[PATCH] D40755: [WIP][shrink-wrap]Sink COPYs to CSR from entry to successors

[Jun Bum Lim via Phabricator via llvm-commits]

junbuml updated this revision to Diff 126201.
junbuml added a comment.

Added MIR tests which should  show use cases of this patch better.
Again, this patch is preliminary, but I posted this to hear any early high level  feedback. Please let me know any thought.


https://reviews.llvm.org/D40755

Files:
  lib/CodeGen/ShrinkWrap.cpp
  test/CodeGen/AArch64/post-rs-copy-sink.mir
  test/CodeGen/AArch64/sink-copy-for-shrink-wrap.ll

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