[Issue 20466] Optimizer clobbering msw register when testing it for 0

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20466

Ketmar Dark <ketmar at ketmar.no-ip.org> changed:

           What    |Removed                     |Added
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                 CC|                            |ketmar at ketmar.no-ip.org

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