[llvm] r207528 - Add optimization remarks to the loop unroller and vectorizer.

[Diego Novillo]

On Tue, Apr 29, 2014 at 8:23 AM, David Blaikie <dblaikie at gmail.com> wrote:

>
> Test coverage? (I assume we've plumbed the remark stuff through llc so
> this can be tested in LLVM directly?)
>

These are doable, but may be tricky in general. Not all passes allow their
hand to be forced by overriding their cost model. This may mean additional
burden in the future if the current models change.

I've added some tests for cases that should not change too much.  The
coverage we have on the transformations is not complete either.  Some of
the loop unrolling features don't seem to be exercised.  I'll add more as I
find them in our code base.


Diego.
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