[all-commits] [llvm/llvm-project] 09507b: [AArch64][SME] Disable NEON in streaming mode

[Cullen Rhodes via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 09507b53250dc266632c204558cb1c2b56e8ddea
      https://github.com/llvm/llvm-project/commit/09507b53250dc266632c204558cb1c2b56e8ddea
  Author: Cullen Rhodes <cullen.rhodes at arm.com>
  Date:   2021-08-16 (Mon, 16 Aug 2021)

  Changed paths:
    M llvm/lib/Target/AArch64/MCTargetDesc/AArch64MCTargetDesc.cpp
    A llvm/test/MC/AArch64/SME/streaming-sve-feature.s

  Log Message:
  -----------
  [AArch64][SME] Disable NEON in streaming mode

In streaming mode most of the NEON instruction set is illegal, disable
NEON when compiling with `+streaming-sve`, unless NEON is explictly
requested.

Subsequent patches will add support for the small subset of NEON
instructions that are legal in streaming mode.

Reviewed By: paulwalker-arm, david-arm

Differential Revision: https://reviews.llvm.org/D107902