cb6ff746e0
This patch adds a the `LowerVectorToArmNeonPattern` patterns to the ArmNeon. This pattern inspects `vector.contract` ops that can be 1-1 mapped to an `arm.neon.smmla` intrinsic. The contract ops must be separated into tiles who's inputs must fit that of a single smmla op (`2x8xi32` inputs and `2x2xi32` output). The `vector.contract` inputs must be sign extended from narrow types (<=i8) to be converted. If all conditions are met, an smmla op is inserted with additional `vector.shape_casts` to handle linearizing the input and output dimension.
62 lines
2.0 KiB
C++
62 lines
2.0 KiB
C++
//===- TestLowerToArmNeon.cpp - Test lowering to ArmNeon as a sink pass -===//
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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 file implements a pass for testing the lowering to ArmNeon as a
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// generally usable sink pass.
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/Dialect/ArmNeon/ArmNeonDialect.h"
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#include "mlir/Dialect/ArmNeon/Transforms.h"
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#include "mlir/Dialect/Func/IR/FuncOps.h"
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#include "mlir/IR/PatternMatch.h"
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#include "mlir/Pass/Pass.h"
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#include "mlir/Pass/PassManager.h"
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#include "mlir/Support/LogicalResult.h"
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#include "mlir/Transforms/GreedyPatternRewriteDriver.h"
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#define PASS_NAME "test-lower-to-arm-neon"
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using namespace mlir;
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using namespace mlir::arm_neon;
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namespace {
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struct TestLowerToArmNeon
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: public PassWrapper<TestLowerToArmNeon, OperationPass<func::FuncOp>> {
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MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(TestLowerToArmNeon)
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StringRef getArgument() const final { return PASS_NAME; }
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StringRef getDescription() const final { return "Tests lower to arm Neon."; }
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TestLowerToArmNeon() = default;
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TestLowerToArmNeon(const TestLowerToArmNeon &pass) = default;
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void getDependentDialects(DialectRegistry ®istry) const override {
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registry.insert<arm_neon::ArmNeonDialect>();
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}
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void runOnOperation() override;
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};
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} // namespace
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void TestLowerToArmNeon::runOnOperation() {
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MLIRContext *context = &getContext();
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RewritePatternSet patterns(context);
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populateLowerContractionToSMMLAPatternPatterns(patterns);
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if (failed(applyPatternsAndFoldGreedily(getOperation(), std::move(patterns))))
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return signalPassFailure();
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}
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namespace mlir {
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namespace test {
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void registerTestLowerToArmNeon() { PassRegistration<TestLowerToArmNeon>(); }
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} // namespace test
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} // namespace mlir
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