[PATCH] D15903: Improve load/store to memcpy for aggregate

[Amaury SECHET via llvm-commits]

deadalnix created this revision.
deadalnix added reviewers: craig.topper, spatel, dexonsmith, Prazek, chandlerc, joker.eph.
deadalnix added a subscriber: llvm-commits.

It turns out that if we don't try to do it at the store location, we can do it before any operation that alias the load, as long as no operation alias the store.

http://reviews.llvm.org/D15903

Files:
  lib/Transforms/Scalar/MemCpyOptimizer.cpp
  test/Transforms/MemCpyOpt/fca2memcpy.ll

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