According to Wikipedia Apple hired Chris Lattner, one of the original authors of LLVM, in 2005. (https://en.wikipedia.org/wiki/LLVM https://en.wikipedia.org/wik

According to Wikipedia Apple hired Chris Lattner, one of the original authors of LLVM, in 2005. (https://en.wikipedia.org/wiki/LLVM https://en.wikipedia.org/wiki/LLVM) So they don't own it, but they do employ some of the most knowledgeable developers of the project. They almost certainly have control over the direction it takes, and could easily develop features behind closed doors.