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[Bug gcov-profile/81491] [8 Regression] PGO/LTO bootstrap: error: non-cold basic block 6 dominated by a block in the cold partition (15)
- From: "hubicka at ucw dot cz" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 20 Jul 2017 09:51:53 +0000
- Subject: [Bug gcov-profile/81491] [8 Regression] PGO/LTO bootstrap: error: non-cold basic block 6 dominated by a block in the cold partition (15)
- Auto-submitted: auto-generated
- References: <bug-81491-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81491
--- Comment #2 from Jan Hubicka <hubicka at ucw dot cz> ---
Hmm, I will take a look. The test is not really testing the right thing at
first place.
We should not look for dominance relationship, but whether BB is reachable over
path that does not enter cold partition. I does not make sense to return back
to hot
in such scenarios...
Honza