I have some newly defined intrinsic functions in my llvm IR code, which I want to translate to X86 instruction set. As a first step, I want to be able to generate "nop" for these instructions, so the program at least compiles successfully.
The call to my intrinsic function looks like this in the IR:
call void @llvm.X(i16 %43)
From what I understand it may be possible to pattern match this to the nop instructions in the backend. I did not find an example of intrinsic function translation in the X86 backend. Could you explain how this can be done, or point me to some places to look?