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

[Gábor Spaits via llvm-commits]

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@@ -16,6 +16,559 @@
 ; Check that on RV32, i64 is passed in a pair of registers. Unlike
 ; the convention for varargs, this need not be an aligned pair.
 
+define i64 @callee_128i_in_regs_stack_fst(i64 %x1, i64 %x2, i64 %x3, i64 %x4, i128 %y ) {
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spaits wrote:

Added that argument.

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