------- Comment #14 from jv244 at cam dot ac dot uk 2008-08-28 15:55 -------
It looks like 4.4 performs even worse than 4.3 on the attached testcase.
gfortran -ffast-math -march=native -O3 PR17088.f90
trunk: 0.52803299999999997
4.3.0: 0.49202999999999997
ifort -xhost -O2 PR17088.f90
ifort: 0.136008000000000
so trunk is somehow 4 times slower than ifort...
--
jv244 at cam dot ac dot uk changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|poor fortran optimisation at|[4.4 Regression] poor
|-O2/3 |fortran optimisation at -
| |O2/3
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17088
