[llvm] [RISCV] Minimally modify incoming state in transferBefore (PR #72352)

[Luke Lau via llvm-commits]

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@@ -1025,9 +1027,13 @@ bool RISCVInsertVSETVLI::needVSETVLI(const MachineInstr &MI,
   return true;
 }
 
-// Given an incoming state reaching MI, modifies that state so that it is minimally
-// compatible with MI.  The resulting state is guaranteed to be semantically legal
-// for MI, but may not be the state requested by MI.
+static VSETVLIInfo adjustIncoming(VSETVLIInfo PrevInfo, VSETVLIInfo NewInfo,
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lukel97 wrote:

This forward definition is solely to improve the diff

https://github.com/llvm/llvm-project/pull/72352