[llvm-dev] [Tablegen] Error generating asm-writer

[Alex Bradley via llvm-dev]

Hi All,

I am new to llvm and trying to understand and use llvm tablegen for my
custom backend architecture. I am following the RISCV and AAP backend
patches to try writing code for my backend.

I am able to generate instr-info, callingconv, emitter with tablegen.
However, when trying to generate asm-writer for Instruction Printing
module, i am getting the following error:

'error:Could not find 'PATCHABLE_TAIL_CALL' instruction!'

Does this indicate that my target description .td files are missing
something? What exactly i am missing here?

Any pointers to resolve this issue would be a great help.

Regards,
Alex
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