[llvm] [AArch64] Full reverse shuffles. (PR #119083)

[Thorsten Schütt via llvm-commits]

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@@ -405,6 +405,28 @@ void applyEXT(MachineInstr &MI, ShuffleVectorPseudo &MatchInfo) {
   MI.eraseFromParent();
 }
 
+bool matchFullRev(MachineInstr &MI, MachineRegisterInfo &MRI) {
+  assert(MI.getOpcode() == TargetOpcode::G_SHUFFLE_VECTOR);
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tschuett wrote:

`GShuffleVector *Shuffle = cast<GShuffleVector>(&MI);`

https://github.com/llvm/llvm-project/pull/119083