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      1 // RUN: %clang_cc1 -verify -fopenmp %s
      2 
      3 namespace X {
      4   int x;
      5 };
      6 
      7 struct B {
      8   static int ib; // expected-note {{'B::ib' declared here}}
      9   static int bfoo() { return 8; }
     10 };
     11 
     12 int bfoo() { return 4; }
     13 
     14 int z;
     15 const int C1 = 1;
     16 const int C2 = 2;
     17 void test_linear_colons()
     18 {
     19   int B = 0;
     20   #pragma omp taskloop simd linear(B:bfoo())
     21   for (int i = 0; i < 10; ++i) ;
     22   // expected-error@+1 {{unexpected ':' in nested name specifier; did you mean '::'}}
     23   #pragma omp taskloop simd linear(B::ib:B:bfoo())
     24   for (int i = 0; i < 10; ++i) ;
     25   // expected-error@+1 {{use of undeclared identifier 'ib'; did you mean 'B::ib'}}
     26   #pragma omp taskloop simd linear(B:ib)
     27   for (int i = 0; i < 10; ++i) ;
     28   // expected-error@+1 {{unexpected ':' in nested name specifier; did you mean '::'?}}
     29   #pragma omp taskloop simd linear(z:B:ib)
     30   for (int i = 0; i < 10; ++i) ;
     31   #pragma omp taskloop simd linear(B:B::bfoo())
     32   for (int i = 0; i < 10; ++i) ;
     33   #pragma omp taskloop simd linear(X::x : ::z)
     34   for (int i = 0; i < 10; ++i) ;
     35   #pragma omp taskloop simd linear(B,::z, X::x)
     36   for (int i = 0; i < 10; ++i) ;
     37   #pragma omp taskloop simd linear(::z)
     38   for (int i = 0; i < 10; ++i) ;
     39   // expected-error@+1 {{expected variable name}}
     40   #pragma omp taskloop simd linear(B::bfoo())
     41   for (int i = 0; i < 10; ++i) ;
     42   #pragma omp taskloop simd linear(B::ib,B:C1+C2)
     43   for (int i = 0; i < 10; ++i) ;
     44 }
     45 
     46 template<int L, class T, class N> T test_template(T* arr, N num) {
     47   N i;
     48   T sum = (T)0;
     49   T ind2 = - num * L; // expected-note {{'ind2' defined here}}
     50   // expected-error@+1 {{argument of a linear clause should be of integral or pointer type}}
     51 #pragma omp taskloop simd linear(ind2:L)
     52   for (i = 0; i < num; ++i) {
     53     T cur = arr[(int)ind2];
     54     ind2 += L;
     55     sum += cur;
     56   }
     57   return T();
     58 }
     59 
     60 template<int LEN> int test_warn() {
     61   int ind2 = 0;
     62   // expected-warning@+1 {{zero linear step (ind2 should probably be const)}}
     63   #pragma omp taskloop simd linear(ind2:LEN)
     64   for (int i = 0; i < 100; i++) {
     65     ind2 += LEN;
     66   }
     67   return ind2;
     68 }
     69 
     70 struct S1; // expected-note 2 {{declared here}} expected-note 2 {{forward declaration of 'S1'}}
     71 extern S1 a;
     72 class S2 {
     73   mutable int a;
     74 public:
     75   S2():a(0) { }
     76 };
     77 const S2 b; // expected-note 2 {{'b' defined here}}
     78 const S2 ba[5];
     79 class S3 {
     80   int a;
     81 public:
     82   S3():a(0) { }
     83 };
     84 const S3 ca[5];
     85 class S4 {
     86   int a;
     87   S4();
     88 public:
     89   S4(int v):a(v) { }
     90 };
     91 class S5 {
     92   int a;
     93   S5():a(0) {}
     94 public:
     95   S5(int v):a(v) { }
     96 };
     97 
     98 S3 h;
     99 #pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
    100 
    101 template<class I, class C> int foomain(I argc, C **argv) {
    102   I e(4);
    103   I g(5);
    104   int i;
    105   int &j = i;
    106   #pragma omp taskloop simd linear // expected-error {{expected '(' after 'linear'}}
    107   for (int k = 0; k < argc; ++k) ++k;
    108   #pragma omp taskloop simd linear ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
    109   for (int k = 0; k < argc; ++k) ++k;
    110   #pragma omp taskloop simd linear (val // expected-error {{use of undeclared identifier 'val'}} expected-error {{expected ')'}} expected-note {{to match this '('}}
    111   for (int k = 0; k < argc; ++k) ++k;
    112   #pragma omp taskloop simd linear (uval( // expected-error {{expected expression}} expected-error 2 {{expected ')'}} expected-note 2 {{to match this '('}}
    113   for (int k = 0; k < argc; ++k) ++k;
    114   #pragma omp taskloop simd linear (ref() // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
    115   for (int k = 0; k < argc; ++k) ++k;
    116   #pragma omp taskloop simd linear (foo() // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
    117   for (int k = 0; k < argc; ++k) ++k;
    118   #pragma omp taskloop simd linear () // expected-error {{expected expression}}
    119   for (int k = 0; k < argc; ++k) ++k;
    120   #pragma omp taskloop simd linear (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
    121   for (int k = 0; k < argc; ++k) ++k;
    122   #pragma omp taskloop simd linear (val argc // expected-error {{use of undeclared identifier 'val'}} expected-error {{expected ')'}} expected-note {{to match this '('}}
    123   for (int k = 0; k < argc; ++k) ++k;
    124   #pragma omp taskloop simd linear (val(argc, // expected-error {{expected expression}} expected-error 2 {{expected ')'}} expected-note 2 {{to match this '('}}
    125   for (int k = 0; k < argc; ++k) ++k;
    126   #pragma omp taskloop simd linear (argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
    127   for (int k = 0; k < argc; ++k) ++k;
    128   #pragma omp taskloop simd linear (argc : 5)
    129   for (int k = 0; k < argc; ++k) ++k;
    130   #pragma omp taskloop simd linear (S1) // expected-error {{'S1' does not refer to a value}}
    131   for (int k = 0; k < argc; ++k) ++k;
    132   // expected-error@+2 {{linear variable with incomplete type 'S1'}}
    133   // expected-error@+1 {{const-qualified variable cannot be linear}}
    134   #pragma omp taskloop simd linear (val(a, b):B::ib)
    135   for (int k = 0; k < argc; ++k) ++k;
    136   #pragma omp taskloop simd linear (argv[1]) // expected-error {{expected variable name}}
    137   for (int k = 0; k < argc; ++k) ++k;
    138   #pragma omp taskloop simd linear(ref(e, g)) // expected-error 2 {{variable of non-reference type 'int' can be used only with 'val' modifier, but used with 'ref'}}
    139   for (int k = 0; k < argc; ++k) ++k;
    140   #pragma omp taskloop simd linear(h) // expected-error {{threadprivate or thread local variable cannot be linear}}
    141   for (int k = 0; k < argc; ++k) ++k;
    142   #pragma omp taskloop simd linear(uval(i)) // expected-error {{variable of non-reference type 'int' can be used only with 'val' modifier, but used with 'uval'}}
    143   for (int k = 0; k < argc; ++k) ++k;
    144   #pragma omp parallel
    145   {
    146     int v = 0;
    147     int i;
    148     #pragma omp taskloop simd linear(v:i)
    149     for (int k = 0; k < argc; ++k) { i = k; v += i; }
    150   }
    151   #pragma omp taskloop simd linear(ref(j))
    152   for (int k = 0; k < argc; ++k) ++k;
    153   #pragma omp taskloop simd linear(uval(j))
    154   for (int k = 0; k < argc; ++k) ++k;
    155   int v = 0;
    156   #pragma omp taskloop simd linear(v:j)
    157   for (int k = 0; k < argc; ++k) { ++k; v += j; }
    158   #pragma omp taskloop simd linear(i)
    159   for (int k = 0; k < argc; ++k) ++k;
    160   return 0;
    161 }
    162 
    163 namespace A {
    164 double x;
    165 #pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
    166 }
    167 namespace C {
    168 using A::x;
    169 }
    170 
    171 void linear_modifiers(int argc) {
    172   int &f = argc;
    173   #pragma omp taskloop simd linear(f)
    174   for (int k = 0; k < argc; ++k) ++k;
    175   #pragma omp taskloop simd linear(val(f))
    176   for (int k = 0; k < argc; ++k) ++k;
    177   #pragma omp taskloop simd linear(uval(f))
    178   for (int k = 0; k < argc; ++k) ++k;
    179   #pragma omp taskloop simd linear(ref(f))
    180   for (int k = 0; k < argc; ++k) ++k;
    181   #pragma omp taskloop simd linear(foo(f)) // expected-error {{expected one of 'ref', val' or 'uval' modifiers}}
    182   for (int k = 0; k < argc; ++k) ++k;
    183 }
    184 
    185 int f;
    186 int main(int argc, char **argv) {
    187   double darr[100];
    188   // expected-note@+1 {{in instantiation of function template specialization 'test_template<-4, double, int>' requested here}}
    189   test_template<-4>(darr, 4);
    190   // expected-note@+1 {{in instantiation of function template specialization 'test_warn<0>' requested here}}
    191   test_warn<0>();
    192 
    193   S4 e(4); // expected-note {{'e' defined here}}
    194   S5 g(5); // expected-note {{'g' defined here}}
    195   int i;
    196   int &j = i;
    197   #pragma omp taskloop simd linear(f) linear(f) // expected-error {{linear variable cannot be linear}} expected-note {{defined as linear}}
    198   for (int k = 0; k < argc; ++k) ++k;
    199   #pragma omp taskloop simd linear // expected-error {{expected '(' after 'linear'}}
    200   for (int k = 0; k < argc; ++k) ++k;
    201   #pragma omp taskloop simd linear ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
    202   for (int k = 0; k < argc; ++k) ++k;
    203   #pragma omp taskloop simd linear () // expected-error {{expected expression}}
    204   for (int k = 0; k < argc; ++k) ++k;
    205   #pragma omp taskloop simd linear (val // expected-error {{use of undeclared identifier 'val'}} expected-error {{expected ')'}} expected-note {{to match this '('}}
    206   for (int k = 0; k < argc; ++k) ++k;
    207   #pragma omp taskloop simd linear (ref()) // expected-error {{expected expression}}
    208   for (int k = 0; k < argc; ++k) ++k;
    209   #pragma omp taskloop simd linear (foo()) // expected-error {{expected expression}}
    210   for (int k = 0; k < argc; ++k) ++k;
    211   #pragma omp taskloop simd linear (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
    212   for (int k = 0; k < argc; ++k) ++k;
    213   #pragma omp taskloop simd linear (argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
    214   for (int k = 0; k < argc; ++k) ++k;
    215   #pragma omp taskloop simd linear (argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
    216   for (int k = 0; k < argc; ++k) ++k;
    217   #pragma omp taskloop simd linear (argc)
    218   for (int k = 0; k < argc; ++k) ++k;
    219   #pragma omp taskloop simd linear (S1) // expected-error {{'S1' does not refer to a value}}
    220   for (int k = 0; k < argc; ++k) ++k;
    221   // expected-error@+2 {{linear variable with incomplete type 'S1'}}
    222   // expected-error@+1 {{const-qualified variable cannot be linear}}
    223   #pragma omp taskloop simd linear(a, b)
    224   for (int k = 0; k < argc; ++k) ++k;
    225   #pragma omp taskloop simd linear (argv[1]) // expected-error {{expected variable name}}
    226   for (int k = 0; k < argc; ++k) ++k;
    227   // expected-error@+2 {{argument of a linear clause should be of integral or pointer type, not 'S4'}}
    228   // expected-error@+1 {{argument of a linear clause should be of integral or pointer type, not 'S5'}}
    229   #pragma omp taskloop simd linear(val(e, g))
    230   for (int k = 0; k < argc; ++k) ++k;
    231   #pragma omp taskloop simd linear(h, C::x) // expected-error 2 {{threadprivate or thread local variable cannot be linear}}
    232   for (int k = 0; k < argc; ++k) ++k;
    233   #pragma omp parallel
    234   {
    235     int i;
    236     #pragma omp taskloop simd linear(val(i))
    237     for (int k = 0; k < argc; ++k) ++k;
    238     #pragma omp taskloop simd linear(uval(i) : 4) // expected-error {{variable of non-reference type 'int' can be used only with 'val' modifier, but used with 'uval'}}
    239     for (int k = 0; k < argc; ++k) { ++k; i += 4; }
    240   }
    241   #pragma omp taskloop simd linear(ref(j))
    242   for (int k = 0; k < argc; ++k) ++k;
    243   #pragma omp taskloop simd linear(i)
    244   for (int k = 0; k < argc; ++k) ++k;
    245 
    246   foomain<int,char>(argc,argv); // expected-note {{in instantiation of function template specialization 'foomain<int, char>' requested here}}
    247   return 0;
    248 }
    249 
    250