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

[Hal Finkel]

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