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[mlir][mesh] Add lowering of process multi-index op #77490
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,26 @@ | ||
| //===- Transforms.h - Mesh Transforms ---------------------------*- C++ -*-===// | ||
| // | ||
| // 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 | ||
| // | ||
| //===----------------------------------------------------------------------===// | ||
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| #ifndef MLIR_DIALECT_MESH_TRANSFORMS_TRANSFORMS_H | ||
| #define MLIR_DIALECT_MESH_TRANSFORMS_TRANSFORMS_H | ||
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| namespace mlir { | ||
| class RewritePatternSet; | ||
| class SymbolTableCollection; | ||
| class DialectRegistry; | ||
| namespace mesh { | ||
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| void processMultiIndexOpLoweringPopulatePatterns( | ||
| RewritePatternSet &patterns, SymbolTableCollection &symbolTableCollection); | ||
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| void processMultiIndexOpLoweringRegisterDialects(DialectRegistry ®istry); | ||
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| } // namespace mesh | ||
| } // namespace mlir | ||
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| #endif // MLIR_DIALECT_MESH_TRANSFORMS_TRANSFORMS_H |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| //===- Transforms.cpp ---------------------------------------------- C++ --===// | ||
| // | ||
| // 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 | ||
| // | ||
| //===----------------------------------------------------------------------===// | ||
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| #include "mlir/Dialect/Mesh/Transforms/Transforms.h" | ||
| #include "mlir/Dialect/Affine/IR/AffineOps.h" | ||
| #include "mlir/Dialect/Mesh/IR/MeshOps.h" | ||
| #include "mlir/IR/BuiltinTypes.h" | ||
| #include "mlir/IR/DialectRegistry.h" | ||
| #include "mlir/IR/ImplicitLocOpBuilder.h" | ||
| #include "mlir/IR/PatternMatch.h" | ||
| #include "mlir/IR/Value.h" | ||
| #include "llvm/ADT/STLExtras.h" | ||
| #include "llvm/ADT/SmallVector.h" | ||
| #include <iterator> | ||
| #include <numeric> | ||
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| namespace mlir::mesh { | ||
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| namespace { | ||
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| /// Lower `mesh.process_multi_index` into expression using | ||
| /// `mesh.process_linear_index` and `mesh.cluster_shape`. | ||
| struct ProcessMultiIndexOpLowering : OpRewritePattern<ProcessMultiIndexOp> { | ||
| template <typename... OpRewritePatternArgs> | ||
| ProcessMultiIndexOpLowering(SymbolTableCollection &symbolTableCollection, | ||
| OpRewritePatternArgs &&...opRewritePatternArgs) | ||
| : OpRewritePattern( | ||
| std::forward<OpRewritePatternArgs...>(opRewritePatternArgs)...), | ||
| symbolTableCollection(symbolTableCollection) {} | ||
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| LogicalResult matchAndRewrite(ProcessMultiIndexOp op, | ||
| PatternRewriter &rewriter) const override { | ||
| ClusterOp mesh = | ||
| symbolTableCollection.lookupNearestSymbolFrom<mesh::ClusterOp>( | ||
| op.getOperation(), op.getMeshAttr()); | ||
| if (!mesh) { | ||
| return failure(); | ||
| } | ||
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| ImplicitLocOpBuilder builder(op->getLoc(), rewriter); | ||
| builder.setInsertionPointAfter(op.getOperation()); | ||
| Value linearIndex = builder.create<ProcessLinearIndexOp>(mesh); | ||
| ValueRange meshShape = builder.create<ClusterShapeOp>(mesh).getResults(); | ||
| SmallVector<Value> completeMultiIndex = | ||
| builder.create<affine::AffineDelinearizeIndexOp>(linearIndex, meshShape) | ||
| .getMultiIndex(); | ||
| SmallVector<Value> multiIndex; | ||
| ArrayRef<MeshAxis> opMeshAxes = op.getAxes(); | ||
| SmallVector<MeshAxis> opAxesIota; | ||
| if (opMeshAxes.empty()) { | ||
| opAxesIota.resize(mesh.getRank()); | ||
| std::iota(opAxesIota.begin(), opAxesIota.end(), 0); | ||
| opMeshAxes = opAxesIota; | ||
| } | ||
| llvm::transform(opMeshAxes, std::back_inserter(multiIndex), | ||
| [&completeMultiIndex](MeshAxis meshAxis) { | ||
| return completeMultiIndex[meshAxis]; | ||
| }); | ||
| rewriter.replaceAllUsesWith(op.getResults(), multiIndex); | ||
| return success(); | ||
| } | ||
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| private: | ||
| SymbolTableCollection &symbolTableCollection; | ||
| }; | ||
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| } // namespace | ||
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| void processMultiIndexOpLoweringPopulatePatterns( | ||
| RewritePatternSet &patterns, SymbolTableCollection &symbolTableCollection) { | ||
| patterns.add<ProcessMultiIndexOpLowering>(symbolTableCollection, | ||
| patterns.getContext()); | ||
| } | ||
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| void processMultiIndexOpLoweringRegisterDialects(DialectRegistry ®istry) { | ||
| registry.insert<affine::AffineDialect, mesh::MeshDialect>(); | ||
| } | ||
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| } // namespace mlir::mesh |
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ops/invalid check of mesh.process_linear_index seems missing?
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I added tests.