gcc loop unrolling problem ??

Matt Fago fago@caltech.edu
Thu Feb 12 15:23:00 GMT 2004


> The number of unrollings depends on size of the loop and is bound to 8
> maximally.  Your loop has only single instruction so you get maximal
> unrolling.  See documentation of --param max-unrolled-insns,
> max-unroll-times and friends.

Is this also the case for loops with a constant number of iterations (my 
loops tend to be in powers of 3)? Should the documentation mention that 
the default value for max-unroll-times=8?


Thanks,
Matt



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