[Bug gcov-profile/71672] inlining indirect calls does not work with autofdo

andi at firstfloor dot org gcc-bugzilla@gcc.gnu.org
Thu Apr 13 15:35:00 GMT 2017


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71672

--- Comment #2 from andi at firstfloor dot org ---
On Wed, Apr 12, 2017 at 12:15:26PM +0000, marxin at gcc dot gnu.org wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71672
> 
> Martin Liška <marxin at gcc dot gnu.org> changed:
> 
>            What    |Removed                     |Added
> ----------------------------------------------------------------------------
>                  CC|                            |marxin at gcc dot gnu.org
>            Assignee|unassigned at gcc dot gnu.org      |marxin at gcc dot gnu.org
> 
> --- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
> I will take a look as soon as autofdo issues will be resolved:
> https://github.com/google/autofdo/issues/43

event 79 is an event generated by the perf tools. As a workaround
you can use a older version of the perf tool (it should work even
with newer kernels).

The quipper library autofdo relies on is notoriously bad in keeping
up with perf changes, it only supports whatever ancient version Chrome
is currently shipping.

-Andi


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