r225244 - Sema: analyze I,J,K,M,N,O constraints

[Chandler Carruth]

On Thu, Jan 15, 2015 at 10:29 AM, Joerg Sonnenberger <
joerg at britannica.bec.de> wrote:

> See the inb example. All fixes are pessimations for the code. People
> complained enough about the (in)ability of __builtin_constant_p to get
> it delayed to the backend, this is IMO just the same.
>

I agree it is the same, however I have heard extremely little complaining
about __builtin_constant_p. I've also not heard any complaints other than
yours about this change -- most of the complaints I've heard have been
about the terribly brittle code it uncovered and is now getting fixed.
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