[PATCH] D13994: Optimization for pow(x, n) where n is some constant

[Joerg Sonnenberger via llvm-commits]

joerg added a comment.

Somewhat unrelated side note, for fast math -0.5 (generally) and +/- 1/3 (for targets with cbrt) are likely also useful to consider.


http://reviews.llvm.org/D13994