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[Bug tree-optimization/61515] [4.9/5 Regression] Extremely long compile time for generated code
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 21 Oct 2014 11:53:42 +0000
- Subject: [Bug tree-optimization/61515] [4.9/5 Regression] Extremely long compile time for generated code
- Auto-submitted: auto-generated
- References: <bug-61515-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61515
--- Comment #21 from Richard Biener <rguenth at gcc dot gnu.org> ---
So to recap - apart from really fixing the quadraticness - it would be nice
if we can just disable threading over backedges at -O1, thus for
!flag_expensive_optimizations. Especially on the 4.9 branch.