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[Bug gcov-profile/47618] Collecting multiple profiles and using all for PGO
- From: "steven at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sat, 21 Jul 2012 23:57:18 +0000
- Subject: [Bug gcov-profile/47618] Collecting multiple profiles and using all for PGO
- Auto-submitted: auto-generated
- References: <bug-47618-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47618
Steven Bosscher <steven at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2012-07-21
CC| |steven at gcc dot gnu.org
Ever Confirmed|0 |1
--- Comment #1 from Steven Bosscher <steven at gcc dot gnu.org> 2012-07-21 23:57:18 UTC ---
A tool to merge multiple gcda files shoulnd't be very difficult to write. I
don't think this should be done by the compiler itself, that would greatly
complicate things. But a separate tool, gcov-merge say, would work, and this
isn't a big job to create using libgcov (and gcov-dump as an example). You'd
also be able to merge profile information from different directories.
Would something like the above work for you?