Optimising ARM DMBs

[Tim Northover]

Hi Reinoud,

On 1 April 2014 11:35, Renato Golin <renato.golin at linaro.org> wrote:
> The patch looks good to me, but I'd rather wait for other people's
> views on the atomics side (Tim?).

I've taken a look at the patch, and I think the only suggestion I'd
have is to put this pass before ConstantIslands. It's probably OK
because you're only removing instructions, but ConstantIslands does
some very delicate computations on reachability of instruction offsets
and the less that happens afterwards, the better.

Cheers.

Tim.