[all-commits] [llvm/llvm-project] 9bbbfb: [AArch64][SME] Emit Zero instruction for NewZA fun...

[Matthew Devereau via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9bbbfbc7fdd70830dec8cfd73081f827c6dde73b
      https://github.com/llvm/llvm-project/commit/9bbbfbc7fdd70830dec8cfd73081f827c6dde73b
  Author: Matthew Devereau <matthew.devereau at arm.com>
  Date:   2023-09-15 (Fri, 15 Sep 2023)

  Changed paths:
    M llvm/lib/Target/AArch64/SMEABIPass.cpp
    M llvm/test/CodeGen/AArch64/sme-disable-gisel-fisel.ll
    M llvm/test/CodeGen/AArch64/sme-new-za-function.ll

  Log Message:
  -----------
  [AArch64][SME] Emit Zero instruction for NewZA functions

[The ACLE](https://github.com/ARM-software/acle/pull/268) Demands that
functions with the aarch64_pstate_za_new attribute set all bits of the
ZA register to zero upon entry.