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

[Artur Pilipenko via llvm-commits]

apilipenko updated this revision to Diff 38186.
apilipenko added a comment.

Added tests, implemented correct combining of dereferenceable 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
  test/Transforms/InstCombine/load-combine-metadata-2.ll
  test/Transforms/InstCombine/load-combine-metadata-3.ll
  test/Transforms/InstCombine/load-combine-metadata-4.ll
  test/Transforms/InstCombine/loadstore-metadata.ll
  test/Transforms/InstCombine/phi-load-metadata-2.ll
  test/Transforms/InstCombine/phi-load-metadata-3.ll
  test/Transforms/InstCombine/phi-load-metadata.ll
  test/Transforms/SimplifyCFG/preserve-load-metadata-2.ll
  test/Transforms/SimplifyCFG/preserve-load-metadata-3.ll
  test/Transforms/SimplifyCFG/preserve-load-metadata.ll

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