[all-commits] [llvm/llvm-project] a6fcf5: [clang][BFloat] add NEON emitter for bfloat

[Ties Stuij via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: a6fcf5ca033a83b815f760664e0cff91c2c13dcd
      https://github.com/llvm/llvm-project/commit/a6fcf5ca033a83b815f760664e0cff91c2c13dcd
  Author: Ties Stuij <ties.stuij at arm.com>
  Date:   2020-06-05 (Fri, 05 Jun 2020)

  Changed paths:
    A clang/include/clang/Basic/arm_bf16.td
    M clang/include/clang/Basic/arm_neon_incl.td
    M clang/lib/Basic/Targets/AArch64.cpp
    M clang/lib/Basic/Targets/ARM.cpp
    M clang/lib/Headers/CMakeLists.txt
    M clang/test/CodeGen/arm-bf16-params-returns.c
    M clang/test/Preprocessor/aarch64-target-features.c
    M clang/test/Preprocessor/arm-target-features.c
    M clang/utils/TableGen/NeonEmitter.cpp
    M clang/utils/TableGen/TableGen.cpp
    M clang/utils/TableGen/TableGenBackends.h

  Log Message:
  -----------
  [clang][BFloat] add NEON emitter for bfloat

Summary:
This patch adds the bfloat16_t struct typedefs (e.g. bfloat16x8x2_t) to
arm_neon.h

This patch is part of a series implementing the Bfloat16 extension of the
Armv8.6-a architecture, as detailed here:

https://community.arm.com/developer/ip-products/processors/b/processors-ip-blog/posts/arm-architecture-developments-armv8-6-a

The bfloat type, and its properties are specified in the Arm Architecture
Reference Manual:

https://developer.arm.com/docs/ddi0487/latest/arm-architecture-reference-manual-armv8-for-armv8-a-architecture-profile

The following people contributed to this patch:
- Luke Cheeseman
- Simon Tatham
- Ties Stuij

Reviewers: t.p.northover, fpetrogalli, sdesmalen, az, LukeGeeson

Reviewed By: fpetrogalli

Subscribers: SjoerdMeijer, LukeGeeson, pbarrio, mgorny, kristof.beyls, ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D79708