[PATCH] D80752: [AArch64]: BFloat MatMul Intrinsics&CodeGen

Luke Geeson via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu May 28 12:38:37 PDT 2020


LukeGeeson created this revision.
LukeGeeson added reviewers: SjoerdMeijer, t.p.northover, sdesmalen, labrinea.
Herald added subscribers: llvm-commits, cfe-commits, danielkiss, hiraditya, kristof.beyls.
Herald added projects: clang, LLVM.
LukeGeeson added a parent revision: D80716: [AArch64]: BFloat Load/Store Intrinsics&CodeGen.

This patch upstreams support for BFloat Matrix Multiplication Intrinsics
and Code Generation from __bf16 to AArch64. This includes IR intrinsics. Unittests are
provided as needed. AArch32 Intrinsics + CodeGen will come after this
patch.

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 Geeson
- Momchil Velikov
- Mikhail Maltsev
- Luke Cheeseman


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D80752

Files:
  clang/include/clang/Basic/arm_neon.td
  clang/lib/CodeGen/CGBuiltin.cpp
  clang/test/CodeGen/aarch64-bf16-dotprod-intrinsics.c
  llvm/include/llvm/IR/IntrinsicsAArch64.td
  llvm/lib/Target/AArch64/AArch64InstrFormats.td
  llvm/lib/Target/AArch64/AArch64InstrInfo.td
  llvm/test/CodeGen/AArch64/aarch64-bf16-dotprod-intrinsics.ll

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