[Bug c/107315] New: The "long double float" is only 64 bit on Apple Silicon MacBook

[hengxu at bao dot ac.cn]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107315

            Bug ID: 107315
           Summary: The "long double float" is only 64 bit on Apple
                    Silicon MacBook
           Product: gcc
           Version: 12.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hengxu at bao dot ac.cn
  Target Milestone: ---

The long double seems to be the same with double in gcc on Apple Silicon
(Arm64) MacBook. 
Do we have any method to use 128 Bit long double on this platform? 

If it is not supported at previous stage, do we have any plan for supporting
128 bit long double in the near future?