On Tue, 29 Mar 2022 10:37:20 GMT, Claes Redestad <redes...@openjdk.org> wrote:
> In `LocalDate::ofEpochDays` we validate the epoch day input, then we also
> validate the year derived from that value. This second validation is
> redundant since the minimum and maximum valid epoch day line up with the
> first and last day of the minimum and maximum valid year, respectively. This
> patch replace this redundant runtime validation with a test.
>
> This reduces code complexity (increasing chance for inlining to happen) and
> removes a couple of branches from generated code.
test/jdk/java/time/test/java/time/TestLocalDate.java line 432:
> 430: long minYear = ChronoField.YEAR.range().getMinimum();
> 431: long maxYear = ChronoField.YEAR.range().getMinimum();
> 432: for (int i = 0; i < 500; i++) {
The 500 seems like it would burn a lot of cycles mostly redundant.
How about { 1, 2, 3, 28, 29, 30, 31, 32, 363, 364, 365, 366, 367}.
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PR: https://git.openjdk.java.net/jdk/pull/8014
