[Bug sanitizer/65000] ICE in in expand_builtin_eh_common, at except.c:2072

[rth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65000

Richard Henderson <rth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |rth at gcc dot gnu.org

--- Comment #10 from Richard Henderson <rth at gcc dot gnu.org> ---
Created attachment 34715
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34715&action=edit
proposed patch

Yes, marking the regions of __builtin_eh_copy_values sounds reasonable
(and yes, it does fix the ICE here).

I think it would be valuable to know what's different about ubsan that
we haven't seen this same ICE with plain C++.  I may spend a little bit
of time trying to reverse-engineer such a test case while this patch
goes through normal regression testing.