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[Bug middle-end/41193] [4.5 Regression] slow compilation with graphite / ice with graphite
- From: "jv244 at cam dot ac dot uk" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 18 Sep 2009 15:18:41 -0000
- Subject: [Bug middle-end/41193] [4.5 Regression] slow compilation with graphite / ice with graphite
- References: <bug-41193-6642@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #6 from jv244 at cam dot ac dot uk 2009-09-18 15:18 -------
(In reply to comment #5)
> If possible please update the performance numbers with recent trunk.
much faster now at -O1 ;-)
fortran -fgraphite -c -O1 -ffast-math -funroll-loops -ftree-vectorize
-march=native -ftime-report PR41193.f90
PR41193.f90: In function ?__spherical_harmonics_MOD_cvy_lm?:
PR41193.f90:164:0: internal compiler error: in scan_tree_for_params, at
graphite-sese-to-poly.c:826
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
-O2 is now fast (7s)
-O3 is still very slow (381s)
gfortran -fgraphite -c -O3 -ffast-math -funroll-loops -ftree-vectorize
-march=native -ftime-report PR41193.f90
--
jv244 at cam dot ac dot uk changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ice-on-valid-code
Summary|[4.5 Regression] slow |[4.5 Regression] slow
|compilation with graphite |compilation with graphite /
| |ice with graphite
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41193