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

[pinskia at gcc dot gnu.org]

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

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-07-22 00:42:28 UTC ---
We have one internally at Cavium which is designed to run afterwards and merge
a few gcda file.  It is designed for how we run multi-core programs and write a
gcda file for each run.

And there one here:
http://gcc.gnu.org/ml/gcc-patches/2007-06/msg00423.html