[PATCH] D46072: [DagCombine][InstCombine][NFC] De Morgan law tests

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri created this revision.
lebedev.ri added reviewers: spatel, craig.topper, RKSimon, arphaman, MatzeB, thegameg.
lebedev.ri added a dependent revision: D46073: [DagCombine] De Morgan laws:  'nand' logic with an inverted operand.

As discussed in https://reviews.llvm.org/D46031, it seems DAGCombine should simplify using De Morgan laws.

`test/CodeGen/MIR/Generic/demorgan.ll` is a 100% carbon copy of `test/Transforms/InstCombine/demorgan.ll`.
`test/Transforms/InstCombine/demorgan-extra.ll` and `test/CodeGen/MIR/Generic/demorgan-extra.ll` are new and also 100% carbon copy

I think for DAGCombine we should be testing MIR output.
I *think* `test/CodeGen/MIR/Generic/` is the correct location given we stop after `machine-combiner` pass?


Repository:
  rL LLVM

https://reviews.llvm.org/D46072

Files:
  test/CodeGen/MIR/Generic/demorgan-extra.ll
  test/CodeGen/MIR/Generic/demorgan.ll
  test/Transforms/InstCombine/demorgan-extra.ll
  test/Transforms/InstCombine/demorgan.ll

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