[PATCH] D26739: [MemCpyOpt] Port to MemorySSA. Disabled by default.

[bryant via llvm-commits]

bryant added a comment.

Forgot to mention that this depends on:

- The upward `AccessList` splice defined in https://reviews.llvm.org/D26661 and used by `moveUp`,
- https://reviews.llvm.org/D26631 (NFC), which sets up the FileChecks for the legacy MemCpyOpt, and
- the `instructionClobbersQuery` patch at https://reviews.llvm.org/D26659 in order to get the right clobbers for either source of dest memcpy locs.


Repository:
  rL LLVM

https://reviews.llvm.org/D26739