[PATCH] D77459: [InstCombine] enhance freelyNegateValue() by handling 'not'

[Sanjay Patel via Phabricator via llvm-commits]

spatel added a comment.

Note that we don't see test diffs for simpler cases because we already handle this related pattern:

  // C - ~X == X + (1+C)
  if (match(Op1, m_Not(m_Value(X))))
    return BinaryOperator::CreateAdd(X, AddOne(C));


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D77459/new/

https://reviews.llvm.org/D77459