On Wednesday 23 November 2016, Richard Biener wrote:
> On Tue, Nov 22, 2016 at 6:52 PM, Yuri Gribov wrote:
> > Hi all,
> >
> > I've recently revisited an ancient patch from Paolo
> > (https://gcc.gnu.org/ml/gcc-patches/2004-04/msg00551.html) which uses
> > asserts as optimization hints. I've rewr
The main problem with __assume is that it should never be used.
Literally, if you have to use it, then the code it refers to should
actually be commented out.
ps. This is a bit of a simplification - I should have stated, if the
assumption is wrong, it can lead to dangerous code which breaks.
Does this approach make sense in general? If it does I can probably
come up with more measurements.
Sounds good to me-not sure why there hasn't been more response to this, it
seems logical-
if functions can make assumptions such as pointerA != pointerB then that
leads the way for avoiding alia
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