I'm looking for ways to do some basic operations without using branches.

The key operation I want is a floored/round-to-negative-infinity integer

division (as opposed to the default round-to-zero).

```
7 floordiv 5 = 1
\-3 floordiv 5 = \-1
\-6 floordiv 5 = \-2
```

As I guess that doesn't exist, the operation can be constructed as:

(a/b) + (a>>31)

Assuming a is 32 bits. I can probably check the bit count, but perhaps

there's an op that does this already.

I'm also looking for a `sign(a) => (-1,0,1)` operation. Is there some

easy way to do this without branches? That is, have I overlooked from IR

function?