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

[Joe Nash via llvm-commits]

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@@ -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
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Sisyph wrote:

It looks like v_mov_b16 and v_swap_b16 need to have the UseRealTrue16Insts predicate applied to them. We don't want to select them unless passing the feature flag mattr=+real-true16.

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