Gas can't handle prefix generated by gcc

[Zack Weinberg]

Zack Weinberg <zack@codesourcery.com> writes:

> "H. J. Lu" <hjl@lucon.org> writes:
>
>> It seems that gcc uses a prefix syntax which gas doesn't handle. Does
>> gcc always use " ; " as prefix separator?
>
> Yes.  It does that for cs/ds on branch hints, it does that for "rep"
> on string instructions, it does that for "lock" on atomic updates.

Correction - it uses either " ; " or \n\t in all the above cases.

zw