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

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

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

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

           What    |Removed                     |Added
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                 CC|                            |jsm28 at gcc dot gnu.org

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
The standard says the results are unspecified, it doesn't say *p is written to,
so I'm not sure there's a bug here.

Indeed we do

      case rvc_nan:
      case rvc_inf:
        /* For +-NaN or +-Inf, *exp is unspecified, return arg0.  */
        return omit_one_operand_loc (loc, rettype, arg0, arg1);