[PATCH] D46660: [InstCombine] Handle atomic memset in the same way as regular memset

[Daniel Neilson via Phabricator via llvm-commits]

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

This change adds handling of the atomic memset intrinsic to the
code path that simplifies the regular memset. In practice this means
that we will now also expand a small constant-length atomic memset
into a single unordered atomic store.


Repository:
  rL LLVM

https://reviews.llvm.org/D46660

Files:
  lib/Transforms/InstCombine/InstCombineCalls.cpp
  lib/Transforms/InstCombine/InstCombineInternal.h
  test/Transforms/InstCombine/element-atomic-memintrins.ll

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