[Issue 17436] Weird `cast(double) i != cast(double) i` on 32-bit hosts

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=17436

--- Comment #2 from kinke <kinke at gmx.net> ---
[The generated code uses the ucomisd instruction, which is SSE2, so using
cvtsi2sd (SSE2) and avoiding the x87 should be feasible.]

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