[PATCH] Clean up sub_magnitudes and add_magnitudes in mpa

[Andreas Jaeger]

On Friday, February 08, 2013 17:33:45 Siddhesh Poyarekar wrote:
> Hi,
> 
> Attached patch is a cleanup of the add_magnitudes and sub_magnitudes
> functions.  The sub_magnitudes functions code is simplified by a bit
> and both functions have an accumulator in ZK to minimize writes to Z.
> The performance improvement due to this is quite minimal on x86_64
> (~1% for the pow function when computing in 768 bits precision) but
> the resulting code is simpler to read.  No regressions reported by the
> testsuite.  OK to commit?

Thanks, this looks fine,

Andreas
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