[Bug gcov-profile/47618] Collecting multiple profiles and using all for PGO

[petr.spacek at nic dot cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47618

--- Comment #19 from Petr Špaček <petr.spacek at nic dot cz> ---
Sure, I would be happy with any version, thank you!

For people who want to generate code coverage reports for parallel executions,
beware of https://github.com/linux-test-project/lcov/issues/37.