[PATCH] D13021: [DeadStoreElimination] Remove dead zero store to calloc initialized memory

[Igor Laevsky via llvm-commits]

igor-laevsky created this revision.
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This change allows dead store elimination to remove zero and null stores into memory freshly allocated with calloc-like function.

Philip, this is variation of your old change (http://reviews.llvm.org/D3942). Hopefully all issues with msan should be fixed.

Repository:
  rL LLVM

http://reviews.llvm.org/D13021

Files:
  lib/Transforms/Scalar/DeadStoreElimination.cpp
  test/Transforms/DeadStoreElimination/calloc-store.ll

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