Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// RUN: %clang_cc1 -triple x86_64-apple-macosx10.7.0 -emit-llvm -o - %s | FileCheck %s // CHECK: @b ={{.*}} thread_local global i32 5, align 4 __thread int b = 5;