Rename metadata llvm.loop.vectorize.unroll to llvm.loop.vectorize.interleave

[Mark Heffernan]

On Fri, Jul 18, 2014 at 2:11 PM, Tyler Nowicki <tnowicki at apple.com> wrote:

> Perhaps you could rename 'loop.vectorize.unroll' to
> 'loop.interleave.count'. That way in a future patch we could add
> 'loop.interleave.enable'.
>
> What do you think?
>

Sounds reasonable.  Happy to change it to whatever is most appropriate.

Mark


>
> Tyler
>
> On Jul 18, 2014, at 1:51 PM, Hal Finkel <hfinkel at anl.gov> wrote:
>
> > Nadav, Arnold,
> >
> > I think this makes sense. Do either of you object?
> >
> > -Hal
> >
> > ----- Original Message -----
> >> From: "Mark Heffernan" <meheff at google.com>
> >> To: llvm-commits at cs.uiuc.edu, "cfe-commits" <cfe-commits at cs.uiuc.edu>,
> "Hal Finkel" <hfinkel at anl.gov>, "Tyler
> >> Nowicki" <tnowicki at apple.com>
> >> Sent: Friday, July 18, 2014 3:44:00 PM
> >> Subject: Rename metadata llvm.loop.vectorize.unroll to
> llvm.loop.vectorize.interleave
> >>
> >>
> >> This patch rename metadata llvm.loop.vectorize.unroll to
> >> llvm.loop.vectorize.interleave to avoid confusion with the
> >> concatenation unroller metadata (llvm.loop.unroll). It fell out of a
> >> discussion on patch http://reviews.llvm.org/D4576 . On that patch
> >> there was some confusion about whether llvm.loop.vectorize.unroll
> >> controlled the traditional (concatenation) loop unroller. And IIRC
> >> this isn't the first time there has been this confusion. Renaming
> >> vectorize.unroll to vectorize.interleave also more closely matches
> >> the pragma which generates the metadata (#pragma clang loop
> >> interleave_count). There are still lots of uses of "unroll" within
> >> the code in function/variable names and comments. I have no
> >> intention of changing those.
> >>
> >>
> >> Mark
> >
> > --
> > Hal Finkel
> > Assistant Computational Scientist
> > Leadership Computing Facility
> > Argonne National Laboratory
>
>
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