[PATCH] D91202: [AMDGPU] Set default op_sel_hi on accvgpr read/write

[Stanislav Mekhanoshin via Phabricator via llvm-commits]

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These are opsel opcodes with op_sel actually being ignored.
As a such op_sel_hi needs to be set to default 1 even though
these bits are ignored. This is compatibility change.


https://reviews.llvm.org/D91202

Files:
  llvm/lib/Target/AMDGPU/VOP3PInstructions.td
  llvm/test/MC/AMDGPU/accvgpr-altnames.s
  llvm/test/MC/AMDGPU/mai.s
  llvm/test/MC/Disassembler/AMDGPU/mai.txt

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