[Bug ada/48835] Porting GNAT to GNU/Linux/m68k

[mikpe at it dot uu.se]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48835

--- Comment #29 from Mikael Pettersson <mikpe at it dot uu.se> 2011-09-10 09:52:34 UTC ---
(In reply to comment #28)
> Created attachment 24791 [details]
> working patch for gcc-4.7-20110709
> 
> gcc-4.7-20110709 bootstrapped fine with the attached forward-port of the
> gcc-4.5 patch.  I'm starting a bisection to see when trunk started to work
> again, hoping that the same change will unbreak 4.6.1.

After a lengthy bisection process, I've now finally identified r171341
<http://gcc.gnu.org/ml/gcc-cvs/2011-03/msg00765.html> as the critical change
that unbroke GNAT/m68k on trunk.  r171341 mixes cleanups with bugfixes, and is
far too big to backport as-is to 4.6, so I'm now trying to split it up to
identify a minimal bugfix-only fragment that unbreaks GNAT/m68k.