[Bug jit/87291] Add support for inline asm to libgccjit

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87291

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to bouanto from comment #4)
> So, an example like this:
> 
> ```c
> bool old;
> __asm__ ("btsl %2,%1\n\t" // Turn on zero-based bit #Offset in Base.
>          "sbb %0,%0"      // Use the CF to calculate old.
>    : "=r" (old), "+rm" (*Base)
>    : "Ir" (Offset)
>    : "cc");

Could we instead try to get this produced from normal gimple/C code?