[PATCH] D48005: [NFC][AMDGPU] Add tests for all the various IR patterns equivalent to extracting low bits.

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri created this revision.
lebedev.ri added reviewers: mareko, bogner, rampitec, arsenm, tstellar.
lebedev.ri added a project: AMDGPU.
Herald added subscribers: t-tye, tpr, dstuttard, yaxunl, nhaehnle, wdng, kzhuravl.

The idiom recognition seems rather poor.
Only the `@bzhi32_d0` produces `v_bfe_u32`.
But they all should.

This needs to be fixed before https://reviews.llvm.org/D47980 can be re-landed.


Repository:
  rL LLVM

https://reviews.llvm.org/D48005

Files:
  test/CodeGen/AMDGPU/extract-lowbits.ll

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