[all-commits] [llvm/llvm-project] 179ba1: [AArch64][FMV] Support feature MOPS in Function Mu...

[Alexandros Lamprineas via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 179ba129f50aefe6e670800aec7091d958aa6f90
      https://github.com/llvm/llvm-project/commit/179ba129f50aefe6e670800aec7091d958aa6f90
  Author: Alexandros Lamprineas <alexandros.lamprineas at arm.com>
  Date:   2024-01-23 (Tue, 23 Jan 2024)

  Changed paths:
    M clang/test/CodeGen/attr-target-version.c
    M clang/test/Sema/attr-target-clones-aarch64.c
    M clang/test/SemaCXX/attr-target-version.cpp
    M compiler-rt/lib/builtins/cpu_model/aarch64.c
    M compiler-rt/lib/builtins/cpu_model/aarch64/fmv/mrs.inc
    M compiler-rt/lib/builtins/cpu_model/aarch64/hwcap.inc
    M llvm/include/llvm/TargetParser/AArch64TargetParser.h

  Log Message:
  -----------
  [AArch64][FMV] Support feature MOPS in Function Multi Versioning. (#78788)

The patch adds support for FEAT_MOPS (Memory Copy and Memory Set
instructions) in Function Multi Versioning. The bits [19:16] of the
system register ID_AA64ISAR2_EL1 indicate whether FEAT_MOPS is
implemented in AArch64 state. This information is accessible via ELF
hwcaps.