[Bug target/11180] [avr-gcc] Optimization decrease performance of struct assignment.

[eweddington at cso dot atmel dot com]

------- Comment #13 from eweddington at cso dot atmel dot com  2007-09-11 16:10 -------
(In reply to comment #12)
> Andy Hutchinson wrote (comment #6) that addition a 'movdi' instruction improves
> the result. I have try to add a very simple 'movdi' (which split into 2 SImode
> instuctions). In result:
>    -O0  --> 85 words,
>    -O1,2,3,s  -->  50 words.
> Version is 4.2.1
> 

That's great! Dmitry, could you attach your patch?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11180