Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

call-kernel-from-kernel.cu
// RUN: %clang_cc1 %s --std=c++11 -triple nvptx -emit-llvm -o - \
// RUN:   -verify -fcuda-is-device -fsyntax-only -verify-ignore-unexpected=note

#include "Inputs/cuda.h"

__global__ void kernel1();
__global__ void kernel2() {
  kernel1<<<1,1>>>(); // expected-error {{reference to __global__ function 'kernel1' in __global__ function}}
}