This fixes an AArch64 build failure:

python3 -B ../sysdeps/aarch64/fpu/scripts/bench_libmvec_advsimd.py bench-float-advsimd-cospi > …/benchtests/bench-float-advsimd-cospi.c
Traceback (most recent call last):
  File "…/sysdeps/aarch64/fpu/scripts/bench_libmvec_advsimd.py", line 106, in <module>
    main(sys.argv[1])
    ~~~~^^^^^^^^^^^^^
  File "…/sysdeps/aarch64/fpu/scripts/bench_libmvec_advsimd.py", line 81, in main
    with open(f"../benchtests/libmvec/{input_filename}") as f:
         ~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

FileNotFoundError: [Errno 2] No such file or directory: '../benchtests/libmvec/cospif-inputs'

Add __attribute_optimization_barrier__ to disable inlining and cloning on a
function.  For Clang, expand it to

__attribute__ ((optnone))

Otherwise, expand it to

__attribute__ ((noinline, clone))

Co-Authored-By: H.J. Lu <hjl.tools@gmail.com>
Reviewed-by: Sam James <sam@gentoo.org>

Random inputs in the range [-10,10].

Reviewed-by: DJ Delorie <dj@redhat.com>

Random inputs in the range [-10,10].

Reviewed-by: DJ Delorie <dj@redhat.com>

Random inputs in the range [-10,10].

Reviewed-by: DJ Delorie <dj@redhat.com>

The input is based on acosf one (random inputs in [-1,1]).

Reviewed-by: DJ Delorie <dj@redhat.com>

Random inputs in the range [-10,10].

Reviewed-by: DJ Delorie <dj@redhat.com>

Random inputs in the range [-10,10].

Reviewed-by: DJ Delorie <dj@redhat.com>

Random inputs in the range [-10,10].

Reviewed-by: DJ Delorie <dj@redhat.com>