abc362a107
Suggested by @lattner in https://discourse.llvm.org/t/rfc-define-precise-arith-semantics/65507/22. Tested with: `ninja check-mlir check-mlir-integration check-mlir-mlir-spirv-cpu-runner check-mlir-mlir-vulkan-runner check-mlir-examples` and `bazel build --config=generic_clang @llvm-project//mlir:all`. Reviewed By: lattner, Mogball, rriddle, jpienaar, mehdi_amini Differential Revision: https://reviews.llvm.org/D134762
43 lines
1.6 KiB
C++
43 lines
1.6 KiB
C++
//===- SwapExtractSliceWithProducerPatterns.cpp ---------------------------===//
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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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// Swap a `tensor.extract_slice` with the producer of the source if the producer
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// implements the `TilingInterface`. When used in conjunction with tiling this
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// effectively tiles + fuses the producer with its consumer.
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/Dialect/Arith/IR/Arith.h"
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#include "mlir/Dialect/Tensor/IR/Tensor.h"
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#include "mlir/Dialect/Tensor/Transforms/Transforms.h"
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#include "mlir/Dialect/Utils/StaticValueUtils.h"
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#include "mlir/Interfaces/TilingInterface.h"
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using namespace mlir;
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FailureOr<Value> tensor::replaceExtractSliceWithTiledProducer(
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OpBuilder &builder, tensor::ExtractSliceOp sliceOp, OpResult producer) {
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auto producerOp = dyn_cast<TilingInterface>(producer.getOwner());
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if (!producerOp)
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return failure();
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// `TilingInterface` currently only supports strides being 1.
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if (llvm::any_of(sliceOp.getMixedStrides(), [](OpFoldResult ofr) {
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return !isConstantIntValue(ofr, 1);
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}))
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return failure();
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FailureOr<Value> tiledResult = producerOp.generateResultTileValue(
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builder, producer.getResultNumber(), sliceOp.getMixedOffsets(),
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sliceOp.getMixedSizes());
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if (failed(tiledResult))
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return failure();
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return tiledResult.value();
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}
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