Dorit wrote:
It looks like maybe a 64bit scalar-evolution issue - when I compile on
powerpc-linux with -m64, I also get the
"vect4.f:4: note: not consecutive access"
message.
This problem looks very similar to PR18403 which has been resolved a
while
ago:
...
When compiling for 64bit, there is an extra cast:
In the 64bit case however, the vectorizer dumps show that the
access-function returned for the index to array b is much more
compilcated
- the dataref analyzer doesn't seem to be able to extract the
evolution/step in this case, and concludes that the access is
non-consecutive:
...
Ah yes, this was a well-known issue in the days long before vectorization ...
In 1997, Richard Henderson hacked g77 to generate 64-bit array indices
on 64-bit machines to prevent these casts, which inhibited all sorts
of run-of-the-mill induction variable analysis ...
This is probably quite invasive.
Cheers,
--
Toon Moene - e-mail: [EMAIL PROTECTED] - phone: +31 346 214290
Saturnushof 14, 3738 XG Maartensdijk, The Netherlands
A maintainer of GNU Fortran 95: http://gcc.gnu.org/fortran/
