patches for increased performance of matmul, dotprod, transpose

[Jerry DeLisle]

Tobias Schlüter wrote:
> If the manual loop unrolling is really helpful, I think an optimizer bug
> should be filed.  On IRC our optimizer guys told me that at least the
> modification to matmul should already be done automatically, so I'm wondering,
>   if you have any benchmark numbers supporting this modification?  Can't the
> same effect be obtained by building libgfortran with -funroll-loops?
> 
Tobi,

I am just curious, is there an easy way to have the normal build process apply 
-funroll-loops to libgfortran or perhaps parts of libgfortran?


Or does one have to apply -funroll-loops and maybe other optimizations manually 
to the library?


Jerry