[Issue 18750] [Tracker] everything wrong with code generation for bt instruction

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18750

ag0aep6g <ag0aep6g at gmail.com> changed:

           What    |Removed                     |Added
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         Depends on|                            |20363


Referenced Issues:

https://issues.dlang.org/show_bug.cgi?id=20363
[Issue 20363] optimization with union, >> and ulong leads to wrong result
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