gcc/testsuite/selftests/repeat.rtl

(function "repeat_examples"
  (insn-chain
    (block 2
      (edge-from entry (flags "FALLTHRU"))
      (cinsn 1
        (parallel [(const_int 0) repeated x64])
        "test.c":2 (nil))
      (edge-to exit (flags "FALLTHRU"))
    ) ;; block 2
  ) ;; insn-chain
) ;; function