https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113484
--- Comment #2 from John Platts <john_platts at hotmail dot com> --- (In reply to Joseph S. Myers from comment #1) > It would of course be necessary to define the ABI used for _Float16 (and > _Complex _Float16) argument passing and return (in each PowerPC ABI for > which we support use of this feature). Should scalar _Float16 and _Complex _Float16 function parameters be first passed in the F1-F13 registers on PPC, following the same rules as float, double, _Complex _Float, and _Complex double function parameters (and with the _Float16 function parameters that are passed into F1-F13 be converted to double-precision floating point)? Should a scalar _Float16 result be returned in the F1 register on PPC, with the _Float16 result in the F1 register in double-precision floating point format (but rounded to the precision and range of a _Float16)?
