[PATCH] D34566: [loop idiom Recognition] support memcpy for multiple consecutive loads and stores

DIVYA SHANMUGHAN via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu Jul 6 14:56:25 PDT 2017


DIVYA updated this revision to Diff 105544.
DIVYA added a comment.

- If there are multiple stores and loads ,which are consecutive, but if any of them is atomic , then it won't be converted to memcpy.
- isAtomicStoreLoad flag checks for any atomic store or load, when there are multiple stores and  loads .
- If there is single store and load , then it will converted to memcpy or atomic memcpy depending on whether the store and load are atomic or not.




https://reviews.llvm.org/D34566

Files:
  lib/Transforms/Scalar/LoopIdiomRecognize.cpp
  test/Transforms/LoopIdiom/memcpy_struct_pattern.ll

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