[Issue 18730] dmd miscompiles core.bitop.bt with -O

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18730

Walter Bright <bugzilla at digitalmars.com> changed:

           What    |Removed                     |Added
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                 CC|                            |bugzilla at digitalmars.com

--- Comment #7 from Walter Bright <bugzilla at digitalmars.com> ---
This covers 64 bit operations too: http://www.felixcloutier.com/x86/BT.html

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