[Bug target/19923] [4.0/4.1 Regression] openssl is slower when compiled with gcc 4.0 than 3.3

[rakdver at atrey dot karlin dot mff dot cuni dot cz]

------- Additional Comments From rakdver at atrey dot karlin dot mff dot cuni dot cz  2005-06-24 16:24 -------
Subject: Re:  [4.0/4.1 Regression] openssl is slower when compiled with gcc 4.0 than 3.3

> I don't see how the precious register would matter much.  But this compare 
> with memory is strange: 
>  
>         cmpl    %ecx, 12(%ebp) 
>  
> Why isn't len loaded into a register?? 

You answer your own question -- because there is no register free;
that's why the precisious register maters that much.

(I guess; I may be wrong).

Zdenek


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19923