[all-commits] [llvm/llvm-project] e8b7d8: [FMV][AArch64] Remove features which expose non ex...

[Alexandros Lamprineas via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e8b7d8bfb5692d73df3d8e728925f62fb3bd9ec5
      https://github.com/llvm/llvm-project/commit/e8b7d8bfb5692d73df3d8e728925f62fb3bd9ec5
  Author: Alexandros Lamprineas <alexandros.lamprineas at arm.com>
  Date:   2024-11-07 (Thu, 07 Nov 2024)

  Changed paths:
    M clang/test/CodeGen/aarch64-cpu-supports-target.c
    M clang/test/CodeGen/aarch64-fmv-dependencies.c
    M clang/test/CodeGen/attr-target-version.c
    M clang/test/CodeGenCXX/attr-target-version.cpp
    M clang/test/Sema/aarch64-cpu-supports.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/AArch64CPUFeatures.inc
    M compiler-rt/lib/builtins/cpu_model/aarch64/fmv/mrs.inc
    M llvm/include/llvm/TargetParser/AArch64CPUFeatures.inc
    M llvm/lib/Target/AArch64/AArch64FMV.td

  Log Message:
  -----------
  [FMV][AArch64] Remove features which expose non exploitable runtime behavior. (#114387)

Features ebf16, memtag3, and rpres allow existing instructions to behave
differently depending on the value of certain control registers. FMV
does not read the content of control registers making these features
unsuitable for runtime dispatch. See the ACLE patch for more info:
https://github.com/ARM-software/acle/pull/355



To unsubscribe from these emails, change your notification settings at https://github.com/llvm/llvm-project/settings/notifications