[PATCH] D13953: Preserve load alignment and dereferenceable metadata during some transformations

[Artur Pilipenko via llvm-commits]

apilipenko created this revision.
apilipenko added reviewers: hfinkel, reames.
apilipenko added a subscriber: llvm-commits.

Preserve new !align, !dereferenceable, !dereferenceable_or_null load metadata everywhere we preserve !nonnull metadata.

http://reviews.llvm.org/D13953

Files:
  include/llvm/IR/Metadata.h
  lib/IR/Metadata.cpp
  lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp
  lib/Transforms/InstCombine/InstCombinePHI.cpp
  lib/Transforms/Utils/Local.cpp
  lib/Transforms/Utils/SimplifyCFG.cpp

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