Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// RUN: %clang_cc1 -triple thumbv7m-apple-darwin-eabi -ast-dump %s | FileCheck %s // CHECK: CallExpr {{.*}} 'int' void foo(int a, int *b) { do { } while (__builtin_arm_strex(a, b)); }