Putting Triton dialect in its own folder

lib/Dialect/CMakeLists.txt

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+add_subdirectory(Triton)

lib/Dialect/Triton/CMakeLists.txt

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+add_mlir_dialect_library(TritonIR
+  Dialect.cpp
+  Ops.cpp
+  Types.cpp
+
+  DEPENDS
+  TritonTableGen
+
+  LINK_LIBS PUBLIC
+  MLIRIR
+  MLIRArithmetic
+  MLIRSCF
+
+  # Since LLVM 15
+  # MLIRFunc
+  # else
+  MLIRStandard
+)

lib/Dialect/Triton/Dialect.cpp

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+#include "triton/Dialect/Triton/Dialect.h"
+#include "triton/Dialect/Triton/Types.h"
+
+#include "llvm/ADT/StringSwitch.h"
+#include "llvm/ADT/TypeSwitch.h"
+#include "llvm/Support/raw_ostream.h"
+
+#include "mlir/IR/DialectImplementation.h"
+
+
+#include "triton/Dialect/Triton/Dialect.cpp.inc"
+
+using namespace mlir;
+using namespace mlir::triton;
+
+void TritonDialect::initialize() {
+  registerTypes();
+
+  addOperations<
+#define GET_OP_LIST
+#include "triton/Dialect/Triton/Ops.cpp.inc"
+               >();
+
+  // We can also add interface here.
+}

lib/Dialect/Triton/Ops.cpp

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+#include "triton/Dialect/Triton/Dialect.h"
+#include "triton/Dialect/Triton/Types.h"
+
+#include "mlir/IR/Builders.h"
+#include "mlir/IR/BuiltinAttributes.h"
+#include "mlir/IR/BuiltinTypes.h"
+#include "mlir/IR/OperationSupport.h"
+
+namespace mlir {
+namespace triton {
+
+// Type inference
+static Type getI1SameShape(Type type) {
+  auto i1Type = IntegerType::get(type.getContext(), 1);
+  if (auto tensorType = type.dyn_cast<RankedTensorType>())
+    return RankedTensorType::get(tensorType.getShape(), i1Type);
+  return Type();
+}
+
+static Type getI32SameShape(Type type) {
+  auto i32Type = IntegerType::get(type.getContext(), 32);
+  if (auto tensorType = type.dyn_cast<RankedTensorType>())
+    return RankedTensorType::get(tensorType.getShape(), i32Type);
+  return Type();
+}
+
+static Type getPointerTypeFromTensor(Type type) {
+  if (auto tensorType = type.dyn_cast<RankedTensorType>()) {
+    Type elementType = tensorType.getElementType();
+    auto shape = tensorType.getShape();
+    PointerType ptrType = PointerType::get(elementType, 1);
+    return RankedTensorType::get(shape, ptrType);
+  }
+  return Type();
+}
+
+}
+}
+
+#define GET_OP_CLASSES
+#include "triton/Dialect/Triton/Ops.cpp.inc"
+
+// enum attribute definitions
+#include "triton/Dialect/Triton/OpsEnums.cpp.inc"
+
+namespace mlir {
+namespace triton {
+
+//-- StoreOp --
+// Default mask
+void StoreOp::build(::mlir::OpBuilder &builder, ::mlir::OperationState &state, ::mlir::Value ptr, ::mlir::Value value) {
+  TensorType ptrType = ptr.getType().dyn_cast<TensorType>();
+  auto shape = ptrType.getShape();
+  ::mlir::Value mask = builder.create<arith::ConstantOp>(
+    ptr.getLoc(),
+    RankedTensorType::get(shape, builder.getI1Type()),
+    DenseIntElementsAttr::get(
+      RankedTensorType::get(shape, builder.getI1Type()), true
+    )
+  );
+  state.addOperands(ptr);
+  state.addOperands(value);
+  state.addOperands(mask);
+}
+
+//-- LoadOp --
+void LoadOp::build(::mlir::OpBuilder &builder, ::mlir::OperationState &state, ::mlir::Value ptr,
+                   ::mlir::triton::CacheModifier cache, ::mlir::triton::EvictionPolicy evict, bool isVolatile) {
+  TensorType ptrType = ptr.getType().dyn_cast<TensorType>();
+  Type elementType = ptrType.getElementType().dyn_cast<PointerType>().getPointeeType();
+  auto shape = ptrType.getShape();
+  // mask
+  ::mlir::Value mask = builder.create<arith::ConstantOp>(
+    ptr.getLoc(),
+    RankedTensorType::get(shape, builder.getI1Type()),
+    DenseIntElementsAttr::get(
+      RankedTensorType::get(shape, builder.getI1Type()), true
+    )
+  );
+  // other
+  Type resultType = RankedTensorType::get(shape, elementType);
+  ::mlir::Value other = builder.create<arith::ConstantOp>(
+    ptr.getLoc(),
+    resultType,
+    DenseElementsAttr::get(
+      resultType, builder.getZeroAttr(elementType)
+    )
+  );
+  state.addOperands(ptr);
+  state.addOperands(mask);
+  state.addOperands(other);
+  state.addAttribute(cacheAttrName(state.name), ::mlir::triton::CacheModifierAttr::get(builder.getContext(), cache));
+  state.addAttribute(evictAttrName(state.name), ::mlir::triton::EvictionPolicyAttr::get(builder.getContext(), evict));
+  state.addAttribute(isVolatileAttrName(state.name), builder.getBoolAttr(isVolatile));
+  state.addTypes({resultType});
+}
+
+} // namespace triton
+} // namespace mlir

lib/Dialect/Triton/Types.cpp

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+#include "triton/Dialect/Triton/Dialect.h"
+#include "triton/Dialect/Triton/Types.h"
+#include "mlir/IR/DialectImplementation.h" // required by `Types.cpp.inc`
+#include "llvm/ADT/TypeSwitch.h" // required by `Types.cpp.inc`
+
+using namespace mlir;
+using namespace mlir::triton;
+
+#define GET_TYPEDEF_CLASSES
+#include "triton/Dialect/Triton/Types.cpp.inc"
+
+//===----------------------------------------------------------------------===//
+// Triton Dialect
+//===----------------------------------------------------------------------===//
+void TritonDialect::registerTypes() {
+  addTypes<
+#define GET_TYPEDEF_LIST
+#include "triton/Dialect/Triton/Types.cpp.inc"
+  >();
+}
+
+Type PointerType::parse(AsmParser &parser) {
+  if (parser.parseLess())
+    return Type();
+
+  Type pointeeType;
+  if (parser.parseType(pointeeType))
+    return Type();
+
+  if (parser.parseGreater())
+    return Type();
+
+  return PointerType::get(pointeeType, 0);
+}
+
+void PointerType::print(AsmPrinter &printer) const {
+  printer << "<" << getPointeeType() << ">";
+}