[all-commits] [llvm/llvm-project] 0a0960: [mlir][spirv] Add bfloat16 support (#141458)

[Darren Wihandi via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 0a0960dac69fc88a3c8bd5e2099f8d45b0292c78
      https://github.com/llvm/llvm-project/commit/0a0960dac69fc88a3c8bd5e2099f8d45b0292c78
  Author: Darren Wihandi <65404740+fairywreath at users.noreply.github.com>
  Date:   2025-06-13 (Fri, 13 Jun 2025)

  Changed paths:
    M mlir/include/mlir/Dialect/SPIRV/IR/SPIRVBase.td
    M mlir/include/mlir/Dialect/SPIRV/IR/SPIRVCastOps.td
    M mlir/lib/Dialect/SPIRV/IR/SPIRVDialect.cpp
    M mlir/lib/Dialect/SPIRV/IR/SPIRVTypes.cpp
    M mlir/lib/Target/SPIRV/Deserialization/Deserializer.cpp
    M mlir/lib/Target/SPIRV/Serialization/Serializer.cpp
    M mlir/test/Conversion/FuncToSPIRV/types-to-spirv.mlir
    M mlir/test/Dialect/SPIRV/IR/arithmetic-ops.mlir
    M mlir/test/Dialect/SPIRV/IR/atomic-ops.mlir
    M mlir/test/Dialect/SPIRV/IR/cast-ops.mlir
    M mlir/test/Dialect/SPIRV/IR/composite-ops.mlir
    M mlir/test/Dialect/SPIRV/IR/gl-ops.mlir
    M mlir/test/Dialect/SPIRV/IR/logical-ops.mlir
    M mlir/test/Dialect/SPIRV/IR/non-uniform-ops.mlir
    M mlir/test/Dialect/SPIRV/IR/types.mlir
    M mlir/test/Dialect/SPIRV/Transforms/vce-deduction.mlir
    M mlir/test/Target/SPIRV/cast-ops.mlir
    M mlir/test/Target/SPIRV/logical-ops.mlir

  Log Message:
  -----------
  [mlir][spirv] Add bfloat16 support (#141458)

Adds bf16 support to SPIRV by using the `SPV_KHR_bfloat16` extension.
Only a few operations are supported, including loading from and storing
to memory, conversion to/from other types, cooperative matrix operations
(including coop matrix arithmetic ops) and dot product support.

This PR adds the type definition and implements the basic cast
operations. Arithmetic/coop matrix ops will be added in a separate PR.



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