[Bug middle-end/114877] [11/12/13/14/15 Regression] wrong-code for frexp(NAN, &uninitialized)

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114877

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to fail|                            |9.5.0
      Known to work|                            |4.2.0
   Target Milestone|---                         |11.5
            Summary|wrong-code for frexp(NAN,   |[11/12/13/14/15 Regression]
                   |&uninitialized)             |wrong-code for frexp(NAN,
                   |                            |&uninitialized)
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2024-04-28
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
frexp folding was introduced with r0-79285-g7a2a25ab4f30cc for GCC 4.3.0 which
had the issue

BUT we produced good code until GCC 10.1.0 which changed the behavior of ccp
here.