[all-commits] [llvm/llvm-project] b4466b: [Test] Add some tests showing missing opportunitie...

[Max Kazantsev via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b4466bcd68d6556906e8076a4a170f90bb6e238c
      https://github.com/llvm/llvm-project/commit/b4466bcd68d6556906e8076a4a170f90bb6e238c
  Author: Max Kazantsev <mkazantsev at azul.com>
  Date:   2022-07-07 (Thu, 07 Jul 2022)

  Changed paths:
    A llvm/test/Transforms/IndVarSimplify/cycled_phis.ll

  Log Message:
  -----------
  [Test] Add some tests showing missing opportunities in IndVars

The general idea of these tests is elimination of signed and unsigned
comparison of the same values through proving non-negativity of them.
Here are some examples where SCEV is not smart enough to prove it.