[Bug c++/123737] [15/16 Regression] GCC produces incorrect output when overloading operator, comma operator since r15-7089

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123737

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|GCC produces incorrect      |[15/16 Regression] GCC
                   |output when overloading     |produces incorrect output
                   |operator, comma operator    |when overloading operator,
                   |                            |comma operator since
                   |                            |r15-7089
           Keywords|                            |wrong-code
   Target Milestone|---                         |15.3
                 CC|                            |jakub at gcc dot gnu.org
      Known to fail|                            |15.1.0
   Last reconfirmed|                            |2026-01-21
      Known to work|                            |14.3.0
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I am 99% sure this is due to r15-7089-gf31d49d65412d0 which has
raw_data_min_len being 128.

Basically we lex this as a RAW_DATA but then don't resolve it using operator,
and just throw it away as for most comma operator it has no side effects except
in this case ...