http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45878
Iain Sandoe <iains at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2010.10.04 07:32:12
CC| |hubicka at gcc dot gnu.org,
| |iains at gcc dot gnu.org
Summary|Can't compile even a |[4.6 Regression] Can't
|trivial ObjC program with |compile even a trivial ObjC
|-fexceptions -O2 |program with -fexceptions
| |-O2
Ever Confirmed|0 |1
--- Comment #1 from Iain Sandoe <iains at gcc dot gnu.org> 2010-10-04 07:32:12
UTC ---
the change was:
http://gcc.gnu.org/ml/gcc-cvs/2010-10/msg00090.html
this also applies to any method call compiled with -fnext-runtime -O > 0.
I looked at the gimple out from a trivial program at O0 and O1 and didn't see
any material difference around the call construction - which implies that this
is not an optimization problem, but simply that the check doesn't get exercised
at O0).
The code in question is gcc/objc/objc-act.c:6645-6722
It seems that, although we think we cast the function type in
build_method_call, something is not working (or perhaps the type information is
not set properly elsewhere).
cc-ing Honza in case he has some ideas :-) ...
.. (I discussed on irc with him and we came to the initial conclusion that this
is prob. a FE problem).
