[llvm] [TableGen, CodeGen, CHERI] Add support for the cPTR wildcard value type. (PR #158426)

[Owen Anderson via llvm-commits]

resistor wrote:

I just verified that `X86GenDAGISel.inc` is the same before and after this commit (at least on my machine), which seemed like the most likely way an unintended compile time change could have snuck in...

https://github.com/llvm/llvm-project/pull/158426