119 lines
4.8 KiB
C++
119 lines
4.8 KiB
C++
//===- TosaToLinalgPass.cpp - Lowering Tosa to Linalg Dialect -------------===//
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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 transformation pass legalizes Tosa operations to the Linalg dialect.
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/Conversion/TosaToLinalg/TosaToLinalg.h"
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#include "mlir/Dialect/Arith/IR/Arith.h"
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#include "mlir/Dialect/Func/IR/FuncOps.h"
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#include "mlir/Dialect/Linalg/IR/Linalg.h"
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#include "mlir/Dialect/Math/IR/Math.h"
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#include "mlir/Dialect/SCF/IR/SCF.h"
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#include "mlir/Dialect/Tensor/IR/Tensor.h"
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#include "mlir/Dialect/Tosa/IR/TosaOps.h"
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#include "mlir/Dialect/Tosa/Transforms/Passes.h"
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#include "mlir/Dialect/Tosa/Utils/QuantUtils.h"
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#include "mlir/IR/PatternMatch.h"
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#include "mlir/Pass/PassManager.h"
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#include "mlir/Transforms/DialectConversion.h"
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#include "mlir/Transforms/GreedyPatternRewriteDriver.h"
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#include "mlir/Transforms/Passes.h"
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namespace mlir {
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#define GEN_PASS_DEF_TOSATOLINALG
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#include "mlir/Conversion/Passes.h.inc"
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} // namespace mlir
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using namespace mlir;
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namespace {
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struct TosaToLinalg : public impl::TosaToLinalgBase<TosaToLinalg> {
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public:
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void getDependentDialects(DialectRegistry ®istry) const override {
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registry
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.insert<arith::ArithDialect, linalg::LinalgDialect, math::MathDialect,
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tensor::TensorDialect, scf::SCFDialect>();
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}
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void runOnOperation() override {
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RewritePatternSet patterns(&getContext());
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ConversionTarget target(getContext());
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target.addLegalDialect<linalg::LinalgDialect, tensor::TensorDialect,
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scf::SCFDialect>();
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target.addIllegalDialect<tosa::TosaDialect>();
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// Not every TOSA op can be legalized to linalg.
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target.addLegalOp<tosa::ApplyScaleOp>();
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target.addLegalOp<tosa::IfOp>();
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target.addLegalOp<tosa::ConstOp>();
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target.addLegalOp<tosa::WhileOp>();
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target.addLegalOp<tosa::ConcatOp>();
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target.addLegalOp<tosa::SliceOp>();
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target.addLegalOp<tosa::ReshapeOp>();
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target.addLegalOp<tosa::PadOp>();
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target.markUnknownOpDynamicallyLegal([](Operation *) { return true; });
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FunctionOpInterface func = getOperation();
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mlir::tosa::populateTosaToLinalgConversionPatterns(&patterns);
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if (failed(applyFullConversion(func, target, std::move(patterns))))
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signalPassFailure();
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}
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};
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} // namespace
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std::unique_ptr<Pass> mlir::tosa::createTosaToLinalg() {
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return std::make_unique<TosaToLinalg>();
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}
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void mlir::tosa::addTosaToLinalgPasses(
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OpPassManager &pm, const TosaToLinalgOptions &options,
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const TosaToLinalgNamedOptions &tosaToLinalgNamedOptions,
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tosa::TosaValidationOptions const &validationOptions) {
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// Optional decompositions are designed to benefit linalg.
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if (!options.disableTosaDecompositions)
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pm.addNestedPass<func::FuncOp>(tosa::createTosaOptionalDecompositions());
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pm.addNestedPass<func::FuncOp>(createCanonicalizerPass());
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pm.addNestedPass<func::FuncOp>(tosa::createTosaInferShapesPass());
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pm.addNestedPass<func::FuncOp>(tosa::createTosaMakeBroadcastablePass());
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pm.addNestedPass<func::FuncOp>(
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tosa::createTosaToLinalgNamed(tosaToLinalgNamedOptions));
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pm.addNestedPass<func::FuncOp>(createCanonicalizerPass());
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// TODO: Remove pass that operates on const tensor and enable optionality
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pm.addNestedPass<func::FuncOp>(tosa::createTosaLayerwiseConstantFoldPass(
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{options.aggressiveReduceConstant}));
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pm.addNestedPass<func::FuncOp>(tosa::createTosaMakeBroadcastablePass());
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pm.addPass(tosa::createTosaValidation(validationOptions));
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pm.addNestedPass<func::FuncOp>(tosa::createTosaToLinalg());
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}
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//===----------------------------------------------------------------------===//
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// Pipeline registration.
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//===----------------------------------------------------------------------===//
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void mlir::tosa::registerTosaToLinalgPipelines() {
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PassPipelineRegistration<>(
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"tosa-to-linalg-pipeline",
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"The default pipeline for converting TOSA operators to the equivalent "
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"operations using the tensor operations in LinAlg as well as LinAlg "
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"named operations.",
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[](OpPassManager &pm) {
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TosaToLinalgOptions tosaToLinalgOptions;
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TosaToLinalgNamedOptions tosaToLinalgNamedOptions;
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tosa::addTosaToLinalgPasses(pm, tosaToLinalgOptions,
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tosaToLinalgNamedOptions,
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/* validationOptions = */
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{tosa::TosaProfileEnum::BaseInference,
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/* StrictOperationSpecAlignment = */ true,
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tosa::TosaLevelEnum::EightK});
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});
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}
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