[Issue 18461] core.bitop.bt returns garbage in release code

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18461

--- Comment #2 from Seb <greensunny12 at gmail.com> ---
I wonder whether this has something to do with DUB (probably not).

1) Can you reproduce the same with just running DMD? (I couldn't on my machine)


---
dmd -release -run - <<EOF
import core.bitop;

void main()
{
    size_t test_val = 0b0001_0000;  

    if(bt(&test_val, 4) != 0)
        assert(false);
}
EOF
---

2) Did you check whether it's maybe something with your standard library?
A simple check would be to try including core.bitop.bt in your file:

https://github.com/dlang/druntime/blob/master/src/core/bitop.d#L270

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