clang/test/OpenMP/for_simd_linear_messages.cpp

   1 // RUN: %clang_cc1 -verify -fopenmp %s -Wuninitialized
   2 // RUN: %clang_cc1 -verify=expected,omp52 -fopenmp -fopenmp-version=52 -DOMP52 %s -Wuninitialized
   3
   4 // RUN: %clang_cc1 -verify -fopenmp-simd %s -Wuninitialized
   5 // RUN: %clang_cc1 -verify=expected,omp52 -fopenmp-simd -fopenmp-version=52 -DOMP52 %s -Wuninitialized
   6
   7 extern int omp_default_mem_alloc;
   8
   9 void xxx(int argc) {
  10   int i, lin, step_sz; // expected-note {{initialize the variable 'lin' to silence this warning}} expected-note {{initialize the variable 'step_sz' to silence this warning}}
  11 #pragma omp for simd linear(i, lin : step_sz) // expected-warning {{variable 'lin' is uninitialized when used here}} expected-warning {{variable 'step_sz' is uninitialized when used here}}
  12   for (i = 0; i < 10; ++i)
  13     ;
  14 }
  15
  16 namespace X {
  17   int x;
  18 };
  19
  20 struct B {
  21   static int ib; // expected-note {{'B::ib' declared here}}
  22   static int bfoo() { return 8; }
  23 };
  24
  25 int bfoo() { return 4; }
  26
  27 int z;
  28 const int C1 = 1;
  29 const int C2 = 2;
  30 void test_linear_colons()
  31 {
  32   int B = 0;
  33   #pragma omp for simd linear(B:bfoo())
  34   for (int i = 0; i < 10; ++i) ;
  35   // expected-error@+1 {{unexpected ':' in nested name specifier; did you mean '::'}}
  36   #pragma omp for simd linear(B::ib:B:bfoo())
  37   for (int i = 0; i < 10; ++i) ;
  38   // expected-error@+1 {{use of undeclared identifier 'ib'; did you mean 'B::ib'}}
  39   #pragma omp for simd linear(B:ib)
  40   for (int i = 0; i < 10; ++i) ;
  41   // expected-error@+1 {{unexpected ':' in nested name specifier; did you mean '::'?}}
  42   #pragma omp for simd linear(z:B:ib)
  43   for (int i = 0; i < 10; ++i) ;
  44   #pragma omp for simd linear(B:B::bfoo())
  45   for (int i = 0; i < 10; ++i) ;
  46   #pragma omp for simd linear(X::x : ::z)
  47   for (int i = 0; i < 10; ++i) ;
  48   #pragma omp for simd linear(B,::z, X::x)
  49   for (int i = 0; i < 10; ++i) ;
  50   #pragma omp for simd linear(::z)
  51   for (int i = 0; i < 10; ++i) ;
  52   // expected-error@+1 {{expected variable name}}
  53   #pragma omp for simd linear(B::bfoo())
  54   for (int i = 0; i < 10; ++i) ;
  55   #pragma omp for simd linear(B::ib,B:C1+C2)
  56   for (int i = 0; i < 10; ++i) ;
  57 }
  58
  59 template<int L, class T, class N> T test_template(T* arr, N num) {
  60   N i;
  61   T sum = (T)0;
  62   T ind2 = - num * L; // expected-note {{'ind2' defined here}}
  63   // expected-error@+1 {{argument of a linear clause should be of integral or pointer type}}
  64 #pragma omp for simd linear(ind2:L)
  65   for (i = 0; i < num; ++i) {
  66     T cur = arr[(int)ind2];
  67     ind2 += L;
  68     sum += cur;
  69   }
  70   return T();
  71 }
  72
  73 template<int LEN> int test_warn() {
  74   int ind2 = 0;
  75   // expected-warning@+1 {{zero linear step (ind2 should probably be const)}}
  76   #pragma omp for simd linear(ind2:LEN)
  77   for (int i = 0; i < 100; i++) {
  78     ind2 += LEN;
  79   }
  80   return ind2;
  81 }
  82
  83 struct S1; // expected-note 2 {{declared here}} expected-note 2 {{forward declaration of 'S1'}}
  84 extern S1 a;
  85 class S2 {
  86   mutable int a;
  87 public:
  88   S2():a(0) { }
  89 };
  90 const S2 b; // expected-note 2 {{'b' defined here}}
  91 const S2 ba[5];
  92 class S3 {
  93   int a;
  94 public:
  95   S3():a(0) { }
  96 };
  97 const S3 ca[5];
  98 class S4 {
  99   int a;
 100   S4();
 101 public:
 102   S4(int v):a(v) { }
 103 };
 104 class S5 {
 105   int a;
 106   S5():a(0) {}
 107 public:
 108   S5(int v):a(v) { }
 109 };
 110
 111 S3 h;
 112 #pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
 113
 114 template<class I, class C> int foomain(I argc, C **argv) {
 115   I e(4);
 116   I g(5);
 117   int i;
 118   int &j = i;
 119   #pragma omp for simd linear // expected-error {{expected '(' after 'linear'}}
 120   for (int k = 0; k < argc; ++k) ++k;
 121   #pragma omp for simd linear ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
 122   for (int k = 0; k < argc; ++k) ++k;
 123   #pragma omp for simd linear () // expected-error {{expected expression}}
 124   for (int k = 0; k < argc; ++k) ++k;
 125   #pragma omp for simd linear (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
 126   for (int k = 0; k < argc; ++k) ++k;
 127   #pragma omp for simd linear (argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
 128   for (int k = 0; k < argc; ++k) ++k;
 129   #pragma omp for simd linear (argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
 130   for (int k = 0; k < argc; ++k) ++k;
 131   #pragma omp for simd linear (argc : 5) allocate , allocate(, allocate(omp_default , allocate(omp_default_mem_alloc, allocate(omp_default_mem_alloc:, allocate(omp_default_mem_alloc: argc, allocate(omp_default_mem_alloc: argv), allocate(argv) // expected-error {{expected '(' after 'allocate'}} expected-error 2 {{expected expression}} expected-error 2 {{expected ')'}} expected-error {{use of undeclared identifier 'omp_default'}} expected-note 2 {{to match this '('}}
 132   for (int k = 0; k < argc; ++k) ++k;
 133   #pragma omp for simd linear (S1) // expected-error {{'S1' does not refer to a value}}
 134   for (int k = 0; k < argc; ++k) ++k;
 135   // expected-error@+2 {{linear variable with incomplete type 'S1'}}
 136   // expected-error@+1 {{argument of a linear clause should be of integral or pointer type, not 'S2'}}
 137   #pragma omp for simd linear (a, b:B::ib)
 138   for (int k = 0; k < argc; ++k) ++k;
 139   #pragma omp for simd linear (argv[1]) // expected-error {{expected variable name}}
 140   for (int k = 0; k < argc; ++k) ++k;
 141   #pragma omp for simd linear(e, g)
 142   for (int k = 0; k < argc; ++k) ++k;
 143   #pragma omp for simd linear(h) // expected-error {{threadprivate or thread local variable cannot be linear}}
 144   for (int k = 0; k < argc; ++k) ++k;
 145   #pragma omp for simd linear(i)
 146   for (int k = 0; k < argc; ++k) ++k;
 147   #pragma omp parallel
 148   {
 149     int v = 0;
 150     long z;
 151     int i;
 152     #pragma omp for simd linear(z, v:i)
 153     for (int k = 0; k < argc; ++k) { i = k; v += i; }
 154   }
 155   #pragma omp for simd linear(j)
 156   for (int k = 0; k < argc; ++k) ++k;
 157   int v = 0;
 158   #pragma omp for simd linear(v:j)
 159   for (int k = 0; k < argc; ++k) { ++k; v += j; }
 160   #pragma omp for simd linear(i)
 161   for (int k = 0; k < argc; ++k) ++k;
 162   return 0;
 163 }
 164
 165 namespace A {
 166 double x;
 167 #pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
 168 }
 169 namespace C {
 170 using A::x;
 171 }
 172
 173 int main(int argc, char **argv) {
 174   double darr[100];
 175   // expected-note@+1 {{in instantiation of function template specialization 'test_template<-4, double, int>' requested here}}
 176   test_template<-4>(darr, 4);
 177   // expected-note@+1 {{in instantiation of function template specialization 'test_warn<0>' requested here}}
 178   test_warn<0>();
 179
 180   S4 e(4); // expected-note {{'e' defined here}}
 181   S5 g(5); // expected-note {{'g' defined here}}
 182   int i;
 183   int &j = i;
 184   #pragma omp for simd linear // expected-error {{expected '(' after 'linear'}}
 185   for (int k = 0; k < argc; ++k) ++k;
 186   #pragma omp for simd linear ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
 187   for (int k = 0; k < argc; ++k) ++k;
 188   #pragma omp for simd linear () // expected-error {{expected expression}}
 189   for (int k = 0; k < argc; ++k) ++k;
 190   #pragma omp for simd linear (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
 191   for (int k = 0; k < argc; ++k) ++k;
 192   #pragma omp for simd linear (argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
 193   for (int k = 0; k < argc; ++k) ++k;
 194   #pragma omp for simd linear (argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name}}
 195   for (int k = 0; k < argc; ++k) ++k;
 196   #pragma omp for simd linear (argc)
 197   for (int k = 0; k < argc; ++k) ++k;
 198   #pragma omp for simd linear (S1) // expected-error {{'S1' does not refer to a value}}
 199   for (int k = 0; k < argc; ++k) ++k;
 200   // expected-error@+2 {{linear variable with incomplete type 'S1'}}
 201   // expected-error@+1 {{argument of a linear clause should be of integral or pointer type, not 'S2'}}
 202   #pragma omp for simd linear(a, b)
 203   for (int k = 0; k < argc; ++k) ++k;
 204   #pragma omp for simd linear (argv[1]) // expected-error {{expected variable name}}
 205   for (int k = 0; k < argc; ++k) ++k;
 206   // expected-error@+2 {{argument of a linear clause should be of integral or pointer type, not 'S4'}}
 207   // expected-error@+1 {{argument of a linear clause should be of integral or pointer type, not 'S5'}}
 208   #pragma omp for simd linear(e, g)
 209   for (int k = 0; k < argc; ++k) ++k;
 210   #pragma omp for simd linear(h, C::x) // expected-error 2 {{threadprivate or thread local variable cannot be linear}}
 211   for (int k = 0; k < argc; ++k) ++k;
 212   #pragma omp parallel
 213   {
 214     int i;
 215     #pragma omp for simd linear(i)
 216     for (int k = 0; k < argc; ++k) ++k;
 217 #ifdef OMP52
 218     #pragma omp for simd linear(i : step(4))
 219 #else
 220     #pragma omp for simd linear(i : 4)
 221 #endif
 222     for (int k = 0; k < argc; ++k) { ++k; i += 4; }
 223   }
 224 #ifdef OMP52
 225   #pragma omp for simd linear(j: step() //omp52-error 2 {{expected expression}} omp52-error{{expected ')'}} omp52-note{{to match this '('}}
 226 #else
 227   #pragma omp for simd linear(j)
 228 #endif
 229   for (int k = 0; k < argc; ++k) ++k;
 230 #ifdef OMP52
 231   #pragma omp for simd linear(i: step(1), step(2)) // omp52-error {{multiple 'step size' found in linear clause}}
 232 #else
 233   #pragma omp for simd linear(i)
 234 #endif
 235   for (int k = 0; k < argc; ++k) ++k;
 236 #ifdef OMP52
 237   #pragma omp for simd linear(j: step()) // omp52-error 2 {{expected expression}}
 238   for (int k = 0; k < argc; ++k) ++k;
 239   #pragma omp for simd linear(j: pval) // omp52-error {{use of undeclared identifier 'pval'}}
 240   for (int k = 0; k < argc; ++k) ++k;
 241   #pragma omp for simd linear(i: val, step(2 // omp52-error 3 {{expected ')'}}  omp52-note 2 {{to match this '('}}
 242   for (int k = 0; k < argc; ++k) ++k;
 243 #endif
 244
 245   foomain<int,char>(argc,argv); // expected-note {{in instantiation of function template specialization 'foomain<int, char>' requested here}}
 246   return 0;
 247 }
 248