[llvm] [AMDGPU][True16][CodeGen] select vgpr16 for asm inline 16bit vreg (PR #140946)

[Brox Chen via llvm-commits]

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+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=+real-true16 -verify-machineinstrs < %s 2>&1 | FileCheck -enable-var-scope -check-prefixes=GFX11 %s
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broxigarchen wrote:

The v_mov_b16 vs v_mov_b32 in asm

https://github.com/llvm/llvm-project/pull/140946