Re: octave-dev slow down

[John W. Eaton]

On 05/23/2017 12:19 PM, John W. Eaton wrote:
> On 05/23/2017 11:43 AM, Rik wrote:
>
> > As for the cause of this particular slowdown, I'm guessing that it might
> > be caused by not recognizing that a'*a can be passed directly to BLAS
> > for evaluation.
>
> Yes, that's what it looks like.

I checked in the following changeset.

  http://hg.savannah.gnu.org/hgweb/octave/rev/d2e300f7700c

Then I realized that this redefinition of the lhs and rhs methods for 
the tree_compound_binary_expression class would do the wrong thing in 
other cases where the intent was to have the compound_binary_expression 
object behave exactly like the binary_expression object, so I also 
checked in this change:

  http://hg.savannah.gnu.org/hgweb/octave/rev/d2748870db4e

jwe