[PATCH] D14302: [SimplifyLibCalls] Add a new transform: tan(atan(x)) -> x

[Steve Canon via llvm-commits]

scanon added a comment.

I'd like to see this made generic so it applies to any 1-to-1 libm function whose inverse is available, since the same pattern applies for  logN(expN(x)), asinh(sinh(x)), atanh(tanh(x)), etc ...


http://reviews.llvm.org/D14302