[PATCH] D54237: Constant folding and instcombine for saturating adds

[Nikita Popov via Phabricator via llvm-commits]

nikic updated this revision to Diff 173289.
nikic edited the summary of this revision.
nikic added a comment.

Add simplify for X + undef -> X.


https://reviews.llvm.org/D54237

Files:
  include/llvm/ADT/APInt.h
  lib/Analysis/ConstantFolding.cpp
  lib/Analysis/InstructionSimplify.cpp
  lib/Support/APInt.cpp
  lib/Transforms/InstCombine/InstCombineCalls.cpp
  test/Transforms/InstCombine/saturating-add.ll
  unittests/ADT/APIntTest.cpp

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