| 1 | //===- TestLinalgDropUnitDims.cpp - Test Linalg drop unit dims -----------===// |
|---|---|
| 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 | // |
| 9 | // This file implements a pass for testing the transformation to drop unit |
| 10 | // extent dimensions from `linalg.generic` operations. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
| 14 | #include "mlir/Dialect/Func/IR/FuncOps.h" |
| 15 | #include "mlir/Dialect/Linalg/IR/Linalg.h" |
| 16 | #include "mlir/Dialect/Linalg/Transforms/Transforms.h" |
| 17 | #include "mlir/Pass/Pass.h" |
| 18 | #include "mlir/Transforms/GreedyPatternRewriteDriver.h" |
| 19 | |
| 20 | using namespace mlir; |
| 21 | |
| 22 | namespace { |
| 23 | |
| 24 | LogicalResult dropOutermostUnitDims(RewriterBase &rewriter, |
| 25 | linalg::GenericOp genericOp) { |
| 26 | linalg::ControlDropUnitDims options; |
| 27 | options.controlFn = [](Operation *op) { return SmallVector<unsigned>{0}; }; |
| 28 | FailureOr<linalg::DropUnitDimsResult> result = |
| 29 | linalg::dropUnitDims(rewriter, genericOp, options); |
| 30 | if (failed(result)) { |
| 31 | return failure(); |
| 32 | } |
| 33 | rewriter.replaceOp(genericOp, result->replacements); |
| 34 | return success(); |
| 35 | } |
| 36 | |
| 37 | struct TestLinalgDropUnitDims |
| 38 | : public PassWrapper<TestLinalgDropUnitDims, OperationPass<func::FuncOp>> { |
| 39 | |
| 40 | MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(TestLinalgDropUnitDims) |
| 41 | |
| 42 | TestLinalgDropUnitDims() = default; |
| 43 | TestLinalgDropUnitDims(const TestLinalgDropUnitDims &pass) = default; |
| 44 | |
| 45 | void getDependentDialects(DialectRegistry ®istry) const override { |
| 46 | registry.insert<linalg::LinalgDialect>(); |
| 47 | } |
| 48 | |
| 49 | StringRef getArgument() const final { return "test-linalg-drop-unit-dims"; } |
| 50 | |
| 51 | StringRef getDescriptions() const { |
| 52 | return "Test transformation to drop unit-extent dims from Linalg " |
| 53 | "operations"; |
| 54 | } |
| 55 | |
| 56 | void runOnOperation() override { |
| 57 | MLIRContext *context = &this->getContext(); |
| 58 | func::FuncOp funcOp = this->getOperation(); |
| 59 | IRRewriter rewriter(context); |
| 60 | SmallVector<linalg::GenericOp> genericOps; |
| 61 | funcOp.walk( |
| 62 | [&](linalg::GenericOp genericOp) { genericOps.push_back(genericOp); }); |
| 63 | |
| 64 | for (auto genericOp : genericOps) { |
| 65 | rewriter.setInsertionPoint(genericOp); |
| 66 | (void)dropOutermostUnitDims(rewriter, genericOp); |
| 67 | } |
| 68 | } |
| 69 | }; |
| 70 | } // namespace |
| 71 | |
| 72 | namespace mlir { |
| 73 | namespace test { |
| 74 | void registerTestLinalgDropUnitDims() { |
| 75 | PassRegistration<TestLinalgDropUnitDims>(); |
| 76 | } |
| 77 | } // namespace test |
| 78 | } // namespace mlir |
| 79 |