[llvm] [AArch64][SME] Introduce CHECK_MATCHING_VL pseudo for streaming transitions (PR #157510)

[Benjamin Maxwell via llvm-commits]

================
@@ -2940,6 +2940,52 @@ AArch64TargetLowering::EmitDynamicProbedAlloc(MachineInstr &MI,
   return NextInst->getParent();
 }
 
+MachineBasicBlock *
+AArch64TargetLowering::EmitCheckVL(MachineInstr &MI,
----------------
MacDue wrote:

nit: Match the pseudo name
```suggestion
AArch64TargetLowering::EmitCheckMatchingVL(MachineInstr &MI,
```

https://github.com/llvm/llvm-project/pull/157510