Custom backend

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#1

Hello,

Currently I am developing a custom LLVM backend for HLS synthesis and design space exploration. The backend is supposed to change dynamically depending on the designer input, and re-linking llc every time there is a design change will drastically affect DSE time.

I have been stuck for some days while trying to load the generated shared library into llc without having to add the custom target into LLVM configure files. I know this was possible in previous releases, and was wondering if it is still possible in release 3.1 and I am doing something wrong.

Best Regards,

#2

I have been stuck for some days while trying to load the generated
shared library into llc without having to add the custom target into
LLVM configure files. I know this was possible in previous releases, and
was wondering if it is still possible in release 3.1 and I am doing
something wrong.

This is not possible for many releases already. In order to use custom backend
you have to register it at configure time. Maybe you should somehow
try to tune your workflow? E.g. use gold on Linux as linker?