[PATCH] x86: mark "k" and "Yk" constraints as non-internal

[Uros Bizjak]

On Thu, Jun 27, 2019 at 12:11 PM Jan Beulich <JBeulich@suse.com> wrote:
>
> Without these constraints asm() can't make use of mask registers.

asm should be deprecated. We have intrinsics for this purpose.

Uros.

> gcc/
> 2019-06-27  Jan Beulich  <jbeulich@suse.com>
>
>         * config/i386/constraints.md: Remove @internal from "k" and
>         "Yk".
>
> --- a/gcc/config/i386/constraints.md
> +++ b/gcc/config/i386/constraints.md
> @@ -79,10 +79,10 @@
>   "Second from top of 80387 floating-point stack (@code{%st(1)}).")
>
>  (define_register_constraint "Yk" "TARGET_AVX512F ? MASK_REGS : NO_REGS"
> -"@internal Any mask register that can be used as predicate, i.e. k1-k7.")
> +"Any mask register that can be used as predicate, i.e. k1-k7.")
>
>  (define_register_constraint "k" "TARGET_AVX512F ? ALL_MASK_REGS : NO_REGS"
> -"@internal Any mask register.")
> +"Any mask register.")
>
>  ;; Vector registers (also used for plain floating point nowadays).
>  (define_register_constraint "y" "TARGET_MMX ? MMX_REGS : NO_REGS"
>
>