[Bug middle-end/114437] Inline asm with "+m, r" operand ignores input value

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114437

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |INVALID

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
These constraints don't do what think it does.

You can see the behavior by doing:
    asm volatile("#%0 %1" : "+m,r"(arg) : : "memory");


You get:
        #arg(%rip) .LC0(%rip)


Which is correct as `1` is stored in `.LC0(%rip)`.