release_35 patches for unroll pragma

[Mark Heffernan]

Ping?  Hal or Aaron?  Is it too late to get these in?  I was on vacation
last week so wasn't able to follow up earlier on this.

Thanks,
Mark


On Tue, Jul 29, 2014 at 12:35 PM, Mark Heffernan <meheff at google.com> wrote:

> Hi,
>
> Below are a handful of patches I submitted last week for the loop unroll
> pragma which would be nice to get into 3.5.  The bug fix and metadata
> renaming ones I'd particularly like to see get in.  The "#pragma nounroll"
> is more of a nice-to-have.  All of the patches should only affect code
> which uses one of the forms of the loop unroll pragmas.
>
> Rename metadata.  In unroll pragma syntax and loop hint metadata, change
> "enable" forms to a new form using the string "full":
> r213771 (clang)
> r213772 (llvm)
> r213775 (fix broken test caused by r213771)
>
> Add support for #pragma nounroll :
> r213885
>
> Bug fixes:
> r213789 : Do not add unroll disable metadata after unrolling pass for
> loops with #pragma clang loop unroll(full).
> r213900 : Fix bug where some loops with loop unroll_count(N) would
> mistakenly not be unrolled.
>
> Let me know if these are reasonable.
>
> Thanks!
> Mark
>
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