[Bug c/90898] [8/9/10 Regression] ICE in insert_clobber_before_stack_restore, at tree-ssa-ccp.c:2112

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90898

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|ice-on-valid-code           |accepts-invalid,
                   |                            |ice-on-invalid-code
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2019-06-18
          Component|middle-end                  |c
      Known to work|                            |4.6.4
   Target Milestone|---                         |8.4
     Ever confirmed|0                           |1

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
The builtin is not documented so I'd say we should simply make it inaccessible.
Else we need to provide verification of sensible use (and document the thing).