Re: [patch] invoke.texi: Update -fopenmp and -fopenmp-simd for omp::decl and loop semantic

[Richard Biener <richard.guenther@gmail.com>]

On Mon, Sep 25, 2023 at 8:25 PM Tobias Burnus <tobias@codesourcery.com> wrote:
>
> I stumbled over this during the ARM64 talk at the cauldron as they
> consider using -fopenmp-simd by default.

Ah, forgot to ask during the talk - isn't __attribute__((simd(..))) exactly to
avoid the need for -fopenmp-simd?

> → https://gcc.gnu.org/wiki/cauldron2023 (I put my talk/BoF slides up;
> others aren't, yet)
>
> I did stumble over 'omp loop' with SIMD. It turns out that -fopenmp-simd
> just turns 'loop' into 'simd', ignoring whatever value the user has
> specified for the bind value.
>
> Additionally, [[omp::decl(...)]] was missing.
>
> Any comment to that patch before I commit it?
>
> Tobias
>
> PS: the [[omp::...]] needs a 'C++' → 'C/C++' change once omp:: support
> with C23's attributes is in.
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