[llvm] [RISCV] Move RISCVInsertVSETVLI to after phi elimination (PR #91440)

[Philip Reames via llvm-commits]

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@@ -47,6 +47,14 @@ static cl::opt<bool> DisableInsertVSETVLPHIOpt(
 
 namespace {
 
+static VNInfo *getVNInfoFromReg(Register Reg, const MachineInstr &MI,
+                                const LiveIntervals *LIS) {
+  auto &LI = LIS->getInterval(Reg);
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preames wrote:

I think you're missing an assertion that Reg is virtual here.

https://github.com/llvm/llvm-project/pull/91440