmParser::OperandType>(operands).drop_front();
 
     // Make sure that the first operand (indirect callee) matches the wrapped
     // LLVM IR function type, and that the types of the other call operands
     // match the types of the function arguments.
static ParseResult parseGlobalOp(OpAsmParser &parser, OperationState &result) {
 
   if (types.size() > 1)
     return parser.emitError(parser.getNameLoc(), "expected zero or one type");
 
   Region &initRegion = *result.addRegion();
   if (types.empty()) {
     if (auto strAttr = value.dyn_cast_or_null<StringAttr>()) {
       MLIRContext *context = parser.getBuilder().getContext();
-      auto arrayType = LLVM::LLVMType::getArrayTy(
-          LLVM::LLVMType::getInt8Ty(context), strAttr.getValue().size());
+      auto arrayType = LLVM::LLVMArrayType::get(
+          LLVM::LLVMIntegerType::get(context, 8), strAttr.getValue().size());
       types.push_back(arrayType);
     } else {
       return parser.emitError(parser.getNameLoc(),
                               "type can only be omitted for string globals");
     }
   } else {
     OptionalParseResult parseResult =
         parser.parseOptionalRegion(initRegion, /*arguments=*/{},

 //===----------------------------------------------------------------------===//
 // Expects vector to be of wrapped LLVM vector type and position to be of
 // wrapped LLVM i32 type.
 void LLVM::ShuffleVectorOp::build(OpBuilder &b, OperationState &result,
                                   Value v1, Value v2, ArrayAttr mask,
                                   ArrayRef<NamedAttribute> attrs) {
   auto containerType = v1.getType().cast<LLVM::LLVMVectorType>();
   auto vType =
-      LLVMType::getVectorTy(containerType.getElementType(), mask.size());
+      LLVMFixedVectorType::get(containerType.getElementType(), mask.size());
   build(b, result, vType, v1, v2, mask);
   result.addAttributes(attrs);
 }
 
 static void printShuffleVectorOp(OpAsmPrinter &p, ShuffleVectorOp &op) {
   p << op.getOperationName() << ' ' << op.v1() << ", " << op.v2() << " "
     << op.mask();
   p.printOptionalAttrDict(op.getAttrs(), {"mask"});
if (parser.getCurrentLocation(&loc) || parser.parseOperand(v1) ||
       parser.resolveOperand(v1, typeV1, result.operands) ||
       parser.resolveOperand(v2, typeV2, result.operands))
     return failure();
   auto containerType = typeV1.dyn_cast<LLVM::LLVMVectorType>();
   if (!containerType)
     return parser.emitError(
         loc, "expected LLVM IR dialect vector type for operand #1");
   auto vType =
-      LLVMType::getVectorTy(containerType.getElementType(), maskAttr.size());
+      LLVMFixedVectorType::get(containerType.getElementType(), maskAttr.size());
   result.addTypes(vType);
   return success();
 }
 
 //===----------------------------------------------------------------------===//
 // Implementations for LLVM::LLVMFuncOp.
 //===----------------------------------------------------------------------===//
 
if (!llvmTy) {
       parser.emitError(loc, "failed to construct function type: expected LLVM "
                             "type for function arguments");
       return {};
     }
     llvmInputs.push_back(llvmTy);
   }
 
   // No output is denoted as "void" in LLVM type system.
-  LLVMType llvmOutput = outputs.empty() ? LLVMType::getVoidTy(b.getContext())
+  LLVMType llvmOutput = outputs.empty() ? LLVMVoidType::get(b.getContext())
                                         : outputs.front().dyn_cast<LLVMType>();
   if (!llvmOutput) {
     parser.emitError(loc, "failed to construct function type: expected LLVM "
                           "type for function results");
     return {};
   }
-  return LLVMType::getFunctionTy(llvmOutput, llvmInputs,
-                                 variadicFlag.isVariadic());
+  return LLVMFunctionType::get(llvmOutput, llvmInputs,
 }
 
 // Parses an LLVM function.
 //
 // operation ::= `llvm.func` linkage? function-signature function-attributes?
 //               function-body
 //
 static ParseResult parseLLVMFuncOp(OpAsmParser &parser,
if (parser.parseOperand(ptr) || parser.parseComma() ||
       parser.parseOptionalAttrDict(result.attributes) ||
       parser.parseColonType(type) ||
       parser.resolveOperand(ptr, LLVM::LLVMPointerType::get(type),
                             result.operands) ||
       parser.resolveOperand(cmp, type, result.operands) ||
       parser.resolveOperand(val, type, result.operands))
     return failure();
 
-  auto boolType = LLVMType::getInt1Ty(builder.getContext());
-  auto resultType = LLVMType::getStructTy(type, boolType);
+  auto boolType = LLVMIntegerType::get(builder.getContext(), 1);
+  auto resultType =
+      LLVMStructType::getLiteral(builder.getContext(), {type, boolType});
   result.addTypes(resultType);
 
   return success();
 }
 
 static LogicalResult verify(AtomicCmpXchgOp op) {
   auto ptrType = op.ptr().getType().cast<LLVM::LLVMPointerType>();
   if (!ptrType)
assert(builder.getInsertionBlock() &&
          "expected builder to point to a block constrained in an op");
   auto module =
       builder.getInsertionBlock()->getParentOp()->getParentOfType<ModuleOp>();
   assert(module && "builder points to an op outside of a module");
 
   // Create the global at the entry of the module.
   OpBuilder moduleBuilder(module.getBodyRegion());
   MLIRContext *ctx = builder.getContext();
-  auto type =
-      LLVM::LLVMType::getArrayTy(LLVM::LLVMType::getInt8Ty(ctx), value.size());
+  auto type = LLVM::LLVMArrayType::get(LLVM::LLVMIntegerType::get(ctx, 8),
+                                       value.size());
   auto global = moduleBuilder.create<LLVM::GlobalOp>(
       loc, type, /*isConstant=*/true, linkage, name,
       builder.getStringAttr(value));
 
   // Get the pointer to the first character in the global string.
   Value globalPtr = builder.create<LLVM::AddressOfOp>(loc, global);
   Value cst0 = builder.create<LLVM::ConstantOp>(
-      loc, LLVM::LLVMType::getInt64Ty(ctx),
+      loc, LLVM::LLVMIntegerType::get(ctx, 64),
       builder.getIntegerAttr(builder.getIndexType(), 0));
-  return builder.create<LLVM::GEPOp>(loc, LLVM::LLVMType::getInt8PtrTy(ctx),
-                                     globalPtr, ValueRange{cst0, cst0});
+  return builder.create<LLVM::GEPOp>(
+      loc, LLVM::LLVMPointerType::get(LLVMIntegerType::get(ctx, 8)), globalPtr,
+      ValueRange{cst0, cst0});
 }
 
 bool mlir::LLVM::satisfiesLLVMModule(Operation *op) {
   return op->hasTrait<OpTrait::SymbolTable>() &&
          op->hasTrait<OpTrait::IsIsolatedFromAbove>();
 }

mlir/lib/Dialect/LLVMIR/IR/LLVMTypes.cpp

 bool LLVMType::classof(Type type) {
   return llvm::isa<LLVMDialect>(type.getDialect());
 }
 
 LLVMDialect &LLVMType::getDialect() {
   return static_cast<LLVMDialect &>(Type::getDialect());
 }
 
-//----------------------------------------------------------------------------//
-// Utilities used to generate floating point types.
-
-LLVMType LLVMType::getDoubleTy(MLIRContext *context) {
-  return LLVMDoubleType::get(context);
-}
-
-LLVMType LLVMType::getFloatTy(MLIRContext *context) {
-  return LLVMFloatType::get(context);
-}
-
-LLVMType LLVMType::getBFloatTy(MLIRContext *context) {
-  return LLVMBFloatType::get(context);
-}
-
-LLVMType LLVMType::getHalfTy(MLIRContext *context) {
-  return LLVMHalfType::get(context);
-}
-
-LLVMType LLVMType::getFP128Ty(MLIRContext *context) {
-  return LLVMFP128Type::get(context);
-}
-
-LLVMType LLVMType::getX86_FP80Ty(MLIRContext *context) {
-  return LLVMX86FP80Type::get(context);
-}
-
-//----------------------------------------------------------------------------//
-// Utilities used to generate integer types.
-
-LLVMType LLVMType::getIntNTy(MLIRContext *context, unsigned numBits) {
-  return LLVMIntegerType::get(context, numBits);
-}
-
-LLVMType LLVMType::getInt8PtrTy(MLIRContext *context) {
-  return LLVMPointerType::get(LLVMIntegerType::get(context, 8));
-}
-
-//----------------------------------------------------------------------------//
-// Utilities used to generate other miscellaneous types.
-
-LLVMType LLVMType::getArrayTy(LLVMType elementType, uint64_t numElements) {
-  return LLVMArrayType::get(elementType, numElements);
-}
-
-LLVMType LLVMType::getFunctionTy(LLVMType result, ArrayRef<LLVMType> params,
-                                 bool isVarArg) {
-  return LLVMFunctionType::get(result, params, isVarArg);
-}
-
-LLVMType LLVMType::getStructTy(MLIRContext *context,
-                               ArrayRef<LLVMType> elements, bool isPacked) {
-  return LLVMStructType::getLiteral(context, elements, isPacked);
-}
-
-LLVMType LLVMType::getVectorTy(LLVMType elementType, unsigned numElements) {
-  return LLVMFixedVectorType::get(elementType, numElements);
-}
-
-//----------------------------------------------------------------------------//
-// Void type utilities.
-
-LLVMType LLVMType::getVoidTy(MLIRContext *context) {
-  return LLVMVoidType::get(context);
-}
-
-//----------------------------------------------------------------------------//
-// Creation and setting of LLVM's identified struct types
-
-LLVMType LLVMType::createStructTy(MLIRContext *context,
-                                  ArrayRef<LLVMType> elements,
-                                  Optional<StringRef> name, bool isPacked) {
-  assert(name.hasValue() &&
-         "identified structs with no identifier not supported");
-  StringRef stringNameBase = name.getValueOr("");
-  std::string stringName = stringNameBase.str();
-  unsigned counter = 0;
-  do {
-    auto type = LLVMStructType::getIdentified(context, stringName);
-    if (type.isInitialized() || failed(type.setBody(elements, isPacked))) {
-      counter += 1;
-      stringName =
-          (Twine(stringNameBase) + "." + std::to_string(counter)).str();
-      continue;
-    }
-    return type;
-  } while (true);
-}
-
-LLVMType LLVMType::setStructTyBody(LLVMType structType,
-                                   ArrayRef<LLVMType> elements, bool isPacked) {
-  LogicalResult couldSet =
-      structType.cast<LLVMStructType>().setBody(elements, isPacked);
-  assert(succeeded(couldSet) && "failed to set the body");
-  (void)couldSet;
-  return structType;
-}
-
 //===----------------------------------------------------------------------===//
 // Array type.
+//===----------------------------------------------------------------------===//
 
 bool LLVMArrayType::isValidElementType(LLVMType type) {
   return !type.isa<LLVMVoidType, LLVMLabelType, LLVMMetadataType,
                    LLVMFunctionType, LLVMTokenType, LLVMScalableVectorType>();
 }
 
 LLVMArrayType LLVMArrayType::get(LLVMType elementType, unsigned numElements) {
   assert(elementType && "expected non-null subtype");
LLVMArrayType::verifyConstructionInvariants(Location loc, LLVMType elementType,
                                             unsigned numElements) {
   if (!isValidElementType(elementType))
     return emitError(loc, "invalid array element type: ") << elementType;
   return success();
 }
 
 //===----------------------------------------------------------------------===//
 // Function type.
+//===----------------------------------------------------------------------===//
 
 bool LLVMFunctionType::isValidArgumentType(LLVMType type) {
   return !type.isa<LLVMVoidType, LLVMFunctionType>();
 }
 
 bool LLVMFunctionType::isValidResultType(LLVMType type) {
   return !type.isa<LLVMFunctionType, LLVMMetadataType, LLVMLabelType>();
 }
for (LLVMType arg : arguments)
     if (!isValidArgumentType(arg))
       return emitError(loc, "invalid function argument type: ") << arg;
 
   return success();
 }
 
 //===----------------------------------------------------------------------===//
 // Integer type.
+//===----------------------------------------------------------------------===//
 
 LLVMIntegerType LLVMIntegerType::get(MLIRContext *ctx, unsigned bitwidth) {
   return Base::get(ctx, bitwidth);
 }
 
 LLVMIntegerType LLVMIntegerType::getChecked(Location loc, unsigned bitwidth) {
   return Base::getChecked(loc, bitwidth);
 }
 
 unsigned LLVMIntegerType::getBitWidth() { return getImpl()->bitwidth; }
 
 LogicalResult LLVMIntegerType::verifyConstructionInvariants(Location loc,
                                                             unsigned bitwidth) {
   constexpr int maxSupportedBitwidth = (1 << 24);
   if (bitwidth >= maxSupportedBitwidth)
     return emitError(loc, "integer type too wide");
   return success();
 }
 
 //===----------------------------------------------------------------------===//
 // Pointer type.
+//===----------------------------------------------------------------------===//
 
 bool LLVMPointerType::isValidElementType(LLVMType type) {
   return !type.isa<LLVMVoidType, LLVMTokenType, LLVMMetadataType,
                    LLVMLabelType>();
 }
 
 LLVMPointerType LLVMPointerType::get(LLVMType pointee, unsigned addressSpace) {
   assert(pointee && "expected non-null subtype");
LogicalResult LLVMPointerType::verifyConstructionInvariants(Location loc,
                                                             unsigned) {
   if (!isValidElementType(pointee))
     return emitError(loc, "invalid pointer element type: ") << pointee;
   return success();
 }
 
 //===----------------------------------------------------------------------===//
 // Struct type.
+//===----------------------------------------------------------------------===//
 
 bool LLVMStructType::isValidElementType(LLVMType type) {
   return !type.isa<LLVMVoidType, LLVMLabelType, LLVMMetadataType,
                    LLVMFunctionType, LLVMTokenType, LLVMScalableVectorType>();
 }
 
 LLVMStructType LLVMStructType::getIdentified(MLIRContext *context,
                                              StringRef name) {
   return Base::get(context, name, /*opaque=*/false);
 }
 
 LLVMStructType LLVMStructType::getIdentifiedChecked(Location loc,
                                                     StringRef name) {
   return Base::getChecked(loc, name, /*opaque=*/false);
 }
 
+LLVMStructType LLVMStructType::getNewIdentified(MLIRContext *context,
+                                                StringRef name,
+                                                ArrayRef<LLVMType> elements,
+                                                bool isPacked) {
+  std::string stringName = name.str();
+  unsigned counter = 0;
+  do {
+    auto type = LLVMStructType::getIdentified(context, stringName);
+    if (type.isInitialized() || failed(type.setBody(elements, isPacked))) {
+      counter += 1;
+      stringName = (Twine(name) + "." + std::to_string(counter)).str();
+      continue;
+    }
+    return type;
+  } while (true);
+}
+
 LLVMStructType LLVMStructType::getLiteral(MLIRContext *context,
                                           ArrayRef<LLVMType> types,
                                           bool isPacked) {
   return Base::get(context, types, isPacked);
 }
 
 LLVMStructType LLVMStructType::getLiteralChecked(Location loc,
                                                  ArrayRef<LLVMType> types,
for (LLVMType t : types)
     if (!isValidElementType(t))
       return emitError(loc, "invalid LLVM structure element type: ") << t;
 
   return success();
 }
 
 //===----------------------------------------------------------------------===//
 // Vector types.
+//===----------------------------------------------------------------------===//
 
 bool LLVMVectorType::isValidElementType(LLVMType type) {
   return type.isa<LLVMIntegerType, LLVMPointerType>() ||
          mlir::LLVM::isCompatibleFloatingPointType(type);
 }
 
 /// Support type casting functionality.
 bool LLVMVectorType::classof(Type type) {

mlir/lib/Dialect/LLVMIR/IR/NVVMDialect.cpp

for (auto &attr : result.attributes) {
     if (attr.first != "return_value_and_is_valid")
       continue;
     auto structType = type.dyn_cast<LLVM::LLVMStructType>();
     if (structType && !structType.getBody().empty())
       type = structType.getBody()[0];
     break;
   }
 
-  auto int32Ty = LLVM::LLVMType::getInt32Ty(parser.getBuilder().getContext());
+  auto int32Ty =
+      LLVM::LLVMIntegerType::get(parser.getBuilder().getContext(), 32);
   return parser.resolveOperands(ops, {int32Ty, type, int32Ty, int32Ty},
                                 parser.getNameLoc(), result.operands);
 }
 
 // <operation> ::= `llvm.nvvm.vote.ballot.sync %mask, %pred` : result_type
 static ParseResult parseNVVMVoteBallotOp(OpAsmParser &parser,
                                          OperationState &result) {
   MLIRContext *context = parser.getBuilder().getContext();
-  auto int32Ty = LLVM::LLVMType::getInt32Ty(context);
-  auto int1Ty = LLVM::LLVMType::getInt1Ty(context);
+  auto int32Ty = LLVM::LLVMIntegerType::get(context, 32);
+  auto int1Ty = LLVM::LLVMIntegerType::get(context, 1);
 
   SmallVector<OpAsmParser::OperandType, 8> ops;
   Type type;
   return failure(parser.parseOperandList(ops) ||
                  parser.parseOptionalAttrDict(result.attributes) ||
                  parser.parseColonType(type) ||
                  parser.addTypeToList(type, result.types) ||
                  parser.resolveOperands(ops, {int32Ty, int1Ty},
                                         parser.getNameLoc(), result.operands));
 }
 
 static LogicalResult verify(MmaOp op) {
   MLIRContext *context = op.getContext();
-  auto f16Ty = LLVM::LLVMType::getHalfTy(context);
-  auto f16x2Ty = LLVM::LLVMType::getVectorTy(f16Ty, 2);
-  auto f32Ty = LLVM::LLVMType::getFloatTy(context);
-  auto f16x2x4StructTy = LLVM::LLVMType::getStructTy(
+  auto f16Ty = LLVM::LLVMHalfType::get(context);
+  auto f16x2Ty = LLVM::LLVMFixedVectorType::get(f16Ty, 2);
+  auto f32Ty = LLVM::LLVMFloatType::get(context);
+  auto f16x2x4StructTy = LLVM::LLVMStructType::getLiteral(
       context, {f16x2Ty, f16x2Ty, f16x2Ty, f16x2Ty});
-  auto f32x8StructTy = LLVM::LLVMType::getStructTy(
+  auto f32x8StructTy = LLVM::LLVMStructType::getLiteral(
       context, {f32Ty, f32Ty, f32Ty, f32Ty, f32Ty, f32Ty, f32Ty, f32Ty});
 
   SmallVector<Type, 12> operand_types(op.getOperandTypes().begin(),
                                       op.getOperandTypes().end());
   if (operand_types != SmallVector<Type, 8>(8, f16x2Ty) &&
       operand_types != SmallVector<Type, 12>{f16x2Ty, f16x2Ty, f16x2Ty, f16x2Ty,
                                              f32Ty, f32Ty, f32Ty, f32Ty, f32Ty,
                                              f32Ty, f32Ty, f32Ty}) {

mlir/lib/Dialect/LLVMIR/IR/ROCDLDialect.cpp

static ParseResult parseROCDLMubufLoadOp(OpAsmParser &parser,
                                          OperationState &result) {
   SmallVector<OpAsmParser::OperandType, 8> ops;
   Type type;
   if (parser.parseOperandList(ops, 5) || parser.parseColonType(type) ||
       parser.addTypeToList(type, result.types))
     return failure();
 
   MLIRContext *context = parser.getBuilder().getContext();
-  auto int32Ty = LLVM::LLVMType::getInt32Ty(context);
-  auto int1Ty = LLVM::LLVMType::getInt1Ty(context);
-  auto i32x4Ty = LLVM::LLVMType::getVectorTy(int32Ty, 4);
+  auto int32Ty = LLVM::LLVMIntegerType::get(context, 32);
+  auto int1Ty = LLVM::LLVMIntegerType::get(context, 1);
+  auto i32x4Ty = LLVM::LLVMFixedVectorType::get(int32Ty, 4);
   return parser.resolveOperands(ops,
                                 {i32x4Ty, int32Ty, int32Ty, int1Ty, int1Ty},
                                 parser.getNameLoc(), result.operands);
 }
 
 // <operation> ::=
 //     `llvm.amdgcn.buffer.store.* %vdata, %rsrc, %vindex, %offset, %glc, %slc :
 //     result_type`
 static ParseResult parseROCDLMubufStoreOp(OpAsmParser &parser,
                                           OperationState &result) {
   SmallVector<OpAsmParser::OperandType, 8> ops;
   Type type;
   if (parser.parseOperandList(ops, 6) || parser.parseColonType(type))
     return failure();
 
   MLIRContext *context = parser.getBuilder().getContext();
-  auto int32Ty = LLVM::LLVMType::getInt32Ty(context);
-  auto int1Ty = LLVM::LLVMType::getInt1Ty(context);
-  auto i32x4Ty = LLVM::LLVMType::getVectorTy(int32Ty, 4);
+  auto int32Ty = LLVM::LLVMIntegerType::get(context, 32);
+  auto int1Ty = LLVM::LLVMIntegerType::get(context, 1);
+  auto i32x4Ty = LLVM::LLVMFixedVectorType::get(int32Ty, 4);
 
   if (parser.resolveOperands(ops,
                              {type, i32x4Ty, int32Ty, int32Ty, int1Ty, int1Ty},
                              parser.getNameLoc(), result.operands))
     return failure();
   return success();
 }
 

mlir/lib/Target/LLVMIR/ModuleTranslation.cpp

if (auto inlineAsmOp = dyn_cast<LLVM::InlineAsmOp>(opInst)) {
     // conversion.
     SmallVector<LLVM::LLVMType, 8> operandTypes;
     operandTypes.reserve(inlineAsmOp.operands().size());
     for (auto t : inlineAsmOp.operands().getTypes())
       operandTypes.push_back(t.cast<LLVM::LLVMType>());
 
     LLVM::LLVMType resultType;
     if (inlineAsmOp.getNumResults() == 0) {
-      resultType = LLVM::LLVMType::getVoidTy(mlirModule->getContext());
+      resultType = LLVM::LLVMVoidType::get(mlirModule->getContext());
     } else {
       assert(inlineAsmOp.getNumResults() == 1);
       resultType = inlineAsmOp.getResultTypes()[0].cast<LLVM::LLVMType>();
     }
-    auto ft = LLVM::LLVMType::getFunctionTy(resultType, operandTypes,
-                                            /*isVarArg=*/false);
+    auto ft = LLVM::LLVMFunctionType::get(resultType, operandTypes);
     llvm::InlineAsm *inlineAsmInst =
         inlineAsmOp.asm_dialect().hasValue()
             ? llvm::InlineAsm::get(
                   static_cast<llvm::FunctionType *>(convertType(ft)),
                   inlineAsmOp.asm_string(), inlineAsmOp.constraints(),
                   inlineAsmOp.has_side_effects(), inlineAsmOp.is_align_stack(),
                   convertAsmDialectToLLVM(*inlineAsmOp.asm_dialect()))
             : llvm::InlineAsm::get(

mlir/test/lib/Transforms/TestConvertCallOp.cpp

public:
   }
 
   void runOnOperation() override {
     ModuleOp m = getOperation();
 
     // Populate type conversions.
     LLVMTypeConverter type_converter(m.getContext());
     type_converter.addConversion([&](test::TestType type) {
-      return LLVM::LLVMType::getInt8PtrTy(m.getContext());
+      return LLVM::LLVMPointerType::get(
+          LLVM::LLVMIntegerType::get(m.getContext(), 8));
     });
 
     // Populate patterns.
     OwningRewritePatternList patterns;
     populateStdToLLVMConversionPatterns(type_converter, patterns);
     patterns.insert<TestTypeProducerOpConverter>(type_converter);
 
     // Set target.