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[Bug bootstrap/55388] [4.8 regression] ICE in int_mode_for_mode at stor-layout.c:423 breaks sparc64-linux bootstrap


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55388

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2012-11-22
                 CC|                            |ebotcazou at gcc dot
                   |                            |gnu.org
     Ever Confirmed|0                           |1

--- Comment #8 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2012-11-22 08:32:51 UTC ---
> Thanks.  After trying and failing to convince it to fail in cross environment,
> it finally dawned on me that the failure was during stage 2, so presumably
> this is a miscompile of cc1plus.  Sorry for the runaround.

Yes, this looks like a miscompilation.

> I'll try to reproduce the failure on gcc62, but I'm guessing it will take
> a while to reach the failure point.

This reproduces only with Mikael's configure options, i.e. in release mode, so
it isn't that long.


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