[Mlir-commits] [mlir] [MLIR][VCIX] Support VCIX intrinsics in LLVMIR dialect (PR #75875)

[Diego Caballero]

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@@ -0,0 +1,89 @@
+//===- VCIXToLLVMIRTranslation.cpp - Translate VCIX to LLVM IR ----------===//
+//
+// Part of the LLVM Project, 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 VCIX dialect and
+// LLVM IR.
+//
+//===----------------------------------------------------------------------===//
+
+#include "mlir/Target/LLVMIR/Dialect/VCIX/VCIXToLLVMIRTranslation.h"
+#include "mlir/Dialect/LLVMIR/VCIXDialect.h"
+#include "mlir/IR/BuiltinAttributes.h"
+#include "mlir/IR/Operation.h"
+#include "mlir/Target/LLVMIR/ModuleTranslation.h"
+
+#include "llvm/IR/IRBuilder.h"
+#include "llvm/IR/IntrinsicsRISCV.h"
+#include "llvm/Support/raw_ostream.h"
+
+using namespace mlir;
+using namespace mlir::LLVM;
+using mlir::LLVM::detail::createIntrinsicCall;
+
+/// Infer XLen type from opcode's type. This is done to avoid passing target
+/// option around
+static llvm::Type *getXlenType(Attribute opcodeAttr,
+                               LLVM::ModuleTranslation &moduleTranslation) {
+  auto intAttr = opcodeAttr.cast<IntegerAttr>();
+  unsigned xlenWidth = intAttr.getType().cast<IntegerType>().getWidth();
+  return llvm::Type::getIntNTy(moduleTranslation.getLLVMContext(), xlenWidth);
+}
+
+/// Return VL for VCIX intrinsic. If vl was previously set, return it,
+/// otherwise construct a constant using fixed vector type
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dcaballe wrote:

nit: please review comments in general and add period at the end per coding guidelines. Thanks!

https://github.com/llvm/llvm-project/pull/75875