|  | // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fsyntax-only -verify %s | 
|  | // RUN: %clang_cc1 -triple nvptx-unknown-cuda -fsyntax-only -verify -fcuda-is-device %s | 
|  | // | 
|  | // We run clang_cc1 with 'not' because source file contains | 
|  | // intentional errors. CC1 failure is expected and must be ignored | 
|  | // here. We're interested in what ends up in AST and that's what | 
|  | // FileCheck verifies. | 
|  | // RUN: not %clang_cc1 -triple x86_64-unknown-linux-gnu -fsyntax-only -ast-dump %s \ | 
|  | // RUN:   | FileCheck %s --check-prefix=CHECK-ALL --check-prefix=CHECK-HOST | 
|  | // RUN: not %clang_cc1 -triple nvptx-unknown-cuda -fsyntax-only -ast-dump -fcuda-is-device %s \ | 
|  | // RUN:   | FileCheck %s --check-prefix=CHECK-ALL --check-prefix=CHECK-DEVICE | 
|  |  | 
|  | #include "Inputs/cuda.h" | 
|  |  | 
|  | // Host (x86) supports TLS and device-side compilation should ignore | 
|  | // host variables. No errors in either case. | 
|  | int __thread host_tls_var; | 
|  | // CHECK-ALL: host_tls_var 'int' tls | 
|  |  | 
|  | #if defined(__CUDA_ARCH__) | 
|  | // NVPTX does not support TLS | 
|  | __device__ int __thread device_tls_var; // expected-error {{thread-local storage is not supported for the current target}} | 
|  | // CHECK-DEVICE: device_tls_var 'int' tls | 
|  | __shared__ int __thread shared_tls_var; // expected-error {{thread-local storage is not supported for the current target}} | 
|  | // CHECK-DEVICE: shared_tls_var 'int' tls | 
|  | #else | 
|  | // Device-side vars should not produce any errors during host-side | 
|  | // compilation. | 
|  | __device__ int __thread device_tls_var; | 
|  | // CHECK-HOST: device_tls_var 'int' tls | 
|  | __shared__ int __thread shared_tls_var; | 
|  | // CHECK-HOST: shared_tls_var 'int' tls | 
|  | #endif | 
|  |  | 
|  | __global__ void g1(int x) {} | 
|  | __global__ int g2(int x) { // expected-error {{must have void return type}} | 
|  | return 1; | 
|  | } |