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Re: [PATCH 0/4] rs6000: Merge most logical SI and DI patterns


On Sun, Aug 17, 2014 at 02:43:09PM -0400, David Edelsohn wrote:
> I wish that this patch did not need to use up another one of the
> primary constraint letters, but I guess there is no easy way around
> that.

It doesn't use a new constraint, but I guess you mean the new output
modifier (%e).

We can now get rid of %b, if ever we can remove any constraint or
output modifier (some asm code might use it, even if it was never
documented).

There are quite a few output codes and constraints we can do without.


Segher


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