[llvm] [MachineVerifier] Improve checks for G_INSERT_SUBVECTOR. (PR #109209)

[Michael Maitland via llvm-commits]

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@@ -1710,41 +1710,51 @@ void MachineVerifier::verifyPreISelGenericInstruction(const MachineInstr *MI) {
     }
 
     LLT DstTy = MRI->getType(MI->getOperand(0).getReg());
-    LLT Src0Ty = MRI->getType(Src0Op.getReg());
     LLT Src1Ty = MRI->getType(Src1Op.getReg());
 
     if (!DstTy.isVector()) {
       report("Destination type must be a vector", MI);
       break;
     }
 
-    if (!Src0Ty.isVector()) {
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michaelmaitland wrote:

Is it okay to remove this check?

https://github.com/llvm/llvm-project/pull/109209