Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

default-function-attr.c
// RUN: %clang_cc1 -triple x86_64-unknown-linux -default-function-attr foo=bar -emit-llvm %s -o - | FileCheck %s

// CHECK: define{{.*}} void @foo() #[[X:[0-9]+]]
void foo(void) {}

// CHECK: attributes #[[X]] = {{.*}} "foo"="bar"