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[Bug driver/56244] -O3 should imply -funroll-loops
- 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: Fri, 08 Feb 2013 08:29:44 +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
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |enhancement
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> 2013-02-08 08:29:44 UTC ---
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.