1. [RFC][Target] Add a new triple called Triple::csky (details)
Commit b21ddded8f04fee925bbf9e6458347104b5b99eb by zixuan.wu
[RFC][Target] Add a new triple called Triple::csky

Before upstream a new target called CSKY, make a new triple of that called Triple::csky.
For now, it's a 32-bit little endian target and the detail can be referred at D86269.

This is the split part of D86269, which add a new target called CSKY.

Differential Revision:
The file was modifiedllvm/lib/Support/Triple.cpp (diff)
The file was modifiedllvm/include/llvm/ADT/Triple.h (diff)
The file was modifiedllvm/unittests/ADT/TripleTest.cpp (diff)