gcc/testsuite/selftests/x86_64/call-insn.rtl

(function "test"
  (insn-chain
    (block 2
      (edge-from entry (flags "FALLTHRU"))
      (ccall_insn/j 1
        (set (reg:DF xmm0)
             (call (mem:QI (symbol_ref:DI ("sqrt") [flags 0x41]  <function_decl 0x7f82b1429d00 sqrt>) [0 __builtin_sqrt S1 A8])
                    (const_int 0))) "test.c":19
        (expr_list:REG_CALL_DECL (symbol_ref:DI ("sqrt") [flags 0x41]  <function_decl 0x7f82b1429d00 sqrt>)
           (expr_list:REG_EH_REGION (const_int 0)
              (nil)))
        (expr_list:DF (use (reg:DF xmm0))
           (nil)))
      (edge-to exit (flags "FALLTHRU"))
    ) ;; block 2
  ) ;; insn-chain
) ;; function "test"