atanasyan added a comment.

In https://reviews.llvm.org/D36208#828853, @sdardis wrote:

> Currently there is no support in the backend for the interrupt attribute for 
> mips64 / using N32 & N64 abis, it will give a fatal error. Previously the 
> backend lacked support for the static relocation model which is an expected 
> requirement for interrupt handlers.
>
> microMIPS32r(3|6) is only supported for the O32 ABI, as microMIPS64R6 is 
> deprecated and going to be removed. There is no support for the published 
> microMIPS64R3 ISA.


I see. What is the better solution to handle unsupported attributes: a) 
silently ignore them; b) show a warning; c) show an error?


Repository:
  rL LLVM

https://reviews.llvm.org/D36208



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