https://gcc.gnu.org/bugzilla/show_bug.cgi?id=26831
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|sibcall, sibcall_value, |sibcall, sibcall_value:
|sibcall_pop, |standard names not
|sibcall_value_pop: |documented.
|standard names not |
|documented. |
--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
sibcall_pop and sibcall_value_pop support was removed in r6-2941.
But the sibcall and sibcall_value are still missing.
sibcall pattern is referenced from tm.texi too:
It is not uncommon for limitations of calling conventions to prevent
tail calls to functions outside the current unit of translation, or
during PIC compilation. The hook is used to enforce these restrictions,
as the @code{sibcall} md pattern cannot fail, or fall over to a
``normal'' call. The criteria for successful sibling call optimization
may vary greatly between different architectures.
