[llvm] [AMDGPU][True16][MC] Support v_swap_b16. (PR #100442)

[Brox Chen via llvm-commits]

================
@@ -0,0 +1,39 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -march=amdgcn -mcpu=gfx1100 -verify-machineinstrs < %s | FileCheck -check-prefixes=GFX11 %s
----------------
broxigarchen wrote:

I will merge GFX12 v_swap_b16 mc change later in another patch

https://github.com/llvm/llvm-project/pull/100442