On Tue, 2 Nov 2021 10:30:42 GMT, Maurizio Cimadamore <mcimadam...@openjdk.org>
wrote:
>> src/jdk.incubator.foreign/share/classes/jdk/internal/foreign/Utils.java line
>> 111:
>>
>>> 109: class VarHandleCache {
>>> 110: private static final Map<ValueLayout, VarHandle> handleMap
>>> = new ConcurrentHashMap<>();
>>> 111: private static final Map<ValueLayout, VarHandle>
>>> handleMapNoAlignCheck = new ConcurrentHashMap<>();
>>
>> Something to consider later if this is an issue. Since the number of
>> `ValueLayout` instances is fixed, carrier x order = 18, we can use stable
>> arrays with ordinals on the instances.
>
> What about alignment?
Drat, `skipAlignmentCheck` misled me but perhaps there is still benefit for
common constants with 8 bit and size alignment and fallback otherwise.
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PR: https://git.openjdk.java.net/jdk/pull/5907
