[Issue 11289] Better compilation of code using std.typecons.NullableRef

[d-bugmail at puremagic.com]

https://d.puremagic.com/issues/show_bug.cgi?id=11289


Stanislav Blinov <stanislav.blinov at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |stanislav.blinov at gmail.com


--- Comment #3 from Stanislav Blinov <stanislav.blinov at gmail.com> 2014-01-29 04:32:01 PST ---
> I don't know the cause of the lower performance of the second version. Perhaps
> those extra mov instructions are caused by a higher reister pressure.

It would seem those extra mov instructions are due to "alias this" in
NullableRef's implementation. Thus it's more of an optimizer issue: current
ldc, for example, generates identical code for both versions.

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