[llvm] [CodeGen] Utilizing register units based liveIns tracking in MBB (PR #129847)

[Vikash Gupta via llvm-commits]

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@@ -158,6 +159,7 @@ class MachineBasicBlock
 
   MachineFunction *xParent;
   Instructions Insts;
+  const TargetRegisterInfo *TRI;
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vg0204 wrote:

But it's need be used repeatedly while regunits are in question! So would it be good calling it everytime from MF

https://github.com/llvm/llvm-project/pull/129847