llvm dev - Aug 2021 - Questions for extending llvm back-end instruction

Dear llvm developers :


I am doing a project about GPU,

and need to add a new instruction to the generated PTX file by llvm
back-end,

this instruction should be able to specifically manipulate(load) the
constant variables.

My question is,

I am not sure if there are any existing llvm elements that could archive my
requirements,

since according to your documentation,

adding a new instruction to llvm is very time consuming.


Thanks a lot for your help
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