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Dec 6, 2023
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[mlir][ArmSME] Update docs #74527

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[mlir][sme] Update docs
banach-space Dec 5, 2023
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fixup! [mlir][sme] Update docs
banach-space Dec 6, 2023
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28 changes: 22 additions & 6 deletions mlir/docs/Dialects/ArmSME.md
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# 'ArmSME' Dialect

[TOC]
Basic dialect to target Arm SME.

This dialect defines custom and LLVM IR intrinsic operations that are used to
target Arm Scalable Matrix Extension. Through the available conversion and
ArmSME passes you can, for example, lower a
[linalg.matmul](https://mlir.llvm.org/docs/Dialects/Linalg/#linalgmatmul-linalgmatmulop)
opereation to Arm SME
[FMOPA](https://developer.arm.com/documentation/ddi0602/2023-03/SME-Instructions/FMOPA--widening---Half-precision-floating-point-sum-of-outer-products-and-accumulate-)
(floating-point outer product) operations. See one of the in-tree end-to-end
integration tests for reference:

* [Linalg/CPU/ArmSME/matmul.mlir](https://github.com/llvm/llvm-project/blob/main/mlir/test/Integration/Dialect/Linalg/CPU/ArmSME/matmul.mlir)
* [Vector/CPU/ArmSME/test-outerproduct-f64.mlir](https://github.com/llvm/llvm-project/blob/main/mlir/test/Integration/Dialect/Vector/CPU/ArmSME/test-outerproduct-f64.mlir)

Basic dialect to target Arm SME architectures This dialect contains the
definitions necessary to target Arm SME scalable matrix operations.
These tests are run "post-commit" by the
[clang-aarch64-sve-vla](https://lab.llvm.org/buildbot/#/builders/197) LLVM
BuildBot worker.

## References
* https://developer.arm.com/documentation/ddi0616
* https://developer.arm.com/documentation/ddi0602/2023-03/SME-Instructions
**References:**

* [The Scalable Matrix Extension (SME), for Armv9-A](https://developer.arm.com/documentation/ddi0616)
* [A64 -- SME Instructions (alphabetic order)](https://developer.arm.com/documentation/ddi0602/2023-03/SME-Instructions)

[TOC]

## Operations

Expand Down