[all-commits] [llvm/llvm-project] 75b6a4: [AArch64][GlobalISel] Lower G_CTLZ_ZERO_UNDEF.

[Amara Emerson via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 75b6a47bd08292c4887b163831536f877ae9e5a6
      https://github.com/llvm/llvm-project/commit/75b6a47bd08292c4887b163831536f877ae9e5a6
  Author: Amara Emerson <amara at apple.com>
  Date:   2021-03-23 (Tue, 23 Mar 2021)

  Changed paths:
    M llvm/lib/Target/AArch64/GISel/AArch64LegalizerInfo.cpp
    A llvm/test/CodeGen/AArch64/GlobalISel/legalize-ctlz.mir
    M llvm/test/CodeGen/AArch64/GlobalISel/legalizer-info-validation.mir
    M llvm/test/CodeGen/AArch64/GlobalISel/select-ctlz.mir
    M llvm/test/CodeGen/AArch64/arm64-clrsb.ll

  Log Message:
  -----------
  [AArch64][GlobalISel] Lower G_CTLZ_ZERO_UNDEF.

This adds some missing legalizer tests, which uncovered a v2s64 selection
test that wasn't working since there's no legalization or instruction for that.