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Re: PR tree-optimization/45605
- From: Jan Hubicka <hubicka at ucw dot cz>
- To: Nicola Pero <nicola dot pero at meta-innovation dot com>, mjambor at suse dot cz
- Cc: Jan Hubicka <hubicka at ucw dot cz>, gcc-patches at gcc dot gnu dot org, rguenther at suse dot de
- Date: Tue, 21 Sep 2010 12:25:54 +0200
- Subject: Re: PR tree-optimization/45605
- References: <1285062115.836912333@192.168.2.229>
>
> > Bootstrapped/regtested x86_64-linux, OK?
>
> Jan
>
> what you're doing is very exciting and I'm very supportive of the changes. :-)
>
> But unfortunately, this patch caused a regression in obj-c++/proto-lossage-3.mm
> on my i386 linux, where the compiler now segfaults (most likely nothing to with
> Objective-C++, I noticed just because I keep an eye on these ObjC/Obj-C++ tests).
>
> It all works (the compiler can compile obj-c++/proto-lossage-3.mm fine) up until
> exactly the subversion version number before you applied this patch. ;-)
>
> Could you have a look ? :-)
>
> Thanks a lot!
>
> PS: Here is a stack trace in case it helps --
>
> (gdb) run ./proto-lossage-3.mm
> Starting program: /opt/gcc/trunk2/libexec/gcc/i686-pc-linux-gnu/4.6.0/cc1objplus ./proto-lossage-3.mm
> sel_eq objc_hash_ptr objc_hash_string objc_compare_ptrs objc_compare_strings main __objc_gnu_init _GLOBAL__I_main
> Analyzing compilation unit
>
> Program received signal SIGSEGV, Segmentation fault.
> gimple_fold_obj_type_ref_known_binfo (token=0, known_binfo=0xb7d99070) at ../../trunk2/gcc/gimple-fold.c:1443
> 1443 fndecl = TREE_VALUE (v);
This seems like an incomplette binfo comming form obj-C++ FE. Martin, do you have some idea?
Honza