[PATCH] D45535: [DSE] Teach the pass that atomic memory intrinsics are stores.

[Daniel Neilson via Phabricator via llvm-commits]

dneilson created this revision.
dneilson added reviewers: mkazantsev, skatkov, apilipenko, efriedma, rsmith.

This change teaches DSE that the atomic memory intrinsics are stores
that can be eliminated, and can allow other stores to be eliminated.
This change specifically does not teach DSE that these intrinsics
can be partially eliminated (i.e. length reduced, and dest/src changed);
that will be handled in another change.


Repository:
  rL LLVM

https://reviews.llvm.org/D45535

Files:
  include/llvm/Analysis/MemoryLocation.h
  lib/Analysis/MemoryLocation.cpp
  lib/Transforms/Scalar/DeadStoreElimination.cpp
  test/Transforms/DeadStoreElimination/memintrinsics.ll
  test/Transforms/DeadStoreElimination/simple.ll

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