[llvm] [RISCV][GlobalISel] Vector Extension vadd Legalizer (PR #71400)

[Michael Maitland via llvm-commits]

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@@ -1966,6 +1969,11 @@ void MachineVerifier::visitMachineInstrBefore(const MachineInstr *MI) {
     if (SrcReg.isVirtual() && DstReg.isPhysical() && SrcSize.isScalable() &&
         !DstSize.isScalable())
       break;
+    // If the Src is scalable and the Dst is fixed, then Dest can only hold
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michaelmaitland wrote:

You can rebase on main to pick up this commit. 

https://github.com/llvm/llvm-project/pull/71400