* [Bug target/93177] PPC: Missing many useful platform intrinsics
[not found] <bug-93177-4@http.gcc.gnu.org/bugzilla/>
@ 2022-10-04 22:34 ` pinskia at gcc dot gnu.org
2022-10-26 15:05 ` vital.had at gmail dot com
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From: pinskia at gcc dot gnu.org @ 2022-10-04 22:34 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93177
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |vital.had at gmail dot com
--- Comment #15 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
*** Bug 107155 has been marked as a duplicate of this bug. ***
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[not found] <bug-93177-4@http.gcc.gnu.org/bugzilla/>
2022-10-04 22:34 ` [Bug target/93177] PPC: Missing many useful platform intrinsics pinskia at gcc dot gnu.org
@ 2022-10-26 15:05 ` vital.had at gmail dot com
2022-10-26 15:15 ` iains at gcc dot gnu.org
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From: vital.had at gmail dot com @ 2022-10-26 15:05 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93177
--- Comment #16 from Sergey Fedorov <vital.had at gmail dot com> ---
For Darwin, PPC intrinsics already is there in Apple headers. Can it be added
into current GCC?
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[not found] <bug-93177-4@http.gcc.gnu.org/bugzilla/>
2022-10-04 22:34 ` [Bug target/93177] PPC: Missing many useful platform intrinsics pinskia at gcc dot gnu.org
2022-10-26 15:05 ` vital.had at gmail dot com
@ 2022-10-26 15:15 ` iains at gcc dot gnu.org
2022-10-26 16:30 ` segher at gcc dot gnu.org
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From: iains at gcc dot gnu.org @ 2022-10-26 15:15 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93177
--- Comment #17 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to Sergey Fedorov from comment #16)
> For Darwin, PPC intrinsics already is there in Apple headers. Can it be
> added into current GCC?
There is a version of the header on the FSF Apple branch, which means we can
forward port / check / add to the installation / test it. It might/might not
be useful to any other ppc sub-ports.
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[not found] <bug-93177-4@http.gcc.gnu.org/bugzilla/>
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2022-10-26 15:15 ` iains at gcc dot gnu.org
@ 2022-10-26 16:30 ` segher at gcc dot gnu.org
2022-10-26 19:17 ` iains at gcc dot gnu.org
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From: segher at gcc dot gnu.org @ 2022-10-26 16:30 UTC (permalink / raw)
To: gcc-bugs
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--- Comment #18 from Segher Boessenkool <segher at gcc dot gnu.org> ---
(In reply to Sergey Fedorov from comment #16)
> For Darwin, PPC intrinsics already is there in Apple headers. Can it be
> added into current GCC?
If it is in the Apple headers already, why would you need a separate copy
in GCC?
Also please note that as said many of those things do not work with current
GCC, and arguably didn't work with older GCC either, the user just got lucky
that the random translation he got did what he wanted :-/ Things like "sync"
or "dcbst" need proper dependencies, things like lwarx are *impossible* to
do, etc.
But thought-out patches are welcome :-)
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[not found] <bug-93177-4@http.gcc.gnu.org/bugzilla/>
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2022-10-26 16:30 ` segher at gcc dot gnu.org
@ 2022-10-26 19:17 ` iains at gcc dot gnu.org
2022-10-26 19:27 ` iains at gcc dot gnu.org
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From: iains at gcc dot gnu.org @ 2022-10-26 19:17 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93177
--- Comment #19 from Iain Sandoe <iains at gcc dot gnu.org> ---
Created attachment 53779
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53779&action=edit
introduce ppc_intrinsics.h for powerpc*-darwin.
This takes the header from the GCC-4.x apple debt branch (as present in SVN:
r113478) and
- updates the license.
- installs for powerpc*-darwin
It needs the test cases forward porting too.
However, it would be good to know if this solves the problems folks have
encountered here (if other ports want to try it, why only need to amend their
entry in gcc/config.gcc)
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@ 2022-10-26 19:27 ` iains at gcc dot gnu.org
2022-10-26 19:32 ` iains at gcc dot gnu.org
2022-10-28 20:52 ` vital.had at gmail dot com
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From: iains at gcc dot gnu.org @ 2022-10-26 19:27 UTC (permalink / raw)
To: gcc-bugs
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--- Comment #20 from Iain Sandoe <iains at gcc dot gnu.org> ---
the patch above does not seek to answer questions on validity - it simply
publishes the same header that was made available in the darwin toolchains (so
will be neither better nor worse than that)>
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@ 2022-10-26 19:32 ` iains at gcc dot gnu.org
2022-10-28 20:52 ` vital.had at gmail dot com
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From: iains at gcc dot gnu.org @ 2022-10-26 19:32 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93177
--- Comment #21 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to Segher Boessenkool from comment #18)
> (In reply to Sergey Fedorov from comment #16)
> > For Darwin, PPC intrinsics already is there in Apple headers. Can it be
> > added into current GCC?
>
> If it is in the Apple headers already, why would you need a separate copy
> in GCC?
it's an internal header in apple-gcc-4.x so not accessible to end users unless
using those compiles (nor usable like <altivec.h> by GCC for example).
Some projects appear to depend on it (whether broken or not)...
.. but I'd welcome some persuasive evidence that it does make things better.
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2022-10-26 19:32 ` iains at gcc dot gnu.org
@ 2022-10-28 20:52 ` vital.had at gmail dot com
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From: vital.had at gmail dot com @ 2022-10-28 20:52 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93177
--- Comment #22 from Sergey Fedorov <vital.had at gmail dot com> ---
(In reply to Iain Sandoe from comment #19)
> Created attachment 53779 [details]
> introduce ppc_intrinsics.h for powerpc*-darwin.
>
> This takes the header from the GCC-4.x apple debt branch (as present in SVN:
> r113478) and
> - updates the license.
> - installs for powerpc*-darwin
>
> It needs the test cases forward porting too.
> However, it would be good to know if this solves the problems folks have
> encountered here (if other ports want to try it, why only need to amend
> their entry in gcc/config.gcc)
Thank you! I will try it.
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