https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126123
Iain Sandoe <iains at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |MOVED
--- Comment #6 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to Avinash Jayakar from comment #5)
> (In reply to Iain Sandoe from comment #4)
>
> > Is there ever a case in the GCC code where we will emit EH = 1?
>
> Yes, with the change in r17-1992-ge4543a6ecc97a75 we introduce the new ppc
> specific builtin "__builtin_ppc_atomic_cas_local", where EH bit for l<>arx
> will be 1.
>
> But in all other cases it would be 0, and there are no optimizations in gcc,
> that would change the EH bit to 1 as of now.
OK - so it seems that darwin needs to add the support, it's not really
sufficient just to do a configure test.
I'm not too too worried - the last version of Xcode on macOS 10.5 can only
build GCC-10.5, so folks there have already to be used to needing to build some
extra tools to support trunk later GCC.
So moving this - to here:
https://github.com/iains/darwin-xtools/issues/24
