[Bug tree-optimization/67055] [5/6 Regression] Segmentation fault in fold_builtin_alloca_with_align in tree-ssa-ccp.c

[hp at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67055

Hans-Peter Nilsson <hp at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |hp at gcc dot gnu.org

--- Comment #9 from Hans-Peter Nilsson <hp at gcc dot gnu.org> ---
Created attachment 36130
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36130&action=edit
rcutorture.c reduced, compile with -O2.

Everybody loves a C test-case.  This one will expose the same message for at
least cris-elf at -O2, so I presume it is the same bug.  Observed for r226568.

The attached file is reduced from kernel/rcu/rcutorture.c
git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git tag
next-20150720 compiling for cris-linux, but with the reduced code edited to
avoid warnings.

Thanks to Chen Gang for the initial report.