[llvm] [AMDGPU][True16][MC] true16 for v_alignbit_b32 (PR #119409)

[Ivan Kosarev via llvm-commits]

================
@@ -449,6 +449,9 @@ v_alignbit_b32 v5, src_scc, vcc_lo, -1
 v_alignbit_b32 v255, 0xaf123456, vcc_hi, null
 // GFX11: v_alignbit_b32 v255, 0xaf123456, vcc_hi, null ; encoding: [0xff,0x00,0x16,0xd6,0xff,0xd6,0xf0,0x01,0x56,0x34,0x12,0xaf]
 
+v_alignbit_b32 v5, vcc_hi, 0xaf123456, v255.h
+// GFX11: [0x05,0x20,0x16,0xd6,0x6b,0xfe,0xfd,0x07,0x56,0x34,0x12,0xaf]
----------------
kosarev wrote:

Why is there no `encoding:` part for this case?

https://github.com/llvm/llvm-project/pull/119409