[PATCH] D64128: [CodeGen] Generate llvm.ptrmask instead of inttoptr(and(ptrtoint, C)) if possible.

[John McCall via Phabricator via llvm-commits]

rjmccall added a comment.

I wouldn't favor adding something really obscure that was only useful for clang, but I think builtins to set and clear mask bits while promising to preserve object-reference identity would be more generally useful for libraries.  For example, there might be somewhere in libc++ that could take advantage of this.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D64128/new/

https://reviews.llvm.org/D64128