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[Bug driver/56244] -O3 should imply -funroll-loops
- From: "Joost.VandeVondele at mat dot ethz.ch" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 08 Feb 2013 08:36:44 +0000
- Subject: [Bug driver/56244] -O3 should imply -funroll-loops
- Auto-submitted: auto-generated
- References: <bug-56244-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56244
Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> changed:
What |Removed |Added
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CC| |Joost.VandeVondele at mat
| |dot ethz.ch
--- Comment #3 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> 2013-02-08 08:36:44 UTC ---
(In reply to comment #2)
> As noted elsewhere the RTL unroller is too agressive to be enabled by default.
> Only the -funroll-loops/ -fpeel-loops effect of the tree level unroller should
> be enabled by default.
Or should one instead consider having parameters for the RTL unroller to tune
it if needed ?
Are there currently command line options that allow for just enabling this on
the tree level, that would allow for some testing ?