https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114979
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |INVALID
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
>From the ABI:
For calls that may call functions that use varargs or stdargs (prototype-less
calls or calls to functions containing ellipsis (...) in the declaration) %al
(16) is used as hidden argument to specify the number of vector registers used.
16) Note that the rest of %rax is undefined, only the contents of %al is
defined.
In this case you have a prototype-less call still. clang seems to recognize it
as one having a prototype here because of the final definition but I am not
100% sure if that is correct.
