[PATCH] D36351: [lld][ELF] Add profile guided section layout

[Rui Ueyama via llvm-commits]

I rebased the patches to HEAD and tried to use it again. When I ran
`bin/llvm-profdata merge default.profraw -o default.profdata`, it creates
almost empty default.profdata and it shrunk default.profraw. That seems
pretty odd to me. Michael, do you know what is going on?

Before:

-rw-r-----  1 ruiu eng  29M Nov 27 17:39 default.profraw

After:

-rw-r-----  1 ruiu eng  560 Nov 27 17:39 default.profdata
-rw-r-----  1 ruiu eng 2.2M Nov 27 17:39 default.profraw

The rebased patch is available at https://reviews.llvm.org/D40534.

On Mon, Nov 27, 2017 at 2:01 PM, Davide Italiano <davide at freebsd.org> wrote:

> On Mon, Nov 27, 2017 at 1:49 PM, Rui Ueyama <ruiu at google.com> wrote:
> > I'm so sorry that I didn't respond in a timely manner. I'm reading it
> again
> > now.
> >
>
> No worries, definitely not your fault. The whole back and forth has
> been a little slow, but this has been around for almost 6 months now
> (and has been in development for much longer) so we should really
> decide whether we want to ship it or kill it :)
>
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