Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
; RUN: llc < %s -mtriple=arm64-apple-ios | FileCheck %s @x = extern_weak global i32 define i32 @fn() nounwind ssp { ; CHECK-LABEL: fn: ; CHECK: .weak_reference %val = load i32, i32* @x, align 4 ret i32 %val }