[AIE2] AIE2 custom shuffle vector mask support

Author: ValentijnvdBeek

llvm/lib/Target/AIE/AIE2PreLegalizerCombiner.cpp

@@ -15,6 +15,7 @@
 
 #include "AIE2TargetMachine.h"
 #include "AIECombinerHelper.h"
+#include "MCTargetDesc/AIE2MCTargetDesc.h"
 #include "llvm/CodeGen/GlobalISel/CSEInfo.h"
 #include "llvm/CodeGen/GlobalISel/Combiner.h"
 #include "llvm/CodeGen/GlobalISel/CombinerHelper.h"
@@ -57,6 +58,7 @@ class AIE2PreLegalizerCombinerImpl : public Combiner {
   static const char *getName() { return "AIE2PreLegalizerCombiner"; }
   bool tryCombineAll(MachineInstr &I) const override;
   bool tryCombineAllImpl(MachineInstr &I) const;
+  bool tryCombineShuffleVector(MachineInstr &MI) const;
 
 private:
 #define GET_GICOMBINER_CLASS_MEMBERS
@@ -84,14 +86,21 @@ AIE2PreLegalizerCombinerImpl::AIE2PreLegalizerCombinerImpl(
 {
 }
 
+bool AIE2PreLegalizerCombinerImpl::tryCombineShuffleVector(
+    MachineInstr &MI) const {
+  if (Helper.tryCombineShuffleVector(MI))
+    return true;
+
+  return false;
+}
 bool AIE2PreLegalizerCombinerImpl::tryCombineAll(MachineInstr &MI) const {
   if (tryCombineAllImpl(MI))
     return true;
 
   unsigned Opc = MI.getOpcode();
   switch (Opc) {
   case TargetOpcode::G_SHUFFLE_VECTOR:
-    return Helper.tryCombineShuffleVector(MI);
+    return tryCombineShuffleVector(MI);
   }
   return false;
 }