[PATCH] D37628: Cleanup: Merge isKnownNonNull into isKnownNonZero

[Nuno Lopes via Phabricator via llvm-commits]

nlopes created this revision.

This patch just copies the relevant bits from isKnownNonNull into isKnownNonZero and replaces all uses of isKnownNonNull with isKnownNonZero.

As a bonus, this patch fixes a bug that made isKnownNonNull consider that alloca always returns a non-null ptr with address space != 0.


Repository:
  rL LLVM

https://reviews.llvm.org/D37628

Files:
  include/llvm/Analysis/ValueTracking.h
  lib/Analysis/InstructionSimplify.cpp
  lib/Analysis/LazyValueInfo.cpp
  lib/Analysis/Loads.cpp
  lib/Analysis/ValueTracking.cpp
  lib/Transforms/IPO/FunctionAttrs.cpp
  lib/Transforms/InstCombine/InstCombineCalls.cpp
  lib/Transforms/Utils/PromoteMemoryToRegister.cpp
  test/Other/cgscc-libcall-update.ll
  test/Transforms/FunctionAttrs/nonnull.ll
  test/Transforms/InstCombine/lifetime.ll
  test/Transforms/InstCombine/memcpy-addrspace.ll
  test/Transforms/InstCombine/memcpy-from-global.ll
  test/Transforms/InstCombine/strcpy_chk-64.ll
  test/Transforms/InstCombine/strlen-1.ll
  test/Transforms/InstCombine/wcslen-1.ll
  test/Transforms/InstCombine/wcslen-3.ll
  tools/clang/lib/CodeGen/CGCall.cpp
  tools/clang/test/CodeGenCXX/microsoft-abi-dynamic-cast.cpp

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