On 06/14/16 03:28, Christophe Lyon wrote:
On 13 June 2016 at 21:06, Evandro Menezes wrote:
On 06/13/16 05:15, James Greenhalgh wrote:
Thanks for your patience on this patch series.
Just checked the series in.
If I'm not mistaken, it looks like you forgot to update the ChangeLog
files in yo
On 13 June 2016 at 21:06, Evandro Menezes wrote:
> On 06/13/16 05:15, James Greenhalgh wrote:
>>
>> Thanks for your patience on this patch series.
>
>
> Just checked the series in.
>
Hi Evandro,
If I'm not mistaken, it looks like you forgot to update the ChangeLog
files in your commits.
Christoph
On 06/13/16 05:15, James Greenhalgh wrote:
Thanks for your patience on this patch series.
Just checked the series in.
Thank y'all for your assistance and patience.
Cheers,
--
Evandro Menezes
nks for your patience on this patch series.
Thanks,
James
> From d791090aae6a29fa94d8fc10894ee1053b05bcc2 Mon Sep 17 00:00:00 2001
> From: Evandro Menezes
> Date: Mon, 4 Apr 2016 14:02:24 -0500
> Subject: [PATCH 3/3] [AArch64] Emit division using the Newton series
>
> 2016-04-04 Evandro Menezes
Rebasing the patch...
--
Evandro Menezes
>From d791090aae6a29fa94d8fc10894ee1053b05bcc2 Mon Sep 17 00:00:00 2001
From: Evandro Menezes
Date: Mon, 4 Apr 2016 14:02:24 -0500
Subject: [PATCH 3/3] [AArch64] Emit division using the Newton series
2016-04-04 Evandro Menezes
Wi
oid)
Thank you,
--
Evandro Menezes
>From e598b0df2e43f2e64254a0e1ddec608fd78025b1 Mon Sep 17 00:00:00 2001
From: Evandro Menezes
Date: Mon, 4 Apr 2016 14:02:24 -0500
Subject: [PATCH 3/3] [AArch64] Emit division using the Newton series
2016-04-04 Evandro Menezes
Wilco Dijkst
On Fri, May 27, 2016 at 05:57:30PM -0500, Evandro Menezes wrote:
> On 05/25/16 11:16, James Greenhalgh wrote:
> >On Wed, Apr 27, 2016 at 04:15:53PM -0500, Evandro Menezes wrote:
> >>gcc/
> >> * config/aarch64/aarch64-protos.h
> >> (tune_params): Add new member "approx_div_modes"
register_operand" "w")
+(match_operand:GPF 2 "register_operand" "w")))]
"TARGET_FLOAT"
"fdiv\\t%0, %1, %2"
[(set_attr "type" "fdiv")]
Thank you,
--
Evandro Menezes
>From a7d49bfa27cd3ae32
On Wed, Apr 27, 2016 at 04:15:53PM -0500, Evandro Menezes wrote:
>gcc/
> * config/aarch64/aarch64-protos.h
> (tune_params): Add new member "approx_div_modes".
> (aarch64_emit_approx_div): Declare new function.
> * config/aarch64/aarch64.c
> (generic_tunin
new option.
--
Evandro Menezes
>From 0bdd18af83a82377dd6b954c4e64904f6022a2b2 Mon Sep 17 00:00:00 2001
From: Evandro Menezes
Date: Mon, 4 Apr 2016 14:02:24 -0500
Subject: [PATCH 3/3] [AArch64] Emit division using the Newton series
2016-04-04 Evandro Menezes
Wilco Dijkstra
gcc/
* config/aarch
On 04/27/16 09:15, James Greenhalgh wrote:
So this is off for all cores currently supported by GCC? I'm not sure
I understand why we should take this if it will immediately be dead code?
Excuse me? Not only are other target maintainers free to evaluate if
this code is useful to them, but so
James Greenhalgh wrote:
> So this is off for all cores currently supported by GCC?
>
> I'm not sure I understand why we should take this if it will immediately
> be dead code?
I presume it was meant to have the vector variants enabled with -mcpu=exynos-m1
as that is where you can get a good gain
> diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c
> index b7086dd..21af809 100644
> --- a/gcc/config/aarch64/aarch64.c
> +++ b/gcc/config/aarch64/aarch64.c
> @@ -414,7 +414,8 @@ static const struct tune_params generic_tunings =
>0, /* max_case_values. */
>0, /* cac
gt;>> Ie. we saved
> >>> a multiply.
> >>>
> >>> In principle this could be done as a separate optimization pass that
> >>> tries to reassociate to reduce latency. However I'm not too
> >>> convinced this would b
x27;s best to do it explicitly.
I think that I see what you mean. I'll hack something tomorrow.
[AArch64] Emit division using the Newton series
2016-04-04 Evandro Menezes
Wilco Dijkstra
gcc/
* config/aarch64/aarch64-tuning-flags.def
hat I see what you mean. I'll hack something tomorrow.
[AArch64] Emit division using the Newton series
2016-04-04 Evandro Menezes
Wilco Dijkstra
gcc/
* config/aarch64/aarch64-tuning-flags.def
* config/aarch64/aarch64-protos.h
On 04/01/16 17:45, Wilco Dijkstra wrote:
Evandro Menezes wrote:
However, I don't think that there's the need to handle any special case
for division. The only case when the approximation differs from
division is when the numerator is infinity and the denominator, zero,
when the approximation r
Evandro Menezes wrote:
> However, I don't think that there's the need to handle any special case
> for division. The only case when the approximation differs from
> division is when the numerator is infinity and the denominator, zero,
> when the approximation returns infinity and the division, NA
On 04/01/16 16:22, Wilco Dijkstra wrote:
Evandro Menezes wrote:
The division variant should use the same latency reduction trick I mentioned
for sqrt.
I don't think that it applies here, since it doesn't have to deal with
special cases.
No it applies as it's exactly the same calculation: x *
Evandro Menezes wrote:
> > The division variant should use the same latency reduction trick I
> > mentioned for sqrt.
>
> I don't think that it applies here, since it doesn't have to deal with
> special cases.
No it applies as it's exactly the same calculation: x * rsqrt(y) and x *
recip(y). In
On 04/01/16 08:58, Wilco Dijkstra wrote:
Evandro Menezes wrote:
On 03/23/16 11:24, Evandro Menezes wrote:
On 03/17/16 15:09, Evandro Menezes wrote:
This patch implements FP division by an approximation using the Newton
series.
With this patch, DF division is sped up by over 100% and SF divisio
Evandro Menezes wrote:
On 03/23/16 11:24, Evandro Menezes wrote:
> On 03/17/16 15:09, Evandro Menezes wrote:
>> This patch implements FP division by an approximation using the Newton
>> series.
>>
>> With this patch, DF division is sped up by over 100% and SF division,
>> zilch, both on A57 and on
On 03/23/16 11:24, Evandro Menezes wrote:
On 03/17/16 15:09, Evandro Menezes wrote:
This patch implements FP division by an approximation using the Newton
series.
With this patch, DF division is sped up by over 100% and SF division,
zilch, both on A57 and on M1.
gcc/
* con
On 03/17/16 15:09, Evandro Menezes wrote:
This patch implements FP division by an approximation using the Newton
series.
With this patch, DF division is sped up by over 100% and SF division,
zilch, both on A57 and on M1.
gcc/
* config/aarch64/aarch64-tuning-flags.def
1.0.
Again, I look forward to your feedback.
Thank you,
--
Evandro Menezes
>From 5cd2a628086af3656b3242f0c4f41784646f52b1 Mon Sep 17 00:00:00 2001
From: Evandro Menezes
Date: Thu, 17 Mar 2016 14:44:55 -0500
Subject: [PATCH] [AArch64] Emit division using the Newton series
2016-03-17 Evandro Me
Emit division using the Newton series
2016-03-17 Evandro Menezes
gcc/
* config/aarch64/aarch64-tuning-flags.def
(AARCH64_EXTRA_TUNE_APPROX_DIV_{SF,DF}: New tuning macros.
* config/aarch64/aarch64-protos.h
(AARCH64_EXTRA_T
26 matches
Mail list logo
