[PATCH] D71930: [MLIR][spirv] Add basic definitions for supporting versions

[Lei Zhang via Phabricator via llvm-commits]

antiagainst created this revision.
antiagainst added reviewers: mravishankar, denis13.
Herald added subscribers: llvm-commits, shauheen, burmako, jpienaar, rriddle, mehdi_amini, jfb, mgorny.
Herald added a project: LLVM.

SPIR-V has a few mechanisms to control op availability: version,
extension, and capabilities. These mechanisms are considered as
different availability classes.

This commit introduces basic definitions for modelling SPIR-V
availability classes. Specifically, an `Availability` class is
added to SPIRVBase.td, along with two subclasses: MinVersion
and MaxVersion for versioning. SPV_Op is extended to take a
list of `Availability`. Each `Availability` instance carries
information for generating op interfaces for the corresponding
availability class and also the concrete availability
requirements.

With the availability spec on ops, we can now auto-generate the
op interfaces of all SPIR-V availability classes and also
synthesize the op's implementations of these interfaces. The
interface generation is done via new TableGen backends
-gen-avail-interface-{decls|defs}. The op's implementation is
done via -gen-spirv-avail-impls.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D71930

Files:
  mlir/include/mlir/Dialect/SPIRV/CMakeLists.txt
  mlir/include/mlir/Dialect/SPIRV/SPIRVAtomicOps.td
  mlir/include/mlir/Dialect/SPIRV/SPIRVBase.td
  mlir/include/mlir/Dialect/SPIRV/SPIRVNonUniformOps.td
  mlir/include/mlir/Dialect/SPIRV/SPIRVOps.h
  mlir/lib/Dialect/SPIRV/CMakeLists.txt
  mlir/lib/Dialect/SPIRV/SPIRVOps.cpp
  mlir/test/CMakeLists.txt
  mlir/test/Dialect/CMakeLists.txt
  mlir/test/Dialect/SPIRV/CMakeLists.txt
  mlir/test/Dialect/SPIRV/TestAvailability.cpp
  mlir/test/Dialect/SPIRV/availability.mlir
  mlir/tools/mlir-opt/CMakeLists.txt
  mlir/tools/mlir-tblgen/SPIRVUtilsGen.cpp

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