RFR: 8265768 [aarch64] Use glibc libm impl for dlog, dlog10, dexp iff 2.29 or greater on AArch64.
Andrew Haley
aph at redhat.com
Tue May 25 11:33:16 UTC 2021
On 5/25/21 10:37 AM, Andrew Dinn wrote:
> if the graph only ever stays level or increases across the interval [x, x'] then we must have f(x) =< f(x')
>
> If the graph wiggles *up* and *down* across the interval [x, x'] we can allow f(x) > f(x').
Ah, OK. It's just that odd corner case. I think that probably only
happens in a few places such as sin(pi), and we don't attempt to use
a polynomial approximation that crosses such a range, so we have a
segment boundary at that point. (Guessing, but I haven't looked.)
--
Andrew Haley (he/him)
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
https://keybase.io/andrewhaley
EAC8 43EB D3EF DB98 CC77 2FAD A5CD 6035 332F A671
More information about the hotspot-dev
mailing list