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[Codegen][GPU] Add pass to unroll to native mma widths (iree-org#18101)
Left as TODO is to extend this pass to also unroll consumers/producers. To eventually connect everything we should add a pattern that unrolls iter args of `scf.for` loops. Note that the unrolling pattern is already tested in its own test, so simply updating the pipeline test is fine here. Once extending this pass to do more unrolling a test can be added.
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compiler/src/iree/compiler/Codegen/Dialect/GPU/Transforms/UnrollToIntrinsics.cpp
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|---|---|---|
| @@ -0,0 +1,58 @@ | ||
| // Copyright 2024 The IREE Authors | ||
| // | ||
| // Licensed 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 "iree/compiler/Codegen/Dialect/Codegen/IR/IREECodegenAttrs.h" | ||
| #include "iree/compiler/Codegen/Dialect/GPU/IR/IREEGPUAttrs.h" | ||
| #include "iree/compiler/Codegen/Dialect/GPU/IR/IREEGPUDialect.h" | ||
| #include "iree/compiler/Codegen/Dialect/GPU/IR/IREEGPUInterfaces.h" | ||
| #include "iree/compiler/Codegen/Dialect/GPU/Transforms/Passes.h" | ||
| #include "iree/compiler/Codegen/Dialect/GPU/Transforms/Transforms.h" | ||
| #include "mlir/Dialect/Linalg/IR/Linalg.h" | ||
| #include "mlir/Dialect/Linalg/IR/LinalgInterfaces.h" | ||
| #include "mlir/Dialect/Linalg/Transforms/Transforms.h" | ||
| #include "mlir/Dialect/Tensor/IR/Tensor.h" | ||
| #include "mlir/IR/OpDefinition.h" | ||
| #include "mlir/IR/PatternMatch.h" | ||
| #include "mlir/Interfaces/FunctionInterfaces.h" | ||
| #include "mlir/Transforms/GreedyPatternRewriteDriver.h" | ||
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| namespace mlir::iree_compiler::IREE::GPU { | ||
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| #define GEN_PASS_DEF_UNROLLTOINTRINSICSPASS | ||
| #include "iree/compiler/Codegen/Dialect/GPU/Transforms/Passes.h.inc" | ||
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| namespace { | ||
| struct UnrollToIntrinsicsPass final | ||
| : impl::UnrollToIntrinsicsPassBase<UnrollToIntrinsicsPass> { | ||
| void runOnOperation() override; | ||
| }; | ||
| } // namespace | ||
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| void UnrollToIntrinsicsPass::runOnOperation() { | ||
| MLIRContext *context = &getContext(); | ||
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| { | ||
| RewritePatternSet patterns(context); | ||
| GPU::populateIREEGPUVectorUnrollPatterns(patterns); | ||
| if (failed(applyPatternsAndFoldGreedily(getOperation(), | ||
| std::move(patterns)))) { | ||
| return signalPassFailure(); | ||
| } | ||
| } | ||
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| // Post unrolling unit dim folding patterns in preparation for later | ||
| // lowerings. | ||
| { | ||
| RewritePatternSet patterns(context); | ||
| GPU::populateIREEGPUDropUnitDimsPatterns(patterns); | ||
| if (failed(applyPatternsAndFoldGreedily(getOperation(), | ||
| std::move(patterns)))) { | ||
| return signalPassFailure(); | ||
| } | ||
| } | ||
| } | ||
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| } // namespace mlir::iree_compiler::IREE::GPU |
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