[Bug target/59163] [4.8/4.9 Regression] program compiled with g++ -O3 segfaults

["ubizjak at gmail dot com" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59163

--- Comment #11 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Jakub Jelinek from comment #10)
> For stores I think the patch already allows that, that is the
>   if (GET_CODE (*x) == SET && &SET_DEST (*x) == data)
>     return 1;
> in there (the reason why I've added it was that for the misaligned store
> insns
> with UNSPEC_STOREU the misaligned MEM is in SET_DEST and SET_SRC just
> contains some rtl with UNSPEC_STOREU embedded somewhere in it.
> So, would you like:
>   if (GET_CODE (*x) == SET && (&SET_DEST (*x) == data || &SET_SRC (*x) ==
> data))
>     return 1;
> ?  That would IMHO handle simple loads from misaligned MEM too.

Yes. Perhaps also special case sse4.2 string instructions (they can operate on
unaligned data, too), and the patch covers everything.
>From gcc-bugs-return-436280-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Nov 29 16:41:13 2013
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Subject: [Bug fortran/59313] gfortran.dg/erf_3.F90 FAILs on Solaris/SPARC
Date: Fri, 29 Nov 2013 16:41:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?idY313

Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2013-11-29
                 CC|                            |ebotcazou at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
I'm seeing this too.