[PATCH] Change loop unroll and vectorizer metadata prefix to 'llvm.loop.'

[Mark Heffernan]

On Wed, Jun 25, 2014 at 8:30 AM, Eli Bendersky <eliben at google.com> wrote:
> test/Bitcode/Output/upgrade-loop-metadata.ll.script: line 1:
> /media/SSD1/llvm/llvm_svn_rw/test/Bitcode/upgrade-loop-metadata.ll.bc: No
> such file or directory
> FileCheck error: '-' is empty.

Hmm.  Not sure how to include a binary file in an svn diff, so the
file is attached.

Mark

>
> --
>
> ********************
> Testing Time: 74.68s
> ********************
> Failing Tests (1):
>     LLVM :: Bitcode/upgrade-loop-metadata.ll
>
>
>
> Eli
>
>
>>
>> Thanks,
>> Mark
>>
>> On Tue, Jun 24, 2014 at 6:40 PM, Tyler Nowicki <tnowicki at apple.com> wrote:
>> > Hi Mark,
>> >
>> > I also have a weak preference for the llvm.loop.unroll/vectorize option
>> > because I would like to add metadata for interleaving and I think
>> > interleave.enable would look better than interleaver.enable. Otherwise LGTM!
>> >
>> > Tyler
>> >
>> > On Jun 24, 2014, at 4:28 PM, Hal Finkel <hfinkel at anl.gov> wrote:
>> >
>> >> ----- Original Message -----
>> >>> From: "Mark Heffernan" <meheff at google.com>
>> >>> To: "Hal Finkel" <hfinkel at anl.gov>
>> >>> Cc: llvm-commits at cs.uiuc.edu, "cfe-commits" <cfe-commits at cs.uiuc.edu>,
>> >>> "Pekka Jääskeläinen"
>> >>> <pekka.jaaskelainen at tut.fi>
>> >>> Sent: Tuesday, June 24, 2014 4:18:30 PM
>> >>> Subject: Re: [PATCH] Change loop unroll and vectorizer metadata prefix
>> >>> to 'llvm.loop.'
>> >>>
>> >>> The attached patch includes a note in ReleaseNotes.rst and code to
>> >>> autoupgrade llvm.vectorizer.* metadata strings to
>> >>> llvm.loop.vectorizer.* when reading assembly and bitcode.  PTAL.
>> >>
>> >> Okay, thanks. That's better. However, I just noticed that the proposed
>> >> mapping:
>> >>
>> >>> llvm.vectorizer.* => llvm.loop.vectorizer.*
>> >>> llvm.loopunroll.* => llvm.loop.unroll.*
>> >>
>> >> is not grammatically consistent. I think that we should have
>> >> ("llvm.loop.vectorize" and "llvm.loop.unroll") or ("llvm.loop.vectorizer"
>> >> and "llvm.loop.unroller"). I have a weak preference for the first pair, but
>> >> I care more about consistency than the choice.
>> >>
>> >> -Hal
>> >>
>> >>>
>> >>> Thanks!
>> >>> Mark
>> >>>
>> >>> On Tue, Jun 24, 2014 at 9:53 AM, Hal Finkel <hfinkel at anl.gov> wrote:
>> >>>> ----- Original Message -----
>> >>>>> From: "Mark Heffernan" <meheff at google.com>
>> >>>>> To: "Hal Finkel" <hfinkel at anl.gov>
>> >>>>> Cc: llvm-commits at cs.uiuc.edu, "cfe-commits"
>> >>>>> <cfe-commits at cs.uiuc.edu>, "Pekka Jääskeläinen"
>> >>>>> <pekka.jaaskelainen at tut.fi>
>> >>>>> Sent: Tuesday, June 24, 2014 11:18:33 AM
>> >>>>> Subject: Re: [PATCH] Change loop unroll and vectorizer metadata
>> >>>>> prefix to 'llvm.loop.'
>> >>>>>
>> >>>>> Thanks for the comments.  I'll add something to the release notes.
>> >>>>>
>> >>>>> On Tue, Jun 24, 2014 at 3:52 AM, Hal Finkel <hfinkel at anl.gov>
>> >>>>> wrote:
>> >>>>>> Moreover, for metadata that was supported by the 3.4 release,
>> >>>>>> autoupgrade support should be added. Please do this before you
>> >>>>>> commit.
>> >>>>>
>> >>>>> By autoupgrade do you mean be permissive about what is accepted?
>> >>>>> That
>> >>>>> is, accept llvm.vectorizer.* and llvm.loop.vectorizer.* but only
>> >>>>> emit
>> >>>>> the llvm.loop form from the FE.  Or do you mean try to rename the
>> >>>>> metadata as soon as it parsed?  I can see how to do the first case
>> >>>>> (be
>> >>>>> permissive) easily, but for the second (rename metadata) do you
>> >>>>> have
>> >>>>> any suggestions for the best place to cut in (I'm fairly new to
>> >>>>> the
>> >>>>> code base)?
>> >>>>
>> >>>> No, I mean the second. I believe that most of the current logic for
>> >>>> this is in lib/IR/AutoUpgrade.cpp
>> >>>>
>> >>>> -Hal
>> >>>>
>> >>>>>
>> >>>>> Thanks!
>> >>>>> Mark
>> >>>>>
>> >>>>>>
>> >>>>>> -Hal
>> >>>>>>
>> >>>>>>>
>> >>>>>>> On Tue, Jun 24, 2014 at 12:30 AM, Mark Heffernan
>> >>>>>>> <meheff at google.com>
>> >>>>>>> wrote:
>> >>>>>>>> These patches rename the loop unrolling and loop vectorizer
>> >>>>>>>> metadata
>> >>>>>>>> such that they have a common 'llvm.loop.' prefix.  Metadata
>> >>>>>>>> name
>> >>>>>>>> changes:
>> >>>>>>>>
>> >>>>>>>> llvm.vectorizer.* => llvm.loop.vectorizer.*
>> >>>>>>>> llvm.loopunroll.* => llvm.loop.unroll.*
>> >>>>>>>>
>> >>>>>>>> This was a suggestion from an earlier review
>> >>>>>>>> (http://reviews.llvm.org/D4090) which added the loop
>> >>>>>>>> unrolling
>> >>>>>>>> metadata.  Two patches are attached.  One for front-end and
>> >>>>>>>> one
>> >>>>>>>> for
>> >>>>>>>> optimizer.
>> >>>>>>>>
>> >>>>>>>> Mark
>> >>>>>>>
>> >>>>>>>
>> >>>>>>>
>> >>>>>>> --
>> >>>>>>> --PJ
>> >>>>>>> _______________________________________________
>> >>>>>>> cfe-commits mailing list
>> >>>>>>> cfe-commits at cs.uiuc.edu
>> >>>>>>> http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits
>> >>>>>>>
>> >>>>>>
>> >>>>>> --
>> >>>>>> Hal Finkel
>> >>>>>> Assistant Computational Scientist
>> >>>>>> Leadership Computing Facility
>> >>>>>> Argonne National Laboratory
>> >>>>>
>> >>>>
>> >>>> --
>> >>>> Hal Finkel
>> >>>> Assistant Computational Scientist
>> >>>> Leadership Computing Facility
>> >>>> Argonne National Laboratory
>> >>>
>> >>
>> >> --
>> >> Hal Finkel
>> >> Assistant Computational Scientist
>> >> Leadership Computing Facility
>> >> Argonne National Laboratory
>> >>
>> >> _______________________________________________
>> >> llvm-commits mailing list
>> >> llvm-commits at cs.uiuc.edu
>> >> http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
>> >
>
>
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