[llvm] [SelectionDAG] Use uintptr_t for ResNo in SDValue. (PR #104660)

[Craig Topper via llvm-commits]

topperc wrote:

> Is this beneficial because it allows copying SDValue using 16 byte load/store?

That's some of it. It may also help recognizing memset to initialize them.

https://github.com/llvm/llvm-project/pull/104660