Eliminate PromoteMemoryToRegisterID; just use addPreserved("mem2reg")
instead, as an example of what this looks like.

llvm-svn: 110478
5 files changed
tree: 8b10b820184c792405ba93796993e6290ab5b543
  1. clang/
  2. compiler-rt/
  3. libcxx/
  4. lldb/
  5. llvm/