[PATCH] D117814: [AMDGPU] Do not ignore exec use where exec is read as data

[Stanislav Mekhanoshin via Phabricator via llvm-commits]

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Compares, v_cndmask_b32, and v_readfirstlane_b32 use EXEC
in a way which modifies the result. This implicit EXEC use
shall not be ignored for the purposes of instruction moves.


https://reviews.llvm.org/D117814

Files:
  llvm/lib/Target/AMDGPU/SIInstrInfo.cpp
  llvm/test/CodeGen/AMDGPU/licm-valu.mir
  llvm/test/CodeGen/AMDGPU/mul24-pass-ordering.ll

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