Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// RUN: %clang_cc1 -fwarn-stack-size=42 -emit-llvm -o - %s | FileCheck %s void foo(void) {} // CHECK: define {{.*}} @foo() [[ATTR:#[0-9]+]] { // CHECK: attributes [[ATTR]] = {{.*}} "warn-stack-size"="42"