On Wed, 4 May 2022, Richard Earnshaw wrote:
>
>
> On 04/05/2022 12:14, Richard Biener wrote:
> > On Wed, May 4, 2022 at 12:16 PM Richard Earnshaw via Gcc-patches
> > wrote:
> >>
> >>
> >> Gimple isel already handles x CMP y ? -1 : 0 when lowering vector cond
> >> operations, but this can be gen
On 04/05/2022 12:14, Richard Biener wrote:
On Wed, May 4, 2022 at 12:16 PM Richard Earnshaw via Gcc-patches
wrote:
Gimple isel already handles x CMP y ? -1 : 0 when lowering vector cond
operations, but this can be generalized further when the comparison
forms a natural mask so that we can
On Wed, May 4, 2022 at 12:16 PM Richard Earnshaw via Gcc-patches
wrote:
>
>
> Gimple isel already handles x CMP y ? -1 : 0 when lowering vector cond
> operations, but this can be generalized further when the comparison
> forms a natural mask so that we can also handle x CMP y ? z : 0 by
> transfor
Gimple isel already handles x CMP y ? -1 : 0 when lowering vector cond
operations, but this can be generalized further when the comparison
forms a natural mask so that we can also handle x CMP y ? z : 0 by
transforming it into (x CMP y) & z. This will, in most cases save
having to load a register
