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All files in pl/math updated to 2023.
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To conclude the work on simplifying the runulp.sh script, a new macro
has been introduced to specify the intervals in which a routine should
be tested in the routine source. This is eventually consumed by
runulp.sh.
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Introduces a new set of macros and Make rules for mechanically
generating a list of ULP limits for each routine, to be consumed
by runulp.sh. This removes the need to maintain long lists of
thresholds in runulp.sh.
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Instead of maintaining three separate lists of routines, which
are cumbersome and prone to merge conflicts, we provide a new
macro, PL_SIG, which by some preprocessor machinery outputs the
lists in the required format (macro formats have been changed
very slightly to make the generation simpler). Only routines with
simple signatures are handled - binary functions still need
mathbench wrappers defined manually. As well, routines with
non-standard references (i.e. powi/powk) still need entries and
wrappers manually defined.
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New max observed for both Neon and SVE.
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Larger errors observed for several variants.
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New routine uses polynomial on a reduced interval, and is accurate to
2.5 ulp.
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