arrays are passed as pointer-to-struct with the array
element in the struct specified with an alignment attribute. I have
not tested method 2; it seems like a transformation which may work
despite being unaesthetic.
Regards,
Michael James
On 11/5/06, Dorit Nuzman <[EMAIL PROTECTED]>
Hello,
I have been playing with gcc's new (to me) auto vectorization
optimizations. I have a particular loop for which I have made external
provisions to ensure that the data is 16-byte aligned. I have tried
everything I can think of to give gcc the hint that it is operating on
aligned data, but
for(i=i0; i,
. I get the same results either way.
Again, help is appreciated. -- Thanks.
Regards,
Michael James
Hello,
I am trying to get gcc to optimize an inner math loop. The first part
of the loop computes a single precision float expression (which may or
may not be NAN), and the second part sums all of these results into a
double precision total:
Conceptually, the code is:
double sum = 0;
for(i=0;
