naked zero_extracts longer than a word.

[Toon Moene]

Ian Lance Taylor wrote:

> I guess the obvious counterexample would be a processor which supported
> vector registers and supported bitfield operations on such registers.  I
> don't know of any such processors. 

The Control Data Cyber 205 (roughly '75-'85).

You could write the inner loop of the Sieve of Eratosthenes as a single 
vector instruction.

We do not have a (supported) port for that architecture.

Kind regards,

-- 
Toon Moene - e-mail: toon@moene.org - phone: +31 346 214290
Saturnushof 14, 3738 XG  Maartensdijk, The Netherlands
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Progress of GNU Fortran: http://gcc.gnu.org/gcc-4.4/changes.html