llvm/mlir/lib/Conversion/SCFToGPU/SCFToGPUPass.cpp

//===- SCFToGPUPass.cpp - Convert a loop nest to a GPU kernel -----------===//
//
// 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
//
//===----------------------------------------------------------------------===//

#include "mlir/Conversion/SCFToGPU/SCFToGPUPass.h"

#include "mlir/Conversion/SCFToGPU/SCFToGPU.h"
#include "mlir/Dialect/Affine/IR/AffineOps.h"
#include "mlir/Dialect/Arith/IR/Arith.h"
#include "mlir/Dialect/Complex/IR/Complex.h"
#include "mlir/Dialect/GPU/IR/GPUDialect.h"
#include "mlir/Dialect/SCF/IR/SCF.h"
#include "mlir/Pass/Pass.h"
#include "mlir/Transforms/DialectConversion.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/Support/CommandLine.h"

namespace mlir {
#define GEN_PASS_DEF_CONVERTAFFINEFORTOGPU
#define GEN_PASS_DEF_CONVERTPARALLELLOOPTOGPU
#include "mlir/Conversion/Passes.h.inc"
} // namespace mlir

usingnamespacemlir;
usingnamespacemlir::scf;

namespace {
// A pass that traverses top-level loops in the function and converts them to
// GPU launch operations.  Nested launches are not allowed, so this does not
// walk the function recursively to avoid considering nested loops.
struct ForLoopMapper : public impl::ConvertAffineForToGPUBase<ForLoopMapper> { … };

struct ParallelLoopToGpuPass
    : public impl::ConvertParallelLoopToGpuBase<ParallelLoopToGpuPass> { … };

} // namespace

std::unique_ptr<InterfacePass<FunctionOpInterface>>
mlir::createAffineForToGPUPass(unsigned numBlockDims, unsigned numThreadDims) { … }
std::unique_ptr<InterfacePass<FunctionOpInterface>>
mlir::createAffineForToGPUPass() { … }

std::unique_ptr<Pass> mlir::createParallelLoopToGpuPass() { … }