[llvm] [GISel][RISCV]Implement indirect parameter passing (PR #95429)

[Gábor Spaits via llvm-commits]

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@@ -798,15 +857,19 @@ bool CallLowering::handleAssignments(ValueHandler &Handler,
         // store. We may need to adjust the offset for big endian targets.
         LLT MemTy = Handler.getStackValueStoreType(DL, VA, Flags);
 
-        MachinePointerInfo MPO;
+        MachinePointerInfo MPO(ArgReg);
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spaits wrote:

Should getStackAddress be used in every case or just for indirectPassing?  Originally this was just `MachinePointerInfo MPO;`.

https://github.com/llvm/llvm-project/pull/95429