OK, This is the patch I prepare to check in.
-Original Message-
From: Uros Bizjak
Sent: Wednesday, November 24, 2021 4:49 PM
To: Kong, Lingling
Cc: Liu, Hongtao ; gcc-patches@gcc.gnu.org
Subject: Re: [PATCH] i386: vcvtph2ps and vcvtps2ph should be used to convert
_Float16 to SFmode
On Wed, Nov 24, 2021 at 9:44 AM Kong, Lingling wrote:
>
> Hi,
>
> vcvtph2ps and vcvtps2ph should be used to convert _Float16 to SFmode with
> -mf16c. So added define_insn extendhfsf2 and truncsfhf2 for target_f16c.
> Cleared before conversion, updated movhi_internal and
>
On Wed, Nov 24, 2021 at 9:06 AM Kong, Lingling wrote:
>
> Hi Uros,
>
> > BTW: When playing with my patch, I introduced (define_insn
> > "*vec_set_0" ...) to optimize scalar load to a vector. Does
> > ix86_expand_vector_set work OK without this pattern?
>
> Yes, ix86_expand_vector_set could
Hi Uros,
> BTW: When playing with my patch, I introduced (define_insn "*vec_set_0"
> ...) to optimize scalar load to a vector. Does ix86_expand_vector_set work OK
> without this pattern?
Yes, ix86_expand_vector_set could work ok with (define_insn
"_pinsr"), this insn can optimize scalar load
On Wed, Nov 24, 2021 at 7:25 AM Kong, Lingling via Gcc-patches
wrote:
>
> Hi,
>
> vcvtph2ps and vcvtps2ph should be used to convert _Float16 to SFmode with
> -mf16c. So added define_insn extendhfsf2 and truncsfhf2 for target_f16c.
> And cleared before conversion, updated movhi_internal and
>
>-Original Message-
>From: Kong, Lingling
>Sent: Wednesday, November 24, 2021 2:25 PM
>To: Liu, Hongtao ; gcc-patches@gcc.gnu.org
>Cc: Kong, Lingling
>Subject: RE: [PATCH] i386: vcvtph2ps and vcvtps2ph should be used to convert
>_Float16 to SFmode with -mf16c [PR 102811]
>
>Hi,
>
Hi,
vcvtph2ps and vcvtps2ph should be used to convert _Float16 to SFmode with
-mf16c. So added define_insn extendhfsf2 and truncsfhf2 for target_f16c.
And cleared before conversion, updated movhi_internal and
ix86_can_change_mode_class.
OK for master?
gcc/ChangeLog:
PR target/102811
On Tue, Nov 16, 2021 at 9:15 AM Kong, Lingling via Gcc-patches
wrote:
>
> Hi,
>
> vcvtph2ps and vcvtps2ph should be used to convert _Float16 to SFmode with
> -mf16c. So added define_insn extendhfsf2 and truncsfhf2 for target_f16c.
>
> OK for master?
No, this is the wrong approach. There can be
On Tue, Nov 16, 2021 at 4:15 PM Kong, Lingling via Gcc-patches
wrote:
>
> Hi,
>
> vcvtph2ps and vcvtps2ph should be used to convert _Float16 to SFmode with
> -mf16c. So added define_insn extendhfsf2 and truncsfhf2 for target_f16c.
>
> OK for master?
>
> gcc/ChangeLog:
>
> PR
