Empty loop elimination in 4.0 ?

Paolo Bonzini bonzini@gnu.org
Wed Jan 12 09:50:00 GMT 2005


Luca Benini wrote:
> Andrew Pinski wrote:
> 
>> We can convert it if the sizeof(*f) is 1 or if f is a pattern
>> which can converted for use with memset.  
> 
> How many code-line to optimize 128 (at most) cases over 2^32 cases (at 
> least)?

Though, the common case of zeroing is caught by this optimization.

Paolo



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