(no subject)

[pozorvlak]

I have just written the following commit message:
"Branch over unconditional jump" hack for arbitrary-length brcc.

- brcc (branch and compare) instructions can have static branch-prediction
hints, but can only jump a limited distance.
- Calculating the distance of a jump at expand-time is hard.
- So instead of emitting just a brcc instruction, we emit an unconditional
jump to the same place and a branch over it.
- I added a simple counter to emit/state to number the labels thus introduced.
- With this commit, I forfeit all right to criticise the hackiness of anyone
else's code.
- Though I doubt that will stop me.