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      1 // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fsyntax-only -verify %s
      2 // RUN: %clang_cc1 -triple nvptx-unknown-cuda -fsyntax-only -verify -fcuda-is-device %s
      3 //
      4 // We run clang_cc1 with 'not' because source file contains
      5 // intentional errors. CC1 failure is expected and must be ignored
      6 // here. We're interested in what ends up in AST and that's what
      7 // FileCheck verifies.
      8 // RUN: not %clang_cc1 -triple x86_64-unknown-linux-gnu -fsyntax-only -ast-dump %s \
      9 // RUN:   | FileCheck %s --check-prefix=CHECK-ALL --check-prefix=CHECK-HOST
     10 // RUN: not %clang_cc1 -triple nvptx-unknown-cuda -fsyntax-only -ast-dump -fcuda-is-device %s \
     11 // RUN:   | FileCheck %s --check-prefix=CHECK-ALL --check-prefix=CHECK-DEVICE
     12 
     13 #include "Inputs/cuda.h"
     14 
     15 // Host (x86) supports TLS and device-side compilation should ignore
     16 // host variables. No errors in either case.
     17 int __thread host_tls_var;
     18 // CHECK-ALL: host_tls_var 'int' tls
     19 
     20 #if defined(__CUDA_ARCH__)
     21 // NVPTX does not support TLS
     22 __device__ int __thread device_tls_var; // expected-error {{thread-local storage is not supported for the current target}}
     23 // CHECK-DEVICE: device_tls_var 'int' tls
     24 __shared__ int __thread shared_tls_var; // expected-error {{thread-local storage is not supported for the current target}}
     25 // CHECK-DEVICE: shared_tls_var 'int' tls
     26 #else
     27 // Device-side vars should not produce any errors during host-side
     28 // compilation.
     29 __device__ int __thread device_tls_var;
     30 // CHECK-HOST: device_tls_var 'int' tls
     31 __shared__ int __thread shared_tls_var;
     32 // CHECK-HOST: shared_tls_var 'int' tls
     33 #endif
     34 
     35 __global__ void g1(int x) {}
     36 __global__ int g2(int x) { // expected-error {{must have void return type}}
     37   return 1;
     38 }
     39