I totally agree with Andrew's statement. FP calculations should be evaluated as
the programmer wrote them down. All fiddling around with sequence or rounding
is evil. You lose reproducibility of results.
Regards,
Lutz
On 08.09.18, 11:26, "hotspot-dev on behalf of Andrew Haley"
<hotspot-dev-boun...@openjdk.java.net on behalf of a...@redhat.com> wrote:
On 09/06/2018 03:32 PM, Severin Gehwolf wrote:
> Right. I should note that ppc64, s390x and aarch64 ports don't have
> this optimization turned off as those overrides are in a x86 specific
> block. It appears it hasn't caused issues for these ports so far.
That's just dumb luck. We really should turn off the merging of FP
operations on all platforms.
--
Andrew Haley
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
EAC8 43EB D3EF DB98 CC77 2FAD A5CD 6035 332F A671
