On Thu, Jan 20, 2022 at 02:31:52PM +0000, Richard W.M. Jones wrote:
> On Thu, Jan 20, 2022 at 02:30:24PM +0000, Richard W.M. Jones wrote:
> >
> > The qemu bug led to this optimizer mis-compilation bug which seems
> > very serious:
> >
> > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103721
> >
> > I'm not sure I would try GCC 12 generated code until this gets fixed.
>
> s/try/trust/
It is a serious bug, but the likelyhood that it triggers on other packages
is low. We don't mass rebuild again any time we fix some wrong-code issue
in gcc, that would be many times a year, only if we know it affects
significant amounts of packages. And even in those cases it can be a
targetted test mass rebuild with instrumented compiler to warn us that it
triggers that bug and from that determine what needs to be rebuilt (we've
done it several times in the past).
Jakub
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