[PATCH] D34729: [AMDGPU] Add pattern for v_alignbit_b32 with immediate

[Stanislav Mekhanoshin via Phabricator via llvm-commits]

rampitec created this revision.
Herald added subscribers: t-tye, tpr, dstuttard, yaxunl, nhaehnle, wdng, kzhuravl.

If immediate in shift is less than 32 we can use alignbit too.

Diff is based on https://reviews.llvm.org/D34723.


https://reviews.llvm.org/D34729

Files:
  lib/Target/AMDGPU/SIInstrInfo.td
  lib/Target/AMDGPU/SIInstructions.td
  test/CodeGen/AMDGPU/alignbit-pat.ll
  test/CodeGen/AMDGPU/cgp-bitfield-extract.ll
  test/CodeGen/AMDGPU/shift-and-i64-ubfe.ll

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