(function "jump_to_return"
  (insn-chain
    (block 4
      (edge-from entry (flags "FALLTHRU"))
      (cjump_insn 1 (return)
        "../../src/gcc/testsuite/rtl.dg/test.c":4
        (nil))
      (edge-to exit (flags "FALLTHRU"))
    ) ;; block 4
  ) ;; insn-chain
) ;; function