[all-commits] [llvm/llvm-project] 9a5ae3: [mlir][tosa] Add support for matmul_t_block_scaled...

[Luke Hutton via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9a5ae34eb6e90c51e2231ceb1a8cf933341f3222
      https://github.com/llvm/llvm-project/commit/9a5ae34eb6e90c51e2231ceb1a8cf933341f3222
  Author: Luke Hutton <luke.hutton at arm.com>
  Date:   2025-10-23 (Thu, 23 Oct 2025)

  Changed paths:
    M mlir/include/mlir/Dialect/Tosa/IR/TargetEnv.h
    M mlir/include/mlir/Dialect/Tosa/IR/TosaComplianceData.h.inc
    M mlir/include/mlir/Dialect/Tosa/IR/TosaOpBase.td
    M mlir/include/mlir/Dialect/Tosa/IR/TosaOps.td
    M mlir/include/mlir/Dialect/Tosa/IR/TosaProfileCompliance.h
    M mlir/include/mlir/Dialect/Tosa/IR/TosaTypesBase.td
    M mlir/lib/Dialect/Tosa/IR/TargetEnv.cpp
    M mlir/lib/Dialect/Tosa/IR/TosaOps.cpp
    M mlir/lib/Dialect/Tosa/Transforms/TosaProfileCompliance.cpp
    M mlir/lib/Dialect/Tosa/Transforms/TosaValidation.cpp
    M mlir/test/Dialect/Tosa/invalid_extension.mlir
    M mlir/test/Dialect/Tosa/level_check.mlir
    M mlir/test/Dialect/Tosa/ops.mlir
    M mlir/test/Dialect/Tosa/profile_pro_fp_unsupported.mlir
    M mlir/test/Dialect/Tosa/tosa-infer-shapes.mlir
    M mlir/test/Dialect/Tosa/tosa-validation-version-1p1-valid.mlir
    M mlir/test/Dialect/Tosa/verifier.mlir

  Log Message:
  -----------
  [mlir][tosa] Add support for matmul_t_block_scaled (#163433)

This commit adds support for the MATMUL_T_BLOCK_SCALED operation from
the EXT_MXFP extension. This includes:
- Operation definition in TosaOps.td
- Micro-scaling supported types definition
- Shape inference and verifiers
- Validation pass checks to ensure usage is only valid when the target
environment includes ext-mxfp and at least v1.1.draft of the
specification.

As part of this commit, a notion of EXT_MXFP is also added. The
extension can be specified as part of the target environment and can
only be used if the specification version is at least 1.1.

Note: currently it excludes support for mxint8. This will be added in a
later commit.

Note: this commit adds support as defined in the spec in
https://github.com/arm/tosa-specification/commit/063846a75b9687ab01e58cb3538472bffb3a03b0.
EXT_MXFP extension is considered experimental and subject to breaking
change.

Co-authored-by: Tat Wai Chong <tatwai.chong at arm.com>



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