[Mlir-commits] [mlir] [MLIR][GPU][XeVM] Add XeVM target and XeVM dialect integration tests. (PR #148286)

[Adam Siemieniuk]

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@@ -0,0 +1,117 @@
+//===-- XeVMToLLVMIRTranslation.cpp - Translate XeVM to LLVM IR -*- C++ -*-===//
+//
+// This file is licensed under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements a translation between the MLIR XeVM dialect and
+// LLVM IR.
+//
+//===----------------------------------------------------------------------===//
+
+#include "mlir/Target/LLVMIR/Dialect/XeVM/XeVMToLLVMIRTranslation.h"
+#include "mlir/Dialect/LLVMIR/XeVMDialect.h"
+#include "mlir/IR/BuiltinAttributes.h"
+#include "mlir/IR/Operation.h"
+#include "mlir/Target/LLVMIR/ModuleTranslation.h"
+
+#include "llvm/ADT/TypeSwitch.h"
+#include "llvm/IR/Constants.h"
+#include "llvm/IR/LLVMContext.h"
+#include "llvm/IR/Metadata.h"
+
+#include "llvm/IR/ConstantRange.h"
+#include "llvm/IR/IRBuilder.h"
+#include "llvm/Support/raw_ostream.h"
+
+using namespace mlir;
+using namespace mlir::LLVM;
+
+namespace {
+/// Implementation of the dialect interface that converts operations belonging
+/// to the XeVM dialect to LLVM IR.
+class XeVMDialectLLVMIRTranslationInterface
+    : public LLVMTranslationDialectInterface {
+public:
+  using LLVMTranslationDialectInterface::LLVMTranslationDialectInterface;
+
+  /// Translates the given operation to LLVM IR using the provided IR builder
+  /// and saving the state in `moduleTranslation`.
+  LogicalResult
+  convertOperation(Operation *op, llvm::IRBuilderBase &builder,
+                   LLVM::ModuleTranslation &moduleTranslation) const final {
+    /* TODO */
+    return failure();
+  }
+
+  /// Attaches module-level metadata for functions marked as kernels.
+  LogicalResult
+  amendOperation(Operation *op, ArrayRef<llvm::Instruction *> instructions,
+                 NamedAttribute attribute,
+                 LLVM::ModuleTranslation &moduleTranslation) const final {
+    StringRef attrName = attribute.getName().getValue();
+    if (attrName == mlir::xevm::XeVMDialect::getCacheControlsAttrName()) {
+      auto cacheControlsArray = dyn_cast<ArrayAttr>(attribute.getValue());
+      if (cacheControlsArray.size() != 2) {
+        return op->emitOpError(
+            "Expected both L1 and L3 cache control attributes!");
+      }
+      if (instructions.size() != 1) {
+        return op->emitOpError("Expecting a single instruction");
+      }
+      return handleDecorationCacheControl(instructions.front(),
+                                          cacheControlsArray.getValue());
+    }
+    auto func = dyn_cast<LLVM::LLVMFuncOp>(op);
+    if (!func)
+      return failure();
+
+    return success();
+  }
+
+private:
+  template <typename IntTy>
----------------
adam-smnk wrote:

nit: does it need templating at all?

https://github.com/llvm/llvm-project/pull/148286