[PATCH] D27114: Preserve nonnull metadata on Loads through SROA & mem2reg.

[Luqman Aden via llvm-commits]

luqmana created this revision.
luqmana added a reviewer: chandlerc.
luqmana added a subscriber: llvm-commits.

https://llvm.org/bugs/show_bug.cgi?id=31142 :

SROA was dropping the nonnull metadata on loads from allocas that got optimized out. This patch simply preserves nonnull metadata on loads through SROA and mem2reg.


https://reviews.llvm.org/D27114

Files:
  lib/Transforms/Scalar/SROA.cpp
  lib/Transforms/Utils/PromoteMemoryToRegister.cpp
  test/Transforms/SROA/preserve-nonnull.ll

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