------- Comment #34 from irar at il dot ibm dot com 2009-07-27 08:36 -------
(In reply to comment #33)
> Using the example from comment 23 with
...
> gfortran shows: test.f90:12: note: not vectorized: unsupported use in stmt.
> and needs 2.272s. (By comparison. 4.4 needs 3.688s.)
This is for the inner loop vectorization. For the outer loop we get:
tmp.f90:11: note: not vectorized: control flow in loop.
because of the if's. Maybe loop unswitching can help us.
Vectorizable outer-loops look like this:
(pre-header)
|
header <---+
| |
inner-loop |
| |
tail ------+
|
(exit-bb)
Does ifort vectorize the exact same implemantion of minloc?
Ira
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31067
