Implement codegen support for lowering "library builtins" like __builtin_isinf 
to their corresponding library routines (e.g. isinf).  This allows us to handle
all the stuff in macos math.h, and other stuff as it's added to *Builtins.def.

llvm-svn: 41634
4 files changed
tree: 70e3d1cec526c6e9451f65eff94be859c054c12c
  1. clang/
  2. llvm/