[llvm] [GlobalIsel] Visit ICmp (PR #105991)

[Matt Arsenault via llvm-commits]

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In-Reply-To: <llvm.org/llvm/llvm-project/pull/105991 at github.com>


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@@ -950,6 +950,30 @@ class GExtOrTruncOp : public GCastOp {
   };
 };
 
+/// Represents a splat vector.
+class GSplatVector : public GenericMachineInstr {
+public:
+  Register getValueReg() const { return getOperand(1).getReg(); }
+
+  static bool classof(const MachineInstr *MI) {
+    return MI->getOpcode() == TargetOpcode::G_SPLAT_VECTOR;
+  };
+};
+
+/// Represents an integer-like extending operation.
+class GZextOrSextOp : public GCastOp {
+public:
+  static bool classof(const MachineInstr *MI) {
+    switch (MI->getOpcode()) {
+    case TargetOpcode::G_SEXT:
+    case TargetOpcode::G_ZEXT:
+      return true;
+    default:
+      return false;
+    }
+  };
+};
+
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arsenm wrote:

Should extract the infrastructure bits out of this 

https://github.com/llvm/llvm-project/pull/105991