Difference in assembly code generated (gfortran vs ifort) (optimization flags missing?)

[Thomas Koenig]

Steve wrote:

> It would also be interesting to see the result of replacing
> the loops with
> 
> 
>     res = matmul(mat, vec)
> 
> as tkoenig (and jerryd?) works on optimizing matmul.

For a 4*4 matrix and a 4 vector, with optimization, the code
will be inlined to equivalent DO loops. It should result in the
same speed as the explicit DO loops.

Regards

	Thomas