[llvm-dev] The doubt to LLVM.org-How to add the new type?

[To be a better me via llvm-dev]

Dear Mr. :

So far, I still have two questions. The first is: I am not clear the LLVM / CLANG operating mechanism .can you send me some relevant information? The second is: I am using the compiler environment is LLVM and CLANG. The official description of the CLANG is equivalent to the front, like lexical analysis and parsing. LLVM is equivalent to the back-end, mainly intermediate code generation and optimization. I now want to add a recognition to new type , should be in the LLVM or the CLANG to add the relevant code?
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