setjmp () detection in RTL

[Kirill Yukhin]

Hi,
Could anybody pls advise, if I can detect that given RTL `call` is
actually a setjmp ()?

I see no references in dump...
(call_insn 6 5 7 (set (reg:SI 0 ax)
        (call (mem:QI (symbol_ref:DI ("_setjmp") [flags 0x41]
<function_decl 0x7f6ede1e0000 _setjmp>) [0 _setjmp S1 A8])
            (const_int 0 [0]))) 4.c:17 -1
     (expr_list:REG_SETJMP (const_int 0 [0])
        (expr_list:REG_EH_REGION (const_int 0 [0])
            (nil)))
    (expr_list:REG_FRAME_RELATED_EXPR (use (reg:DI 5 di))
        (nil)))

Thanks