a70aa7bb0d
This has been a major TODO for a very long time, and is necessary for establishing a proper dialect-free dependency layering for the Transforms library. Code was moved to effectively two main locations: * Affine/ There was quite a bit of affine dialect related code in Transforms/ do to historical reasons (of a time way into MLIR's past). The following headers were moved to: Transforms/LoopFusionUtils.h -> Dialect/Affine/LoopFusionUtils.h Transforms/LoopUtils.h -> Dialect/Affine/LoopUtils.h Transforms/Utils.h -> Dialect/Affine/Utils.h The following transforms were also moved: AffineLoopFusion, AffinePipelineDataTransfer, LoopCoalescing * SCF/ Only one SCF pass was in Transforms/ (likely accidentally placed here): ParallelLoopCollapsing The SCF specific utilities in LoopUtils have been moved to SCF/Utils.h * Misc: mlir::moveLoopInvariantCode was also moved to LoopLikeInterface.h given that it is a simple utility defined in terms of LoopLikeOpInterface. Differential Revision: https://reviews.llvm.org/D117848
65 lines
2.1 KiB
C++
65 lines
2.1 KiB
C++
//===- TestLoopParametricTiling.cpp --- Parametric loop tiling pass -------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements a pass to parametrically tile nests of standard loops.
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/Dialect/SCF/SCF.h"
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#include "mlir/Dialect/SCF/Utils.h"
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#include "mlir/IR/Builders.h"
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#include "mlir/Pass/Pass.h"
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using namespace mlir;
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namespace {
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// Extracts fixed-range loops for top-level loop nests with ranges defined in
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// the pass constructor. Assumes loops are permutable.
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class SimpleParametricLoopTilingPass
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: public PassWrapper<SimpleParametricLoopTilingPass,
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OperationPass<FuncOp>> {
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public:
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StringRef getArgument() const final {
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return "test-extract-fixed-outer-loops";
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}
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StringRef getDescription() const final {
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return "test application of parametric tiling to the outer loops so that "
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"the ranges of outer loops become static";
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}
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SimpleParametricLoopTilingPass() = default;
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SimpleParametricLoopTilingPass(const SimpleParametricLoopTilingPass &) {}
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explicit SimpleParametricLoopTilingPass(ArrayRef<int64_t> outerLoopSizes) {
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sizes = outerLoopSizes;
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}
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void runOnOperation() override {
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FuncOp func = getOperation();
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func.walk([this](scf::ForOp op) {
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// Ignore nested loops.
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if (op->getParentRegion()->getParentOfType<scf::ForOp>())
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return;
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extractFixedOuterLoops(op, sizes);
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});
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}
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ListOption<int64_t> sizes{
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*this, "test-outer-loop-sizes", llvm::cl::MiscFlags::CommaSeparated,
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llvm::cl::desc(
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"fixed number of iterations that the outer loops should have")};
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};
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} // namespace
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namespace mlir {
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namespace test {
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void registerSimpleParametricTilingPass() {
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PassRegistration<SimpleParametricLoopTilingPass>();
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}
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} // namespace test
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} // namespace mlir
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