[PATCH 4/8] libstdc++: Add missing constexpr on simd shift implementation

[Jonathan Wakely]

On Thu, 23 Feb 2023 at 08:55, Matthias Kretz via Libstdc++
<libstdc++@gcc.gnu.org> wrote:
>
>
>
> Resolves -Wtautological-compare warnings about `if
> (__builtin_is_constant_evaluated())` in the implementations of these
> functions.

The 'inline' is redundant now, because these are unconditionally
constexpr which implies inline.

OK for all branches, with or without removing the 'inline'.


>
> Signed-off-by: Matthias Kretz <m.kretz@gsi.de>
>
> libstdc++-v3/ChangeLog:
>
>         * include/experimental/bits/simd_x86.h (_S_bit_shift_left)
>         (_S_bit_shift_right): Declare constexpr. The implementation was
>         already expecting constexpr evaluation.
> ---
>  libstdc++-v3/include/experimental/bits/simd_x86.h | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
>
>
> --
> ──────────────────────────────────────────────────────────────────────────
>  Dr. Matthias Kretz                           https://mattkretz.github.io
>  GSI Helmholtz Centre for Heavy Ion Research               https://gsi.de
>  stdₓ::simd
> ──────────────────────────────────────────────────────────────────────────