Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// RUN: %clang_cc1 %s -emit-llvm -fsanitize=unreachable -o - | FileCheck %s // CHECK-LABEL: @f( void __attribute__((noreturn)) f(void) { // CHECK: __ubsan_handle_builtin_unreachable // CHECK: unreachable }