Revert "Revert "Invariant start/end intrinsics overloaded for address space""

This reverts commit 32fc6488e48eafc0ca1bac1bd9cbf0008224d530.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278609 91177308-0d34-0410-b5e6-96231b3b80d8
9 files changed