Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
; RUN: llc < %s -mtriple=arm-linux-gnueabi ; PR4716 define void @_start() nounwind naked { entry: tail call void @exit(i32 undef) noreturn nounwind unreachable } declare void @exit(i32) noreturn nounwind