1 //===- GPUToNVVMPass.h - Convert GPU kernel to NVVM dialect -----*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 #ifndef MLIR_CONVERSION_GPUTONVVM_GPUTONVVMPASS_H_
9 #define MLIR_CONVERSION_GPUTONVVM_GPUTONVVMPASS_H_
10 
11 #include "mlir/Conversion/LLVMCommon/LoweringOptions.h"
12 #include "mlir/Dialect/LLVMIR/LLVMTypes.h"
13 #include <memory>
14 
15 namespace mlir {
16 class LLVMTypeConverter;
17 class ConversionTarget;
18 class RewritePatternSet;
19 
20 template <typename OpT>
21 class OperationPass;
22 
23 namespace gpu {
24 class GPUModuleOp;
25 class MMAMatrixType;
26 } // namespace gpu
27 
28 LLVM::LLVMStructType convertMMAToLLVMType(gpu::MMAMatrixType type);
29 
30 /// Configure target to convert from the GPU dialect to NVVM.
31 void configureGpuToNVVMConversionLegality(ConversionTarget &target);
32 
33 /// Collect a set of patterns to convert from the GPU dialect to NVVM.
34 void populateGpuToNVVMConversionPatterns(LLVMTypeConverter &converter,
35                                          RewritePatternSet &patterns);
36 
37 /// Collect a set of patterns to convert WMMA ops from GPU dialect to NVVM.
38 void populateGpuWMMAToNVVMConversionPatterns(LLVMTypeConverter &converter,
39                                              RewritePatternSet &patterns);
40 
41 /// Creates a pass that lowers GPU dialect operations to NVVM counterparts. The
42 /// index bitwidth used for the lowering of the device side index computations
43 /// is configurable.
44 std::unique_ptr<OperationPass<gpu::GPUModuleOp>> createLowerGpuOpsToNVVMOpsPass(
45     unsigned indexBitwidth = kDeriveIndexBitwidthFromDataLayout);
46 
47 } // namespace mlir
48 
49 #endif // MLIR_CONVERSION_GPUTONVVM_GPUTONVVMPASS_H_
50