[Bug inline-asm/94522] Enhancement request: asm goto with outputs

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94522

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |enhancement
   Last reconfirmed|                            |2020-04-07
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |WAITING
          Component|c                           |inline-asm

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Take:
asm goto ("" : "=r"(*m) :....);

Where does the store to *m happen?  Do you replicate it on to the label side
too?

What are the semantics for the above case on clang?  My bet is it is not well
defined and really broken.