[PATCH] D54956: [ValueTracking] Look through casts when determining non-nullness

[Johannes Doerfert via Phabricator via llvm-commits]

jdoerfert updated this revision to Diff 175572.
jdoerfert marked 3 inline comments as done.
jdoerfert added a comment.

Ensure no-op or extension casts and add appropriate tests. Also fix an error in LazyValueInfo which looked through AddrSpaceCast to determine non-nullness.


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D54956/new/

https://reviews.llvm.org/D54956

Files:
  lib/Analysis/LazyValueInfo.cpp
  lib/Analysis/ValueTracking.cpp
  test/Transforms/InstCombine/alloca-cast-debuginfo.ll
  test/Transforms/InstCombine/callsite_nonnull_args_through_casts.ll
  test/Transforms/InstCombine/memcpy-from-global.ll
  test/Transforms/InstCombine/objsize.ll
  test/Transforms/InstCombine/select.ll
  test/Transforms/LoopVectorize/X86/gather_scatter.ll
  test/Transforms/LoopVectorize/X86/masked_load_store.ll
  test/Transforms/MemCpyOpt/memcpy-to-memset-with-lifetimes.ll

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