Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" $foo = comdat any @foo = global i8 1, comdat define void @zed() { call void @bar() ret void } define void @bar() comdat($foo) { ret void }