[PATCH] D73757: [DSE] Track overlapping stores.

[Florian Hahn via Phabricator via llvm-commits]

fhahn created this revision.
fhahn added reviewers: dmgreen, bryant, asbirlea, Tyker.
Herald added a subscriber: hiraditya.
Herald added a project: LLVM.

Add a map from BasicBlocks to overlap intervals. For partial writes, we
can keep track of those in IOLs. We only add candidates that are valid

  for eliminations.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D73757

Files:
  llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
  llvm/test/Transforms/DeadStoreElimination/MSSA/OverwriteStoreBegin.ll
  llvm/test/Transforms/DeadStoreElimination/MSSA/OverwriteStoreEnd.ll
  llvm/test/Transforms/DeadStoreElimination/MSSA/memset-missing-debugloc.ll
  llvm/test/Transforms/DeadStoreElimination/MSSA/multiblock-loops.ll
  llvm/test/Transforms/DeadStoreElimination/MSSA/multiblock-memintrinsics.ll
  llvm/test/Transforms/DeadStoreElimination/MSSA/multiblock-overlap.ll

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D73757.241620.patch
Type: text/x-patch
Size: 11505 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20200131/f711429b/attachment.bin>