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[Bug rtl-optimization/50557] [4.7 Regression] Register pressure increase after reassociation (x86, 32 bits)
- From: "pinskia at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 07 Dec 2011 04:01:36 +0000
- Subject: [Bug rtl-optimization/50557] [4.7 Regression] Register pressure increase after reassociation (x86, 32 bits)
- Auto-submitted: auto-generated
- References: <bug-50557-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50557
--- Comment #10 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-12-07 04:01:36 UTC ---
(In reply to comment #9)
> There is still the old loop re-rolling pass from the rtlopt-branch. I am not
> sure if there were any good reasons for not including it in GCC.
Maybe re-rolling could be pushed up to the tree level where it might catch a
few more things.