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

[Philip Reames via llvm-commits]

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@@ -493,17 +501,17 @@ class VSETVLIInfo {
     assert(hasAVLImm());
     return AVLImm;
   }
-  const MachineInstr &getAVLDefMI() const {
-    assert(hasAVLReg() && AVLRegDef.DefMI);
-    return *AVLRegDef.DefMI;
+  const VNInfo *getAVLVNInfo() const {
+    assert(hasAVLReg());
+    return AVLRegDef.AVLVNInfo;
   }
 
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preames wrote:

Put some variant of that as a comment in code.  Ideally right next to the helper function.  :)

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