* taking OpenCL C as a built-in lang of GCC?
@ 2019-09-12 14:49 Jianbin Fang
2019-09-12 14:59 ` Jonathan Wakely
2019-09-20 17:10 ` Jeff Law
0 siblings, 2 replies; 4+ messages in thread
From: Jianbin Fang @ 2019-09-12 14:49 UTC (permalink / raw)
To: gcc, gcc-help
Hello Guys,
I am working on OpenCL for a couple of years, and would like to ask, as for GCC, why not taking OpenCL C as a built-in language in its front-end?
As we know, most OpenCL kernel compilers are built based on Clang/LLVM, and now, Clang has taken the OpenCL C language as one of its built-in languages. On the other hand, I found no OpenCL implementations which are based on GCC. Do you have any idea of the reasons?
I have this question because some devices may not have LLVM backends, but only have their backends in GCC. In such a case, a natural way is to add a new font-end into GCC, and build a kernel compiler based on the GCC compiling passes. What are the difficulties behind this idea?
Regards,
Jianbin
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: taking OpenCL C as a built-in lang of GCC?
2019-09-12 14:49 taking OpenCL C as a built-in lang of GCC? Jianbin Fang
@ 2019-09-12 14:59 ` Jonathan Wakely
2019-09-20 17:10 ` Jeff Law
1 sibling, 0 replies; 4+ messages in thread
From: Jonathan Wakely @ 2019-09-12 14:59 UTC (permalink / raw)
To: Jianbin Fang; +Cc: gcc, gcc-help
On Thu, 12 Sep 2019 at 15:49, Jianbin Fang <jianbinfang@yeah.net> wrote:
>
> Hello Guys,
Please don't cross-post to gcc@gcc.gnu.org and gcc-help@gcc.gnu.org,
pick one list, not both.
> I am working on OpenCL for a couple of years, and would like to ask, as for GCC, why not taking OpenCL C as a built-in language in its front-end?
>
>
>
> As we know, most OpenCL kernel compilers are built based on Clang/LLVM, and now, Clang has taken the OpenCL C language as one of its built-in languages. On the other hand, I found no OpenCL implementations which are based on GCC. Do you have any idea of the reasons?
I think the reason is that nobody has written such a front end.
> I have this question because some devices may not have LLVM backends, but only have their backends in GCC. In such a case, a natural way is to add a new font-end into GCC, and build a kernel compiler based on the GCC compiling passes. What are the difficulties behind this idea?
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: taking OpenCL C as a built-in lang of GCC?
2019-09-12 14:49 taking OpenCL C as a built-in lang of GCC? Jianbin Fang
2019-09-12 14:59 ` Jonathan Wakely
@ 2019-09-20 17:10 ` Jeff Law
2019-09-20 19:17 ` Jason Merrill
1 sibling, 1 reply; 4+ messages in thread
From: Jeff Law @ 2019-09-20 17:10 UTC (permalink / raw)
To: Jianbin Fang, gcc, gcc-help
On 9/12/19 8:48 AM, Jianbin Fang wrote:
> Hello Guys,
>
>
>
> I am working on OpenCL for a couple of years, and would like to ask,
> as for GCC, why not taking OpenCL C as a built-in language in its
> front-end?
There's no inherent reason why we don't support OpenCL C. Someone would
just need to write a suitable front-end for GCC and contribute it.
jeff
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: taking OpenCL C as a built-in lang of GCC?
2019-09-20 17:10 ` Jeff Law
@ 2019-09-20 19:17 ` Jason Merrill
0 siblings, 0 replies; 4+ messages in thread
From: Jason Merrill @ 2019-09-20 19:17 UTC (permalink / raw)
To: Jeff Law; +Cc: Jianbin Fang, gcc Mailing List, gcc-help
On Fri, Sep 20, 2019, 1:10 PM Jeff Law <law@redhat.com> wrote:
> On 9/12/19 8:48 AM, Jianbin Fang wrote:
> > Hello Guys,
> >
> >
> >
> > I am working on OpenCL for a couple of years, and would like to ask,
> > as for GCC, why not taking OpenCL C as a built-in language in its
> > front-end?
> There's no inherent reason why we don't support OpenCL C. Someone would
> just need to write a suitable front-end for GCC and contribute it.
>
Or a patch to add it to the C front end.
>
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2019-09-20 19:17 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2019-09-12 14:49 taking OpenCL C as a built-in lang of GCC? Jianbin Fang
2019-09-12 14:59 ` Jonathan Wakely
2019-09-20 17:10 ` Jeff Law
2019-09-20 19:17 ` Jason Merrill
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