Re: Redundant logical operations left after early splitting

[Paolo Bonzini]

This  would indicate that simplify-rtx inside fwprop is removing OR Rx,0
but not picking up the the additionally revealed forward propagation 
oppertunities
This would seem to be an avoidable limitation.

Yes, can you send me your MD patch and a simple testcase?  fwprop is 
supposed to be "cascading", and some bugs in cascading were already 
revealed by the AVR port.

It might be even more worthwhile to try *moving* fwprop2 after combine, 
then.

Paolo