On 04/27/16 09:23, James Greenhalgh wrote:
On Tue, Apr 12, 2016 at 01:14:51PM -0500, Evandro Menezes wrote:
On 04/05/16 17:30, Evandro Menezes wrote:
On 04/05/16 13:37, Wilco Dijkstra wrote:
I can't get any of these to work... Not only do I get a large
number of collisions and duplicated
code
On Tue, Apr 12, 2016 at 01:14:51PM -0500, Evandro Menezes wrote:
> On 04/05/16 17:30, Evandro Menezes wrote:
> >On 04/05/16 13:37, Wilco Dijkstra wrote:
> >>I can't get any of these to work... Not only do I get a large
> >>number of collisions and duplicated
> >>code between these patches, when I t
> On 04/05/16 17:30, Evandro Menezes wrote:
> > On 04/05/16 13:37, Wilco Dijkstra wrote:
> >> I can't get any of these to work... Not only do I get a large number
> >> of collisions and duplicated code between these patches, when I try
> >> to resolve them, all I get is crashes whenever I try to us
On 04/05/16 17:30, Evandro Menezes wrote:
On 04/05/16 13:37, Wilco Dijkstra wrote:
I can't get any of these to work... Not only do I get a large number
of collisions and duplicated
code between these patches, when I try to resolve them, all I get is
crashes whenever I try
to use sqrt (even rsqr
On 04/05/16 13:37, Wilco Dijkstra wrote:
I can't get any of these to work... Not only do I get a large number of
collisions and duplicated
code between these patches, when I try to resolve them, all I get is crashes
whenever I try
to use sqrt (even rsqrt stopped working). Do you have a patchset
On 04/01/16 17:45, Evandro Menezes wrote:
On 03/24/16 14:11, Evandro Menezes wrote:
On 03/17/16 17:46, Evandro Menezes wrote:
This patch refactors the function to emit the reciprocal square root
approximation to also emit the square root approximation.
This version of the patch cleans up the ch
On 03/24/16 14:11, Evandro Menezes wrote:
On 03/17/16 17:46, Evandro Menezes wrote:
This patch refactors the function to emit the reciprocal square root
approximation to also emit the square root approximation.
This version of the patch cleans up the changes to the MD files and
fixes some bugs
On 03/17/16 17:46, Evandro Menezes wrote:
This patch refactors the function to emit the reciprocal square root
approximation to also emit the square root approximation.
2016-03-23 Evandro Menezes
Wilco Dijkstra
gcc/
* config/aarch64/aarch64-tuning-flags.de
On Wed, Mar 16, 2016 at 02:45:37PM -0500, Evandro Menezes wrote:
> On 03/08/16 16:08, Evandro Menezes wrote:
> >On 02/16/16 14:56, Evandro Menezes wrote:
> >>On 12/08/15 15:35, Evandro Menezes wrote:
> >>>Emit square root using the Newton series
> >>>
> >>> 2015-12-03 Evandro Menezes
> >>>
> >
On 03/17/16 09:55, James Greenhalgh wrote:
On Wed, Mar 16, 2016 at 02:45:37PM -0500, Evandro Menezes wrote:
On 03/08/16 16:08, Evandro Menezes wrote:
On 02/16/16 14:56, Evandro Menezes wrote:
On 12/08/15 15:35, Evandro Menezes wrote:
Emit square root using the Newton series
2015-12-03 Ev
On 03/08/16 16:08, Evandro Menezes wrote:
On 02/16/16 14:56, Evandro Menezes wrote:
On 12/08/15 15:35, Evandro Menezes wrote:
Emit square root using the Newton series
2015-12-03 Evandro Menezes
gcc/
* config/aarch64/aarch64-protos.h (aarch64_emit_swsqrt):
Declare new
On 03/10/16 19:06, Wilco Dijkstra wrote:
Evandro Menezes wrote:
That's what I had in mind too, but around the approximation for x^-1/2
and using masks for vector cases thusly:
fcmne v3.4s, v0.4s, #0.0
frsqrte v1.4s, v0.4s
fmulv2.4s, v1.4s, v1.4s
frsqrts
Evandro Menezes wrote:
>
> I got the scalar version going, but I'm stuck with the vector version.
> As you can see above, I need to use the complement of the mask produced
> by FCMEQ to squelch the offending vector element. However, the way in
> which FCMEQ is defined in GCC, it produces an intege
On 03/10/16 19:06, Wilco Dijkstra wrote:
Evandro Menezes wrote:
That's what I had in mind too, but around the approximation for x^-1/2
and using masks for vector cases thusly:
fcmne v3.4s, v0.4s, #0.0
frsqrte v1.4s, v0.4s
fmulv2.4s, v1.4s, v1.4s
frsqrts
Evandro Menezes wrote:
>
> That's what I had in mind too, but around the approximation for x^-1/2
> and using masks for vector cases thusly:
>
>fcmne v3.4s, v0.4s, #0.0
> frsqrte v1.4s, v0.4s
> fmulv2.4s, v1.4s, v1.4s
> frsqrts v2.4s, v0.4s, v2.4s
> fm
On 03/10/16 13:10, Wilco Dijkstra wrote:
frsqrte s1, s0
fmul s2, s1, s1
frsqrts s2, s0, s2
fcmp s0, 0.0
fmul s1, s1, s2
fmul s2, s1, s1
fmul s1, s0, s1
frsqrts s2, s0, s2
fcsels1, s0, s1, eq
fmul s0, s1, s2
That's
On 03/10/16 10:52, Wilco Dijkstra wrote:
> Hi Evandro,
>
>> I have however encountered precision issues with DF, namely some benchmarks
>> in the SPECfp CPU2000 suite would fail to validate.
> Accuracy is not an issue, the computation is extremely accurate. The issue is
> that your patch doesn't
On 03/10/16 10:52, Wilco Dijkstra wrote:
Hi Evandro,
I have however encountered precision issues with DF, namely some benchmarks in
the SPECfp CPU2000 suite would fail to validate.
Accuracy is not an issue, the computation is extremely accurate. The issue is
that your patch doesn't support s
Hi Evandro,
> I have however encountered precision issues with DF, namely some benchmarks
> in the SPECfp CPU2000 suite would fail to validate.
Accuracy is not an issue, the computation is extremely accurate. The issue is
that your patch doesn't support sqrt(0.0) - it returns NaN rather than z
On 03/08/16 16:08, Evandro Menezes wrote:
On 02/16/16 14:56, Evandro Menezes wrote:
On 12/08/15 15:35, Evandro Menezes wrote:
Emit square root using the Newton series
2015-12-03 Evandro Menezes
gcc/
* config/aarch64/aarch64-protos.h (aarch64_emit_swsqrt):
Declare new
On 03/08/16 16:08, Evandro Menezes wrote:
On 02/16/16 14:56, Evandro Menezes wrote:
On 12/08/15 15:35, Evandro Menezes wrote:
Emit square root using the Newton series
2015-12-03 Evandro Menezes
gcc/
* config/aarch64/aarch64-protos.h (aarch64_emit_swsqrt):
Declare new
On 02/16/16 14:56, Evandro Menezes wrote:
On 12/08/15 15:35, Evandro Menezes wrote:
Emit square root using the Newton series
2015-12-03 Evandro Menezes
gcc/
* config/aarch64/aarch64-protos.h (aarch64_emit_swsqrt):
Declare new
function.
* config/a
On 02/16/16 14:56, Evandro Menezes wrote:
On 12/08/15 15:35, Evandro Menezes wrote:
Emit square root using the Newton series
2015-12-03 Evandro Menezes
gcc/
* config/aarch64/aarch64-protos.h (aarch64_emit_swsqrt):
Declare new
function.
* config/a
On 02/26/16 17:42, Evandro Menezes wrote:
On 02/26/16 08:59, James Greenhalgh wrote:
On Mon, Feb 22, 2016 at 06:50:44PM -0600, Evandro Menezes wrote:
In preparation for the patch adding the Newton series also for
square root, I'd like to propose this patch changing the name of the
existing tuni
On 02/26/16 08:59, James Greenhalgh wrote:
On Mon, Feb 22, 2016 at 06:50:44PM -0600, Evandro Menezes wrote:
In preparation for the patch adding the Newton series also for
square root, I'd like to propose this patch changing the name of the
existing tuning flag for the reciprocal square root.
Th
On Mon, Feb 22, 2016 at 06:50:44PM -0600, Evandro Menezes wrote:
> In preparation for the patch adding the Newton series also for
> square root, I'd like to propose this patch changing the name of the
> existing tuning flag for the reciprocal square root.
This is fine, other names like sw_rsqrt, e
On 12/10/15 04:30, Kyrill Tkachov wrote:
On 09/12/15 18:50, Evandro Menezes wrote:
On 12/09/2015 11:16 AM, Kyrill Tkachov wrote:
On 09/12/15 17:02, Kyrill Tkachov wrote:
On 09/12/15 16:59, Evandro Menezes wrote:
On 12/09/2015 10:52 AM, Kyrill Tkachov wrote:
Hi Evandro,
On 08/12/15 21:35,
On 12/08/15 15:35, Evandro Menezes wrote:
Emit square root using the Newton series
2015-12-03 Evandro Menezes
gcc/
* config/aarch64/aarch64-protos.h (aarch64_emit_swsqrt):
Declare new
function.
* config/aarch64/aarch64-simd.md (sqrt2): New
expa
On 09/12/15 18:50, Evandro Menezes wrote:
On 12/09/2015 11:16 AM, Kyrill Tkachov wrote:
On 09/12/15 17:02, Kyrill Tkachov wrote:
On 09/12/15 16:59, Evandro Menezes wrote:
On 12/09/2015 10:52 AM, Kyrill Tkachov wrote:
Hi Evandro,
On 08/12/15 21:35, Evandro Menezes wrote:
Emit square root
On 12/09/2015 11:16 AM, Kyrill Tkachov wrote:
On 09/12/15 17:02, Kyrill Tkachov wrote:
On 09/12/15 16:59, Evandro Menezes wrote:
On 12/09/2015 10:52 AM, Kyrill Tkachov wrote:
Hi Evandro,
On 08/12/15 21:35, Evandro Menezes wrote:
Emit square root using the Newton series
2015-12-03 Evan
On 09/12/15 17:02, Kyrill Tkachov wrote:
On 09/12/15 16:59, Evandro Menezes wrote:
On 12/09/2015 10:52 AM, Kyrill Tkachov wrote:
Hi Evandro,
On 08/12/15 21:35, Evandro Menezes wrote:
Emit square root using the Newton series
2015-12-03 Evandro Menezes
gcc/
* config/aarc
On 09/12/15 16:59, Evandro Menezes wrote:
On 12/09/2015 10:52 AM, Kyrill Tkachov wrote:
Hi Evandro,
On 08/12/15 21:35, Evandro Menezes wrote:
Emit square root using the Newton series
2015-12-03 Evandro Menezes
gcc/
* config/aarch64/aarch64-protos.h (aarch64_emit_swsqrt)
On 12/09/2015 10:52 AM, Kyrill Tkachov wrote:
Hi Evandro,
On 08/12/15 21:35, Evandro Menezes wrote:
Emit square root using the Newton series
2015-12-03 Evandro Menezes
gcc/
* config/aarch64/aarch64-protos.h (aarch64_emit_swsqrt):
Declare new
function.
Hi Evandro,
On 08/12/15 21:35, Evandro Menezes wrote:
Emit square root using the Newton series
2015-12-03 Evandro Menezes
gcc/
* config/aarch64/aarch64-protos.h (aarch64_emit_swsqrt):
Declare new
function.
* config/aarch64/aarch64-simd.md (sqrt2)
GCC Patches; Marcus Shawcroft; James Greenhalgh; Andrew Pinski; Benedikt
> Huber; philipp.toms...@theobroma-systems.com
> Subject: Re: [AArch64] Emit square root using the Newton series
>
> On 8 December 2015 at 21:35, Evandro Menezes wrote:
> >Emit square root using the Newt
On 8 December 2015 at 21:35, Evandro Menezes wrote:
>Emit square root using the Newton series
>
>2015-12-03 Evandro Menezes
>
>gcc/
> * config/aarch64/aarch64-protos.h (aarch64_emit_swsqrt):
>Declare new
> function.
> * config/aarch64/aarch64-
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