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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug gcov-profile/100751] __gcov_dump and __gcov_reset usage
Date: Thu, 27 May 2021 13:58:43 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100751

--- Comment #15 from Martin Li=C5=A1ka <marxin at gcc dot gnu.org> ---
> I'm trying to now when would __gcov_reset help us in seeing the counter
> values reset to ##### instead of old data(numbers like 4,1,3, etc in .c.g=
cov
> file).

Note that .gcda profiles are always merged after a program finishes.
__gcov_reset resets only run-time profile (counters collected so far during=
 a
run), so merging happens anyway. If you want to reset a .gcda file, then re=
move
it.=