[Issue 19946] In betterC filling an array with a non-zero value fails for types of size > 1 due to missing _memset16/_memset32/etc.

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19946

--- Comment #22 from Dlang Bot <dlang-bot at dlang.rocks> ---
@WalterBright updated dlang/dmd pull request #14790 "fix Issue 23218 -
cgxmm.d:1373 assert fail" mentioning this issue:

- handle byte, short, and int cases for bug 19946 (#14770)

https://github.com/dlang/dmd/pull/14790

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