[Bug fortran/20945] about 2x perfomance regression in comparision with 3.4.2

2005-06-22 Thread denis dot nagorny at intel dot com
--- Additional Comments From denis dot nagorny at intel dot com 2005-06-22 14:34 --- Ok. It seems like this issue is mostly fixed now. I incresead NIT counter up to 200 and obtained following results: 3.4.2 ~ 3.4s old 4.0 ~ 6.4s mainline ~ 4.0s --

[Bug fortran/20945] about 2x perfomance regression in comparision with 3.4.2

2005-06-19 Thread fxcoudert at gcc dot gnu dot org
--- Additional Comments From fxcoudert at gcc dot gnu dot org 2005-06-19 07:34 --- On Pentium III (Coppermine), 864 MHz, 256 KB cache, with linux. Timing in seconds: g77: 9.52s gfortran: 9.49s g77 -O2: 3.11s gfortran -O2: 3.39s g77 -O3 -ffast-math: 3.09s gfortran -O3 -ffast-math:

[Bug fortran/20945] about 2x perfomance regression in comparision with 3.4.2

2005-04-18 Thread hjl at lucon dot org
-- What|Removed |Added CC||hjl at lucon dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20945

[Bug fortran/20945] about 2x perfomance regression in comparision with 3.4.2

2005-04-11 Thread denis dot nagorny at intel dot com
--- Additional Comments From denis dot nagorny at intel dot com 2005-04-11 13:20 --- Created an attachment (id=8591) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=8591action=view) Test for results reproducing -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20945

[Bug fortran/20945] about 2x perfomance regression in comparision with 3.4.2

2005-04-11 Thread pinskia at gcc dot gnu dot org
--- Additional Comments From pinskia at gcc dot gnu dot org 2005-04-11 13:28 --- I know that gfortran has some issue with inlining. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20945

[Bug fortran/20945] about 2x perfomance regression in comparision with 3.4.2

2005-04-11 Thread pinskia at gcc dot gnu dot org
--- Additional Comments From pinskia at gcc dot gnu dot org 2005-04-11 20:08 --- Note I think this is just the register allocator being stupid. See PR 18048 for another bug report about this. Though I note on ppc-darwin, I cannot reproduce the problem you see with your testcase. --