[PATCH] D54545: AMDGPU: Fix V_FMA_F16 selection on GFX9

[Konstantin Zhuravlyov via Phabricator via llvm-commits]

kzhuravl added a comment.

In https://reviews.llvm.org/D54545#1299055, @arsenm wrote:

> Is this the one that zeros the high bits vs. leaves them intact?


Did you mean?

  If op_sel[3] is 0 Result is written to 16 LSBs of destination VGPR and hi 16 bits are preserved.
  If op_sel[3] is 1 Result is written to 16 MSBs of destination VGPR and lo 16 bits are preserved.


Repository:
  rL LLVM

https://reviews.llvm.org/D54545