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      1 // RUN: %clang_cc1 -verify -fopenmp=libiomp5 %s
      2 
      3 void foo() {
      4 }
      5 
      6 bool foobool(int argc) {
      7   return argc;
      8 }
      9 
     10 struct S1; // expected-note 2 {{declared here}} expected-note 2 {{forward declaration of 'S1'}}
     11 extern S1 a;
     12 class S2 {
     13   mutable int a;
     14 
     15 public:
     16   S2() : a(0) {}
     17   S2(S2 &s2) : a(s2.a) {}
     18   static float S2s;
     19   static const float S2sc;
     20 };
     21 const float S2::S2sc = 0;
     22 const S2 b;
     23 const S2 ba[5];
     24 class S3 {
     25   int a;
     26   S3 &operator=(const S3 &s3);
     27 
     28 public:
     29   S3() : a(0) {}
     30   S3(S3 &s3) : a(s3.a) {}
     31 };
     32 const S3 c;
     33 const S3 ca[5];
     34 extern const int f;
     35 class S4 { // expected-note 2 {{'S4' declared here}}
     36   int a;
     37   S4();
     38   S4(const S4 &s4);
     39 
     40 public:
     41   S4(int v) : a(v) {}
     42 };
     43 class S5 { // expected-note 4 {{'S5' declared here}}
     44   int a;
     45   S5(const S5 &s5) : a(s5.a) {}
     46 
     47 public:
     48   S5() : a(0) {}
     49   S5(int v) : a(v) {}
     50 };
     51 class S6 {
     52   int a;
     53   S6() : a(0) {}
     54 
     55 public:
     56   S6(const S6 &s6) : a(s6.a) {}
     57   S6(int v) : a(v) {}
     58 };
     59 
     60 S3 h;
     61 #pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
     62 
     63 template <class I, class C>
     64 int foomain(int argc, char **argv) {
     65   I e(4); // expected-note {{'e' defined here}}
     66   C g(5); // expected-note 2 {{'g' defined here}}
     67   int i;
     68   int &j = i; // expected-note {{'j' defined here}}
     69 #pragma omp parallel
     70 #pragma omp single firstprivate // expected-error {{expected '(' after 'firstprivate'}}
     71   foo();
     72 #pragma omp parallel
     73 #pragma omp single firstprivate( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
     74   foo();
     75 #pragma omp parallel
     76 #pragma omp single firstprivate() // expected-error {{expected expression}}
     77   foo();
     78 #pragma omp parallel
     79 #pragma omp single firstprivate(argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
     80   foo();
     81 #pragma omp parallel
     82 #pragma omp single firstprivate(argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
     83   foo();
     84 #pragma omp parallel
     85 #pragma omp single firstprivate(argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
     86   foo();
     87 #pragma omp parallel
     88 #pragma omp single firstprivate(argc)
     89   foo();
     90 #pragma omp parallel
     91 #pragma omp single firstprivate(S1) // expected-error {{'S1' does not refer to a value}}
     92   foo();
     93 #pragma omp parallel
     94 #pragma omp single firstprivate(a, b) // expected-error {{firstprivate variable with incomplete type 'S1'}}
     95   foo();
     96 #pragma omp parallel
     97 #pragma omp single firstprivate(argv[1]) // expected-error {{expected variable name}}
     98   foo();
     99 #pragma omp parallel
    100 #pragma omp single firstprivate(e, g) // expected-error 2 {{firstprivate variable must have an accessible, unambiguous copy constructor}}
    101   foo();
    102 #pragma omp parallel
    103 #pragma omp single firstprivate(h) // expected-error {{threadprivate or thread local variable cannot be firstprivate}}
    104   foo();
    105 #pragma omp parallel
    106 #pragma omp single linear(i) // expected-error {{unexpected OpenMP clause 'linear' in directive '#pragma omp single'}}
    107   foo();
    108 #pragma omp parallel
    109   {
    110     int v = 0;
    111     int i;                         // expected-note {{variable with automatic storage duration is predetermined as private; perhaps you forget to enclose 'omp single' directive into a parallel or another task region?}}
    112 #pragma omp single firstprivate(i) // expected-error {{private variable cannot be firstprivate}}
    113     foo();
    114     v += i;
    115   }
    116 #pragma omp parallel shared(i)
    117 #pragma omp parallel private(i)
    118 #pragma omp single firstprivate(j) // expected-error {{arguments of OpenMP clause 'firstprivate' cannot be of reference type}}
    119   foo();
    120 #pragma omp parallel
    121 #pragma omp single firstprivate(i)
    122   foo();
    123 #pragma omp parallel
    124 #pragma omp single firstprivate(g) // expected-error {{firstprivate variable must have an accessible, unambiguous copy constructor}}
    125   foo();
    126 #pragma omp parallel private(i)    // expected-note {{defined as private}}
    127 #pragma omp single firstprivate(i) // expected-error {{firstprivate variable must be shared}}
    128   foo();
    129 #pragma omp parallel reduction(+ : i) // expected-note {{defined as reduction}}
    130 #pragma omp single firstprivate(i)    // expected-error {{firstprivate variable must be shared}}
    131   foo();
    132   return 0;
    133 }
    134 
    135 int main(int argc, char **argv) {
    136   const int d = 5;
    137   const int da[5] = {0};
    138   S4 e(4); // expected-note {{'e' defined here}}
    139   S5 g(5); // expected-note 2 {{'g' defined here}}
    140   S3 m;
    141   S6 n(2);
    142   int i;
    143   int &j = i; // expected-note {{'j' defined here}}
    144 #pragma omp parallel
    145 #pragma omp single firstprivate // expected-error {{expected '(' after 'firstprivate'}}
    146   foo();
    147 #pragma omp parallel
    148 #pragma omp single firstprivate( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
    149   foo();
    150 #pragma omp parallel
    151 #pragma omp single firstprivate() // expected-error {{expected expression}}
    152   foo();
    153 #pragma omp parallel
    154 #pragma omp single firstprivate(argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
    155   foo();
    156 #pragma omp parallel
    157 #pragma omp single firstprivate(argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
    158   foo();
    159 #pragma omp parallel
    160 #pragma omp single firstprivate(argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
    161   foo();
    162 #pragma omp parallel
    163 #pragma omp single firstprivate(argc)
    164   foo();
    165 #pragma omp parallel
    166 #pragma omp single firstprivate(S1) // expected-error {{'S1' does not refer to a value}}
    167   foo();
    168 #pragma omp parallel
    169 #pragma omp single firstprivate(a, b, c, d, f) // expected-error {{firstprivate variable with incomplete type 'S1'}}
    170   foo();
    171 #pragma omp parallel
    172 #pragma omp single firstprivate(argv[1]) // expected-error {{expected variable name}}
    173   foo();
    174 #pragma omp parallel
    175 #pragma omp single firstprivate(2 * 2) // expected-error {{expected variable name}}
    176   foo();
    177 #pragma omp parallel
    178 #pragma omp single firstprivate(ba) // OK
    179   foo();
    180 #pragma omp parallel
    181 #pragma omp single firstprivate(ca) // OK
    182   foo();
    183 #pragma omp parallel
    184 #pragma omp single firstprivate(da) // OK
    185   foo();
    186   int xa;
    187 #pragma omp parallel
    188 #pragma omp single firstprivate(xa) // OK
    189   foo();
    190 #pragma omp parallel
    191 #pragma omp single firstprivate(S2::S2s) // OK
    192   foo();
    193 #pragma omp parallel
    194 #pragma omp single firstprivate(S2::S2sc) // OK
    195   foo();
    196 #pragma omp parallel
    197 #pragma omp single safelen(5) // expected-error {{unexpected OpenMP clause 'safelen' in directive '#pragma omp single'}}
    198   foo();
    199 #pragma omp parallel
    200 #pragma omp single firstprivate(e, g) // expected-error 2 {{firstprivate variable must have an accessible, unambiguous copy constructor}}
    201   foo();
    202 #pragma omp parallel
    203 #pragma omp single firstprivate(m) // OK
    204   foo();
    205 #pragma omp parallel
    206 #pragma omp single firstprivate(h) // expected-error {{threadprivate or thread local variable cannot be firstprivate}}
    207   foo();
    208 #pragma omp parallel
    209 #pragma omp single private(xa), firstprivate(xa) // expected-error {{private variable cannot be firstprivate}} expected-note {{defined as private}}
    210   foo();
    211 #pragma omp parallel shared(xa)
    212 #pragma omp single firstprivate(xa) // OK: may be firstprivate
    213   foo();
    214 #pragma omp parallel
    215 #pragma omp single firstprivate(j) // expected-error {{arguments of OpenMP clause 'firstprivate' cannot be of reference type}}
    216   foo();
    217 #pragma omp parallel
    218 #pragma omp single firstprivate(g) // expected-error {{firstprivate variable must have an accessible, unambiguous copy constructor}}
    219   foo();
    220 #pragma omp parallel
    221 #pragma omp single firstprivate(n) // OK
    222   foo();
    223 #pragma omp parallel
    224   {
    225     int v = 0;
    226     int i;                         // expected-note {{variable with automatic storage duration is predetermined as private; perhaps you forget to enclose 'omp single' directive into a parallel or another task region?}}
    227 #pragma omp single firstprivate(i) // expected-error {{private variable cannot be firstprivate}}
    228     foo();
    229     v += i;
    230   }
    231 #pragma omp parallel private(i)    // expected-note {{defined as private}}
    232 #pragma omp single firstprivate(i) // expected-error {{firstprivate variable must be shared}}
    233   foo();
    234 #pragma omp parallel reduction(+ : i) // expected-note {{defined as reduction}}
    235 #pragma omp single firstprivate(i)    // expected-error {{firstprivate variable must be shared}}
    236   foo();
    237 
    238   return foomain<S4, S5>(argc, argv); // expected-note {{in instantiation of function template specialization 'foomain<S4, S5>' requested here}}
    239 }
    240