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