Re: [Qemu-devel] [PATCH RFC v1 3/3] target/ppc: Generate fence operations

[Richard Henderson]

On 04/06/2017 10:21 PM, Nikunj A Dadhania wrote:
> We do that in the macro:
>
>       if (len > 1) {                                          \
>           gen_check_align(ctx, t0, (len) - 1);                \
>       }                                                       \
>
> Would we still need a barrier before the alignment check?

Ah, that's where it's been placed.

So, the MO_ALIGN flag to tcg_gen_atomic_* takes care of the alignment check 
too.  So we could move this down into the failure path.


r~