| 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-DAG: define void @_Z16templated_kernelIiEvT_( |
|---|
| 23 | |
|---|
| 24 | namespace { |
|---|
| 25 | __global__ void anonymous_ns_kernel() {} |
|---|
| 26 | // CHECK-DAG: define void @_ZN12_GLOBAL__N_119anonymous_ns_kernelEv( |
|---|
| 27 | } |
|---|
| 28 | |
|---|
| 29 | void host_function() { |
|---|
| 30 | templated_kernel<<<0, 0>>>(0); |
|---|
| 31 | anonymous_ns_kernel<<<0,0>>>(); |
|---|
| 32 | } |
|---|
| 33 | |
|---|
| 34 | // CHECK: !{{[0-9]+}} = !{void ()* @global_function, !"kernel", i32 1} |
|---|
| 35 | // CHECK: !{{[0-9]+}} = !{void (i32)* @_Z16templated_kernelIiEvT_, !"kernel", i32 1} |
|---|
| 36 | |
|---|