On 28/11/13 17:29, Richard Sandiford wrote:
> The existing ltu_p fast path can handle any pairs of single-HWI inputs,
> even for precision > HOST_BITS_PER_WIDE_INT.  In that case both xl and
> yl are implicitly sign-extended to the larger precision, but with the
> extended values still being compared as unsigned.  The extension doesn't
> change the result in that case.
> 
> When compiling a recent fold-const.ii, this reduces the number of
> ltu_p_large calls from 23849 to 697.
> 

Are these sorts of nuggets of information going to be recorded anywhere?

R.


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