[Patch ifcvt costs 0/3] Introduce a new target hook for ifcvt costs.

[Mike Stump]

On Sep 30, 2015, at 1:04 AM, Richard Biener <richard.guenther@gmail.com> wrote:
> So what about a branch_cost hook that takes taken/not-taken probabilities as argument?

So, for my port, I need to know %prediction as well to calculate cost.  I know, kinda sucks.  Or put another way, I want to explain the cost taken, predicted, not-taken, predicted, taken, mis-predicted, and not-taken-mis-predicted and let the caller sort out if the branch will be predicted or mis-predicted, as it can do the math itself and that math is target independent.