[PATCH] D96757: [InstrProfiling] Use ELF section groups for counters, data and values

[Xinliang David Li via llvm-commits]

On Sun, Feb 21, 2021 at 2:36 PM Petr Hosek via Phabricator <
reviews at reviews.llvm.org> wrote:

> phosek added a comment.
>
> I plan on improving how `__llvm_prf_names` is constructed using the
> approach suggested in PR49155 in a follow up change.
>


Compression can reduce per object size and therefore the size of total
linker input.

If the size of name section in the final binary is the concern, we can make
the name section non loadable (like coverage map) then it can be stripped
from the binary and put into its own file. The llvm_profdata tool will need
to read this file in order to produce the index format because names won't
available in the raw profile any more.  The downside of this approach is
the reduced usability.

David



>
>
> Repository:
>   rG LLVM Github Monorepo
>
> CHANGES SINCE LAST ACTION
>   https://reviews.llvm.org/D96757/new/
>
> https://reviews.llvm.org/D96757
>
>
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