{"ast_node_type":"other","tokens":[{"end":91,"kind":"keyword","start":0,"text":"SpirV(SpirVInlineAsmRegClass::reg)"}]}
        SpirV(SpirVInlineAsmRegClass::reg) => bug!("LLVM backend does not support SPIR-V"),
        Msp430(_) => None,
        M68k(_) => None,