This changeset adds the required Builtins for enabling AArch64 vectorization of libm trigonometry functions via SLEEF: http://sleef.org/.
- A new argument is added to -fveclib=<X>: SLEEF.
- A number of Builtins that were previously unimplemented are now enabled.
This changeset depends on https://reviews.llvm.org/D53927.
List of SLEEF vectorized trigonometry functions: