[Bug middle-end/72778] [7 Regression] internal compiler error: in create_pre_exit, at mode-switching.c:451

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72778

--- Comment #3 from Uroš Bizjak <ubizjak at gmail dot com> ---
The fix is not complete, I still get bootstrap failure with the above ICE when
building libgo with compiler, configured with "--with-arch=core-avx-i
--with-cpu=core-avx-i".

To be attached preprocessed source illustrates the problem.

./cc1 -O2 -fplan9-extensions -fexceptions -fnon-call-exceptions
-march=core-avx2 -fpreprocessed -quiet sema.i

/home/uros/gcc-svn/trunk/libgo/runtime/sema.goc: In function
‘sync_runtime_notifyListAdd’:
/home/uros/gcc-svn/trunk/libgo/runtime/sema.goc:347:1: internal compiler error:
in create_pre_exit, at mode-switching.c:451

 ^
0x12a6e8e create_pre_exit
        /home/uros/gcc-svn/trunk/gcc/mode-switching.c:437
0x12a6e8e optimize_mode_switching
        /home/uros/gcc-svn/trunk/gcc/mode-switching.c:534
0x12a6e8e execute
        /home/uros/gcc-svn/trunk/gcc/mode-switching.c:892
0xe475fd rest_of_handle_insert_vzeroupper
        /home/uros/gcc-svn/trunk/gcc/config/i386/i386.c:2685
0xe475fd execute
        /home/uros/gcc-svn/trunk/gcc/config/i386/i386.c:4068
Please submit a full bug report,
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