[clang] [llvm] [RISCV] Inline Assembly Support for GPR Pairs ('Pr') (PR #112983)

[Sam Elliott via cfe-commits]

lenary wrote:

Gentle Ping. I'm looking for answers to two questions:

- [Should I] prepare a fixup commit that [uses `MVT::Untyped`] (and removes the `riscv_*_pair` MVTs), if we think that's a better target-independent approach?

- Any advice on whether I should be digging deeply into changing SelectionDAGBuilder.cpp (affecting all targets) so we don't need the `getNumRegisters` override? The options here IMO are a) live with the override, b) change SelectionDAGBuilder now, c) change SelectionDAGBuilder in a follow-up and remove the override once it is not needed.



https://github.com/llvm/llvm-project/pull/112983