[Issue 16189] Optimizer bug, with simple test case

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=16189

--- Comment #4 from Kirill Kryukov <kkryu...@gmail.com> ---
I thought this might be a regression, so I tested dmd versions down to 2.050.
But no, the bug is there in each and every one of them.

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