[PATCH] D57541: [DAGCombiner] Eliminate dead stores to stack.

[Clement Courbet via Phabricator via llvm-commits]

courbet updated this revision to Diff 185716.
courbet marked 4 inline comments as done.
courbet added a comment.

- search dead stores through non-aliasing `LIFETIME_START`s
- Better comments.


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D57541/new/

https://reviews.llvm.org/D57541

Files:
  include/llvm/CodeGen/SelectionDAG.h
  include/llvm/CodeGen/SelectionDAGAddressAnalysis.h
  include/llvm/CodeGen/SelectionDAGNodes.h
  lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  lib/CodeGen/SelectionDAG/SelectionDAG.cpp
  lib/CodeGen/SelectionDAG/SelectionDAGAddressAnalysis.cpp
  lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
  test/CodeGen/BPF/remove_truncate_5.ll
  test/CodeGen/X86/swap.ll
  test/DebugInfo/COFF/inlining.ll
  test/DebugInfo/COFF/lexicalblock.ll

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