https://issues.dlang.org/show_bug.cgi?id=18921
Issue ID: 18921
Summary: make core.internal.hash cater to memberwise hash
chaining
Product: D
Version: D2
Hardware: All
OS: All
Status: NEW
Severity: enhancement
Priority: P1
Component: druntime
Assignee: nob...@puremagic.com
Reporter: n8sh.second...@hotmail.com
For use in memberwise hashing of structs (as in issue #18918) or in hashing
arrays, speed up the hashing of individual scalars.
Right now, for a `struct` where each field is `uint`, memberwise chained
hashing has a 250% speed penalty with LDC2 and a 350% speed penalty on DMD2
compared to treating the struct as an array of bytes. This seems fairly
constant regardless of the size of the struct.
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