[PATCH] D46073: [DagCombine] De Morgan laws: 'nand' logic with an inverted operand

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri created this revision.
lebedev.ri added reviewers: spatel, craig.topper, RKSimon.
Herald added a reviewer: javed.absar.
lebedev.ri added a dependency: D46072: [DagCombine][InstCombine][NFC] De Morgan law tests.

As discussed in https://reviews.llvm.org/D46031, it seems we want to do this.
Depends on tests in https://reviews.llvm.org/D46072.


Repository:
  rL LLVM

https://reviews.llvm.org/D46073

Files:
  lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  test/CodeGen/AArch64/unfold-masked-merge-scalar-variablemask.ll
  test/CodeGen/MIR/Generic/demorgan-extra.ll
  test/CodeGen/MIR/Generic/demorgan.ll
  test/CodeGen/X86/unfold-masked-merge-scalar-variablemask.ll

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