LGTM, and committed :)
On Tue, Feb 20, 2024 at 11:46 PM Palmer Dabbelt <pal...@rivosinc.com> wrote:
>
> This came up recently as Edwin was looking through the test suite. A
> few of us were talking about this during the patchwork meeting and were
> surprised. Looks like this is the desired behavior, so let's at least
> document it.
>
> gcc/ChangeLog:
>
> * doc/invoke.texi: Document -mcpu.
>
> Signed-off-by: Palmer Dabbelt <pal...@rivosinc.com>
> ---
> gcc/doc/invoke.texi | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
> index 6ec56493e59..4a4bba9f1cd 100644
> --- a/gcc/doc/invoke.texi
> +++ b/gcc/doc/invoke.texi
> @@ -30670,6 +30670,8 @@ Permissible values for this option are:
> @samp{sifive-e20}, @samp{sifive-e21},
> @samp{sifive-s21}, @samp{sifive-s51}, @samp{sifive-s54}, @samp{sifive-s76},
> @samp{sifive-u54}, @samp{sifive-u74}, and @samp{sifive-x280}.
>
> +Note that @option{-mcpu} does not override @option{-march} or
> @option{-mtune}.
> +
> @opindex mtune
> @item -mtune=@var{processor-string}
> Optimize the output for the given processor, specified by microarchitecture
> or
> --
> 2.43.0
>
