[stage1][PATCH] Make TOPN counter dynamically allocated.

[Martin Liška]

On 6/2/20 3:19 PM, Martin Liška wrote:
> I'm suggesting to pre-allocate 16 gcov_kvp in the gcov run-time library.
> Please take a look at the attached patch. I also added a test-case that
> stresses that. I've just finished LTO PGO bootstrap of the GCC.
> 
> Ready for master?

There's V2 of the patch:

- guard __atomic_fetch_add in GCOV_SUPPORTS_ATOMIC

Martin
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