[Bug tree-optimization/123431] [13/14/15/16 Regression] ICE with __builtin_constant_p and __builtin_va_arg_pack usage in ranger

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123431

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[13/14/15/16 Regression]    |[13/14/15/16 Regression]
                   |GCC trunk ICEs in the       |ICE with
                   |walloca GIMPLE pass         |__builtin_constant_p and
                   |(gimple_call_arg) when      |__builtin_va_arg_pack usage
                   |analyzing an always-inline  |in ranger
                   |varargs wrapper using       |
                   |__builtin_va_arg_pack() and |
                   |called as error(1).         |
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2026-01-07
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
gimple_range_op_handler::maybe_builtin_call needs to be defensive about the
number of call arguments to constant_p.