[PATCH] D37362: [Polly][ZoneAlgo] Handle non-StoreInst/LoadInst MemoryAccesses including memset.

[Michael Kruse via Phabricator via llvm-commits]

Meinersbur created this revision.
Herald added a reviewer: bollu.

Up to no ZoneAlgo considered array elements access by something else than a LoadInst or StoreInst as not analyzable. This patch removes that restriction by using the unknown ValInst to describe the written content, repectively the element type's null value in case of memseet.


https://reviews.llvm.org/D37362

Files:
  include/polly/ZoneAlgo.h
  lib/Transform/ZoneAlgo.cpp
  test/DeLICM/map_memset_zero.ll
  test/DeLICM/reject_unusualstore.ll
  test/ForwardOpTree/forward_load_memset_after.ll
  test/ForwardOpTree/forward_load_memset_before.ll

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