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Re: gcc-11: generate bad code for matplotlib with -O1/-O2 on mips64el



Paul Gevers <elbrus@debian.org> 于2023年4月27日周四 04:26写道:
>
> Hi mips porters,
>
> On Fri, 24 Feb 2023 23:10:29 +0000 James Addison <jay@jp-hosting.net> wrote:
> > Source: gcc-11
> > Control: forwarded -1 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104914
> >
> > Hi Frederic: I'm linking a forwarded GCC GNU bug report that I _think_ is the
> > upstream report matching this bug.  I found it from a related GitHub issue[1]
> > for matplotlib.
> >
> > The GCC bug reporter has done some work to create a minimal reproducer case.
> > Could you check whether the issue reported there is the same one as here?  (I
> > will do eventually, but am not familiar with C and do not have mips hardware
> > available so it may take some time)
> >
> > [1] - https://github.com/matplotlib/matplotlib/issues/21789
>
> We're you ever made aware of this bug in gcc-11 and gcc-12? Maybe a bit
> of your help is appropriate.
>

Sorry about that I forget this bug...
I will dig it.

> Paul



-- 
YunQiang Su


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