On Mon, Mar 20, 2023 at 01:43:41PM -0400, Michael Meissner wrote:
> On Fri, Mar 17, 2023 at 02:35:16PM -0500, Segher Boessenkool wrote:
> > On Thu, Mar 09, 2023 at 08:40:36PM -0500, Michael Meissner wrote:
> > /* { dg-final { scan-assembler {\m__divtc3\M} } } */
> >
> > It might well be that we can use a sloppier regexp here, but why would
> > we do that? It is a good thing to use the \m and \M constraint escapes
> > pretty much always.
>
> The last time I posted the patch, you said:
>
> | > +/* { dg-final { scan-assembler "bl __divtc3" } } */
> |
> | This name depends on what object format and ABI is in use (some have an
> | extra leading underscore, or a dot, or whatever).
>
> So the patch was an attempt to match the other cases.
I also said you could do {\mbl .?__divtc3\M} or similar, in cases where
you need to consider multiple ABIs. Just searching for a substring is
very suboptimal always.
> > Does this need backports?
>
> I think we will need backports for GCC 12. The issue exists in GCC 11, but I
> don't think that GCC 11 can really work on systems with IEEE long double,
> since
> a lot of the stuff to really finish up the support was not in GCC 11. I think
> I tried dropping the patch into GCC 12, and it looks like something else may
> be
> needed. I will look into it.
Okay, thanks. We'll see.
Segher
