Re: [avr-libc-dev] Considerable Compiler improvement neeeds testing

[E. Weddington]

Dmitry K. wrote:

> Functions are from avr-libc-1.2.0, without ones too small or asm.
> (`*-new' are from patches).
>
> Results are in form: prog_words + stack_bytes
>
> -mmcu=atmega8 -Os -frename-registers
>                3.2.3   3.3.5   3.3.5   3.4.3   4.0     4.0-nrr
> MODES_TIE:              0       1
>
> do_random       102+14   91+10   87+10   93+10  173+14  173+14
> vfprintf        672+36  652+36  649+36  626+36  694+37  694+37
> vfscanf         655+24  637+24  637+24  601+24  725+39  726+39
>
>  
These 3 look pretty good withe MODES_TIE 1, but they also are the ones 
that look pretty bad in 4.0. Is there any way to get these improved in 
4.0? Do they all have something in common that's currently bad in 4.0?

Interesting results. Thanks for the work!

Eric