[Bug rtl-optimization/55717] [4.8 Regression] ICE in form_sum, at reload.c:5400

[krebbel at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55717

--- Comment #7 from Andreas Krebbel <krebbel at gcc dot gnu.org> 2012-12-18 11:35:33 UTC ---
(In reply to comment #5)
> Created attachment 28987 [details]
> gcc48-pr55717.patch
> 
> Untested fix.  Instead of returning very likely bogus value x this patch
> returns NULL and let the callers deal with that as error (so they don't try
> that simplification, instead try some other or just punt at simplifying).

Thanks. I've tested your patch on s390 and s390x. No regressions.