[PATCH] D108353: [loop-idiom] Support memcpy instructions for memmove-like loops

[Han Zhu via Phabricator via llvm-commits]

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Following https://reviews.llvm.org/D104464. In addition to load and store
instructions, also handle memcpy intrinsics in loop body. The constraints are
same as before (same base pointer, etc.).

Fixed the FIXME added in D104464 <https://reviews.llvm.org/D104464>, and added two more tests.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D108353

Files:
  llvm/lib/Transforms/Scalar/LoopIdiomRecognize.cpp
  llvm/test/Transforms/LoopIdiom/basic.ll
  llvm/test/Transforms/LoopIdiom/memcpy-intrinsic.ll

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