[Bug middle-end/113959] New: Optimize `__builtin_isnan(x) || __builtin_isinf(x)` to `__builtin_isfinite(x)`

[antoshkka at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113959

            Bug ID: 113959
           Summary: Optimize `__builtin_isnan(x) || __builtin_isinf(x)` to
                    `__builtin_isfinite(x)`
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Keywords: missed-optimization
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: antoshkka at gmail dot com
  Target Milestone: ---

Sometimes people check for finite number using `__builtin_isnan(x) ||
__builtin_isinf(x)`. However `__builtin_isfinite(x)` produces a better
assembly.

Please, add the optimization.

Godbolt playground: https://godbolt.org/z/5r38169fn