[PATCH] D136413: [Clang][LoongArch] Define more LoongArch specific built-in macros

[Youling Tang via Phabricator via cfe-commits]

tangyouling added a comment.

Do we need to add the definition of the `__loongarch64` macro? gcc has that definition (but it is not recommended to use it, just for compatibility with previous code).
It has been used in some projects before, such as linux kernel, libunwind etc.


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https://reviews.llvm.org/D136413