[cfe-dev] Is there an existed library in LLVM for generating LLVM IR from some format data?

[zhangxiongpang]

Hi, 

    I have a compiler front-end, and it generates a different IR* with LLVM IR. I want to use LLVM as my back-end, so perhaps I should translate IR* to LLVM IR. Is there an existed library in LLVM for generating LLVM IR from some format data? Or how does clang front-end generate the LLVM IR? Can anyone give me some suggestions or some relative article links? 

Thanks, 

-- Zhang Xiongpang
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