[llvm] [PowerPC] Implement vector unpack instructions (PR #151004)

[zhijian lin via llvm-commits]

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@@ -45,6 +45,67 @@ multiclass XOForm_RTAB5_L1r<bits<6> opcode, bits<9> xo, dag OOL, dag IOL,
   }
 }
 
+class VXForm_VRTB5<bits<11> xo, bits<5> R, dag OOL, dag IOL, string asmstr,
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diggerlin wrote:

no opcode(4) in the definition in the class. ?

https://github.com/llvm/llvm-project/pull/151004