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

John McCall via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Tue Jul 9 10:13:14 PDT 2019


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





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