[PATCH] D113778: [AMDGPU] Use shift for b64 mov

[Carl Ritson via Phabricator via llvm-commits]

critson added a comment.

For GFX10, I don't think this is worth doing unless V_LSHLREV_B64 is full rate.
2x V_MOV_B32 in VOP1 takes the same space as V_LSHLREV_B64 in VOP3.


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  https://reviews.llvm.org/D113778/new/

https://reviews.llvm.org/D113778