1 // Make sure that __global__ functions are emitted along with correct 2 // annotations and are added to @llvm.used to prevent their elimination. 3 // REQUIRES: nvptx-registered-target 4 // 5 // RUN: %clang_cc1 %s -triple nvptx-unknown-unknown -fcuda-is-device -emit-llvm -o - | FileCheck %s 6 7 #include "Inputs/cuda.h" 8 9 // CHECK-LABEL: define void @device_function 10 extern "C" 11 __device__ void device_function() {} 12 13 // CHECK-LABEL: define void @global_function 14 extern "C" 15 __global__ void global_function() { 16 // CHECK: call void @device_function 17 device_function(); 18 } 19 20 // Make sure host-instantiated kernels are preserved on device side. 21 template <typename T> __global__ void templated_kernel(T param) {} 22 // CHECK-LABEL: define weak_odr void @_Z16templated_kernelIiEvT_ 23 void host_function() { templated_kernel<<<0,0>>>(0); } 24 25 // CHECK: !{{[0-9]+}} = !{void ()* @global_function, !"kernel", i32 1} 26 // CHECK: !{{[0-9]+}} = !{void (i32)* @_Z16templated_kernelIiEvT_, !"kernel", i32 1} 27
