[Bug c/103406] gcc -O0 behaves differently on "DBL_MAX related operations" than gcc -O1 and above

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103406

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
           Keywords|                            |wrong-code
   Last reconfirmed|                            |2021-11-24

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Already .original at -O0 has

    double x = -0.0;
    double y = 0.0;
    double z = x + y;
  printf ((const char * restrict) "%lf\n", z);