Re: [avr-gcc-list] register allocation - something not right

[E. Weddington]

address@hidden wrote:

> Eric,
>
> my experiments are WITHOUT new-ra for the very reason you state.
>
> My point was that avr register allocation order and/or function call register 
> assigment are not sympathetic. Better code is produced using a different 
> register allocation order.
Would you define "better code" as "smaller code"? :-)

> I have yet to try changing the function parameter registers (that is bit more 
> involved and I am now sidetracked on code improvements and better cost 
> modelling)
>
>  

There are a number of people who would be interested in any results of 
experiments with register allocation order/assignment that show an 
improvement in the size of code generation. What would be incredibly 
helpful is if a GCC patch could be developed that shows improvements in 
practically all cases...

Eric