On Thu, Sep 9, 2021 at 4:00 PM Hongtao Liu wrote:
>
> On Thu, Sep 9, 2021 at 3:54 PM liuhongt wrote:
> >
> > Hi:
> > As a follow up of [1], the patch removes all scalar mode copysign related
> > post_reload splitter/define_insn and expand copysign directly into below
> > using
> > paradoxical
On Thu, Sep 9, 2021 at 3:54 PM liuhongt wrote:
>
> Hi:
> As a follow up of [1], the patch removes all scalar mode copysign related
> post_reload splitter/define_insn and expand copysign directly into below using
> paradoxical subregs.
[1] https://gcc.gnu.org/pipermail/gcc-patches/2021-September
Hi:
As a follow up of [1], the patch removes all scalar mode copysign related
post_reload splitter/define_insn and expand copysign directly into below using
paradoxical subregs.
op3 = op1 & ~mask;
op4 = op2 & mask;
dest = op3 | op4;
It can sometimes generate better code just like avx512dq
