clang/test/OpenMP/parallel_for_reduction_messages.cpp

   1 // RUN: %clang_cc1 -verify=expected,omp51 -fopenmp -ferror-limit 150 -o - %s -Wuninitialized
   2 // RUN: %clang_cc1 -verify=expected,omp51 -fopenmp -std=c++98 -ferror-limit 150 -o - %s -Wuninitialized
   3 // RUN: %clang_cc1 -verify=expected,omp51 -fopenmp -std=c++11 -ferror-limit 150 -o - %s -Wuninitialized
   4 // RUN: %clang_cc1 -verify=expected,omp52 -fopenmp -fopenmp-version=52 -ferror-limit 150 -o - %s -Wuninitialized
   5 // RUN: %clang_cc1 -verify=expected,omp52 -fopenmp -fopenmp-version=52 -std=c++98 -ferror-limit 150 -o - %s -Wuninitialized
   6 // RUN: %clang_cc1 -verify=expected,omp52 -fopenmp -fopenmp-version=52 -std=c++11 -ferror-limit 150 -o - %s -Wuninitialized
   7 // RUN: %clang_cc1 -verify=expected,omp60 -fopenmp -fopenmp-version=60 -o - %s -Wuninitialized
   8 // RUN: %clang_cc1 -verify=expected,omp60 -fopenmp -fopenmp-version=60 -std=c++98 -o - %s -Wuninitialized
   9 // RUN: %clang_cc1 -verify=expected,omp60 -fopenmp -fopenmp-version=60 -std=c++11 -o - %s -Wuninitialized
  10 // RUN: %clang_cc1 -verify=expected,omp60 -fopenmp -fopenmp-version=60 -o - %s -Wuninitialized
  11 // RUN: %clang_cc1 -verify=expected,omp60 -fopenmp -fopenmp-version=60 -std=c++98 -o - %s -Wuninitialized
  12 // RUN: %clang_cc1 -verify=expected,omp60 -fopenmp -fopenmp-version=60 -std=c++11 -o - %s -Wuninitialized
  13
  14 // RUN: %clang_cc1 -verify=expected,omp51 -fopenmp-simd -ferror-limit 150 -o - %s -Wuninitialized
  15 // RUN: %clang_cc1 -verify=expected,omp51 -fopenmp-simd -std=c++98 -ferror-limit 150 -o - %s -Wuninitialized
  16 // RUN: %clang_cc1 -verify=expected,omp51 -fopenmp-simd -std=c++11 -ferror-limit 150 -o - %s -Wuninitialized
  17 // RUN: %clang_cc1 -verify=expected,omp52 -fopenmp-simd -fopenmp-version=52 -ferror-limit 150 -o - %s -Wuninitialized
  18 // RUN: %clang_cc1 -verify=expected,omp52 -fopenmp-simd -fopenmp-version=52 -std=c++98 -ferror-limit 150 -o - %s -Wuninitialized
  19 // RUN: %clang_cc1 -verify=expected,omp52 -fopenmp-simd -fopenmp-version=52 -std=c++11 -ferror-limit 150 -o - %s -Wuninitialized
  20 // RUN: %clang_cc1 -verify=expected,omp60 -fopenmp-simd -fopenmp-version=60 -o - %s -Wuninitialized
  21 // RUN: %clang_cc1 -verify=expected,omp60 -fopenmp-simd -fopenmp-version=60 -std=c++98 -o - %s -Wuninitialized
  22 // RUN: %clang_cc1 -verify=expected,omp60 -fopenmp-simd -fopenmp-version=60 -std=c++11 -o - %s -Wuninitialized
  23
  24 extern int omp_default_mem_alloc;
  25 void xxx(int argc) {
  26   int fp; // expected-note {{initialize the variable 'fp' to silence this warning}}
  27 #pragma omp parallel for reduction(+:fp) // expected-warning {{variable 'fp' is uninitialized when used here}}
  28   for (int i = 0; i < 10; ++i)
  29     ;
  30 }
  31
  32 void foo() {
  33 }
  34
  35 bool foobool(int argc) {
  36   return argc;
  37 }
  38
  39 void foobar(int &ref) {
  40 #pragma omp parallel for reduction(+:ref)
  41   for (int i = 0; i < 10; ++i)
  42     foo();
  43 }
  44
  45 struct S1; // expected-note {{declared here}} expected-note 4 {{forward declaration of 'S1'}}
  46 extern S1 a;
  47 class S2 {
  48   mutable int a;
  49   S2 &operator+(const S2 &arg) { return (*this); } // expected-note 3 {{implicitly declared private here}}
  50
  51 public:
  52   S2() : a(0) {}
  53   S2(S2 &s2) : a(s2.a) {}
  54   static float S2s; // expected-note 2 {{static data member is predetermined as shared}}
  55   static const float S2sc; // expected-note 2 {{'S2sc' declared here}}
  56 };
  57 const float S2::S2sc = 0;
  58 S2 b;                     // expected-note 3 {{'b' defined here}}
  59 const S2 ba[5];           // expected-note 2 {{'ba' defined here}}
  60 class S3 {
  61   int a;
  62
  63 public:
  64   int b;
  65   S3() : a(0) {}
  66   S3(const S3 &s3) : a(s3.a) {}
  67   S3 operator+(const S3 &arg1) { return arg1; }
  68 };
  69 int operator+(const S3 &arg1, const S3 &arg2) { return 5; }
  70 S3 c;               // expected-note 3 {{'c' defined here}}
  71 const S3 ca[5];     // expected-note 2 {{'ca' defined here}}
  72 extern const int f; // expected-note 4 {{'f' declared here}}
  73 class S4 {
  74   int a;
  75   S4(); // expected-note {{implicitly declared private here}}
  76   S4(const S4 &s4);
  77   S4 &operator+(const S4 &arg) { return (*this); }
  78
  79 public:
  80   S4(int v) : a(v) {}
  81 };
  82 S4 &operator&=(S4 &arg1, S4 &arg2) { return arg1; }
  83 class S5 {
  84   int a;
  85   S5() : a(0) {} // expected-note {{implicitly declared private here}}
  86   S5(const S5 &s5) : a(s5.a) {}
  87   S5 &operator+(const S5 &arg);
  88
  89 public:
  90   S5(int v) : a(v) {}
  91   void foo() {
  92 #pragma omp parallel private(a) // expected-note {{defined as private}}
  93 #pragma omp for reduction(+:a) // expected-error {{reduction variable must be shared}}
  94   for (int i = 0; i < 10; ++i)
  95     ::foo();
  96 #pragma omp parallel for reduction(inscan, +:a)
  97   for (int i = 0; i < 10; ++i) {
  98 #pragma omp scan inclusive(a)
  99   }
 100 #pragma omp parallel for reduction(inscan, +:a)
 101   for (int i = 0; i < 10; ++i) {
 102 #pragma omp scan exclusive(a)
 103   }
 104   }
 105 };
 106 class S6 { // expected-note 3 {{candidate function (the implicit copy assignment operator) not viable: no known conversion from 'int' to 'const S6' for 1st argument}}
 107 #if __cplusplus >= 201103L // C++11 or later
 108 // expected-note@-2 3 {{candidate function (the implicit move assignment operator) not viable}}
 109 #endif
 110   int a;
 111
 112 public:
 113   S6() : a(6) {}
 114   operator int() { return 6; }
 115 } o;
 116
 117 S3 h, k;
 118 #pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
 119
 120 template <class T>       // expected-note {{declared here}}
 121 T tmain(T argc) {
 122   const T d = T();       // expected-note 4 {{'d' defined here}}
 123   const T da[5] = {T()}; // expected-note 2 {{'da' defined here}}
 124   T qa[5] = {T()};
 125   T i, z;
 126   T &j = i;                        // expected-note 4 {{'j' defined here}}
 127   S3 &p = k;                       // expected-note 2 {{'p' defined here}}
 128   const T &r = da[(int)i];         // expected-note 2 {{'r' defined here}}
 129   T &q = qa[(int)i];               // expected-note 2 {{'q' defined here}}
 130   T fl;
 131 #pragma omp parallel for reduction // expected-error {{expected '(' after 'reduction'}}
 132   for (int i = 0; i < 10; ++i)
 133     foo();
 134 #pragma omp parallel for reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp parallel for' are ignored}}
 135   for (int i = 0; i < 10; ++i)
 136     foo();
 137 #pragma omp parallel for reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
 138   for (int i = 0; i < 10; ++i)
 139     foo();
 140 #pragma omp parallel for reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
 141   for (int i = 0; i < 10; ++i)
 142     foo();
 143 #pragma omp parallel for reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
 144   for (int i = 0; i < 10; ++i)
 145     foo();
 146 #pragma omp parallel for reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
 147   for (int i = 0; i < 10; ++i)
 148     foo();
 149 #pragma omp parallel for reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
 150   for (int i = 0; i < 10; ++i)
 151     foo();
 152 #pragma omp parallel for reduction(& : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{invalid operands to binary expression ('float' and 'float')}}
 153   for (int i = 0; i < 10; ++i)
 154     foo();
 155 #pragma omp parallel for reduction(| : argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{invalid operands to binary expression ('float' and 'float')}}
 156   for (int i = 0; i < 10; ++i)
 157     foo();
 158 #pragma omp parallel for reduction(|| : argc ? i : argc) // expected-error 2 {{expected variable name, array element or array section}}
 159   for (int i = 0; i < 10; ++i)
 160     foo();
 161 #pragma omp parallel for reduction(foo : argc) //omp51-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max' or declare reduction for type 'float'}} omp51-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max' or declare reduction for type 'int'}} omp52-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max' or declare reduction for type 'float'}} omp52-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max' or declare reduction for type 'int'}} omp60-error {{incorrect reduction identifier, expected one of '+', '*', '&', '|', '^', '&&', '||', 'min' or 'max' or declare reduction for type 'float'}} omp60-error {{incorrect reduction identifier, expected one of '+', '*', '&', '|', '^', '&&', '||', 'min' or 'max' or declare reduction for type 'int'}}
 162   for (int i = 0; i < 10; ++i)
 163     foo();
 164 #pragma omp parallel for reduction(&& : argc) 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 '('}}
 165   for (int i = 0; i < 10; ++i)
 166     foo();
 167 #pragma omp parallel for reduction(^ : T) // expected-error {{'T' does not refer to a value}}
 168   for (int i = 0; i < 10; ++i)
 169     foo();
 170 #pragma omp parallel for reduction(+ : z, a, b, c, d, f) // expected-error {{a reduction list item with incomplete type 'S1'}} expected-error 3 {{const-qualified variable cannot be reduction}} expected-error 2 {{'operator+' is a private member of 'S2'}}
 171   for (int i = 0; i < 10; ++i)
 172     foo();
 173 #pragma omp parallel for reduction(min : a, b, c, d, f) // expected-error {{a reduction list item with incomplete type 'S1'}} expected-error 4 {{arguments of OpenMP clause 'reduction' for 'min' or 'max' must be of arithmetic type}} expected-error 3 {{const-qualified variable cannot be reduction}}
 174   for (int i = 0; i < 10; ++i)
 175     foo();
 176 #pragma omp parallel for reduction(max : h.b) // expected-error {{expected variable name, array element or array section}}
 177   for (int i = 0; i < 10; ++i)
 178     foo();
 179 #pragma omp parallel for reduction(+ : ba) // expected-error {{const-qualified variable cannot be reduction}}
 180   for (int i = 0; i < 10; ++i)
 181     foo();
 182 #pragma omp parallel for reduction(* : ca) // expected-error {{const-qualified variable cannot be reduction}}
 183   for (int i = 0; i < 10; ++i)
 184     foo();
 185 #pragma omp parallel for reduction(- : da) // expected-error 2 {{const-qualified variable cannot be reduction}} omp52-warning 3 {{minus(-) operator for reductions is deprecated; use + or user defined reduction instead}}
 186   for (int i = 0; i < 10; ++i)
 187     foo();
 188 #pragma omp parallel for reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
 189   for (int i = 0; i < 10; ++i)
 190     foo();
 191 #pragma omp parallel for reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
 192   for (int i = 0; i < 10; ++i)
 193     foo();
 194 #pragma omp parallel for reduction(&& : S2::S2sc) // expected-error {{const-qualified variable cannot be reduction}}
 195   for (int i = 0; i < 10; ++i)
 196     foo();
 197 #pragma omp parallel for reduction(+ : h, k) // expected-error {{threadprivate or thread local variable cannot be reduction}}
 198   for (int i = 0; i < 10; ++i)
 199     foo();
 200 #pragma omp parallel for reduction(+ : o) // expected-error 2 {{no viable overloaded '='}}
 201   for (int i = 0; i < 10; ++i)
 202     foo();
 203 #pragma omp parallel for private(i), reduction(+ : j), reduction(+ : q) // expected-error 4 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
 204   for (int i = 0; i < 10; ++i)
 205     foo();
 206 #pragma omp parallel private(k)
 207 #pragma omp parallel for reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
 208   for (int i = 0; i < 10; ++i)
 209     foo();
 210 #pragma omp parallel for reduction(+ : p), reduction(+ : p) // expected-error 2 {{variable can appear only once in OpenMP 'reduction' clause}} expected-note 2 {{previously referenced here}}
 211   for (int i = 0; i < 10; ++i)
 212     foo();
 213 #pragma omp parallel for reduction(+ : r) // expected-error 2 {{const-qualified variable cannot be reduction}}
 214   for (int i = 0; i < 10; ++i)
 215     foo();
 216 #pragma omp parallel shared(i)
 217 #pragma omp parallel reduction(min : i)
 218 #pragma omp parallel for reduction(max : j) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
 219   for (int i = 0; i < 10; ++i)
 220     foo();
 221 #pragma omp parallel private(fl)
 222 #pragma omp parallel for reduction(+ : fl)
 223   for (int i = 0; i < 10; ++i)
 224     foo();
 225 #pragma omp parallel reduction(* : fl)
 226 #pragma omp parallel for reduction(+ : fl)
 227   for (int i = 0; i < 10; ++i)
 228     foo();
 229
 230   return T();
 231 }
 232
 233 namespace A {
 234 double x;
 235 #pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
 236 }
 237 namespace B {
 238 using A::x;
 239 }
 240
 241 int main(int argc, char **argv) {
 242   const int d = 5;       // expected-note 2 {{'d' defined here}}
 243   const int da[5] = {0}; // expected-note {{'da' defined here}}
 244   int qa[5] = {0};
 245   S4 e(4);
 246   S5 g(5);
 247   int i, z;
 248   int &j = i;                      // expected-note 2 {{'j' defined here}}
 249   S3 &p = k;                       // expected-note 2 {{'p' defined here}}
 250   const int &r = da[i];            // expected-note {{'r' defined here}}
 251   int &q = qa[i];                  // expected-note {{'q' defined here}}
 252   float fl;
 253 #pragma omp parallel for reduction // expected-error {{expected '(' after 'reduction'}}
 254   for (int i = 0; i < 10; ++i)
 255     foo();
 256 #pragma omp parallel for reduction + // expected-error {{expected '(' after 'reduction'}} expected-warning {{extra tokens at the end of '#pragma omp parallel for' are ignored}}
 257   for (int i = 0; i < 10; ++i)
 258     foo();
 259 #pragma omp parallel for reduction( // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected ')'}} expected-note {{to match this '('}}
 260   for (int i = 0; i < 10; ++i)
 261     foo();
 262 #pragma omp parallel for reduction(- // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
 263   for (int i = 0; i < 10; ++i)
 264     foo();
 265 #pragma omp parallel for reduction() // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
 266   for (int i = 0; i < 10; ++i)
 267     foo();
 268 #pragma omp parallel for reduction(*) // expected-warning {{missing ':' after reduction identifier - ignoring}} expected-error {{expected expression}}
 269   for (int i = 0; i < 10; ++i)
 270     foo();
 271 #pragma omp parallel for reduction(\) // expected-error {{expected unqualified-id}} expected-warning {{missing ':' after reduction identifier - ignoring}}
 272   for (int i = 0; i < 10; ++i)
 273     foo();
 274 #pragma omp parallel for reduction(foo : argc // expected-error {{expected ')'}} expected-note {{to match this '('}} omp45-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max'}} omp51-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max'}} omp52-error {{incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', '&&', '||', 'min' or 'max'}}  omp60-error {{incorrect reduction identifier, expected one of '+', '*', '&', '|', '^', '&&', '||', 'min' or 'max'}}
 275   for (int i = 0; i < 10; ++i)
 276     foo();
 277 #pragma omp parallel for reduction(| : argc, // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
 278   for (int i = 0; i < 10; ++i)
 279     foo();
 280 #pragma omp parallel for reduction(|| : argc > 0 ? argv[1] : argv[2]) // expected-error {{expected variable name, array element or array section}}
 281   for (int i = 0; i < 10; ++i)
 282     foo();
 283 #pragma omp parallel for reduction(~ : argc) // expected-error {{expected unqualified-id}}
 284   for (int i = 0; i < 10; ++i)
 285     foo();
 286 #pragma omp parallel for reduction(&& : argc)
 287   for (int i = 0; i < 10; ++i)
 288     foo();
 289 #pragma omp parallel for reduction(^ : S1) // expected-error {{'S1' does not refer to a value}}
 290   for (int i = 0; i < 10; ++i)
 291     foo();
 292 #pragma omp parallel for reduction(+ : z, a, b, c, d, f) // expected-error {{a reduction list item with incomplete type 'S1'}} expected-error 2 {{const-qualified variable cannot be reduction}} expected-error {{'operator+' is a private member of 'S2'}}
 293   for (int i = 0; i < 10; ++i)
 294     foo();
 295 #pragma omp parallel for reduction(min : a, b, c, d, f) // expected-error {{a reduction list item with incomplete type 'S1'}} expected-error 2 {{arguments of OpenMP clause 'reduction' for 'min' or 'max' must be of arithmetic type}} expected-error 2 {{const-qualified variable cannot be reduction}}
 296   for (int i = 0; i < 10; ++i)
 297     foo();
 298 #pragma omp parallel for reduction(max : h.b) // expected-error {{expected variable name, array element or array section}}
 299   for (int i = 0; i < 10; ++i)
 300     foo();
 301 #pragma omp parallel for reduction(+ : ba) // expected-error {{const-qualified variable cannot be reduction}}
 302   for (int i = 0; i < 10; ++i)
 303     foo();
 304 #pragma omp parallel for reduction(* : ca) // expected-error {{const-qualified variable cannot be reduction}}
 305   for (int i = 0; i < 10; ++i)
 306     foo();
 307 #pragma omp parallel for reduction(- : da) // expected-error {{const-qualified variable cannot be reduction}} omp52-warning {{minus(-) operator for reductions is deprecated; use + or user defined reduction instead}}
 308   for (int i = 0; i < 10; ++i)
 309     foo();
 310 #pragma omp parallel for reduction(^ : fl) // expected-error {{invalid operands to binary expression ('float' and 'float')}}
 311   for (int i = 0; i < 10; ++i)
 312     foo();
 313 #pragma omp parallel for reduction(&& : S2::S2s) // expected-error {{shared variable cannot be reduction}}
 314   for (int i = 0; i < 10; ++i)
 315     foo();
 316 #pragma omp parallel for reduction(&& : S2::S2sc) // expected-error {{const-qualified variable cannot be reduction}}
 317   for (int i = 0; i < 10; ++i)
 318     foo();
 319 #pragma omp parallel for reduction(& : e, g) // expected-error {{calling a private constructor of class 'S4'}} expected-error {{calling a private constructor of class 'S5'}} expected-error {{invalid operands to binary expression ('S5' and 'S5')}}
 320   for (int i = 0; i < 10; ++i)
 321     foo();
 322 #pragma omp parallel for reduction(+ : h, k, B::x) // expected-error 2 {{threadprivate or thread local variable cannot be reduction}}
 323   for (int i = 0; i < 10; ++i)
 324     foo();
 325 #pragma omp parallel for reduction(+ : o) // expected-error {{no viable overloaded '='}}
 326   for (int i = 0; i < 10; ++i)
 327     foo();
 328 #pragma omp parallel for private(i), reduction(+ : j), reduction(+ : q) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
 329   for (int i = 0; i < 10; ++i)
 330     foo();
 331 #pragma omp parallel private(k)
 332 #pragma omp parallel for reduction(+ : p), reduction(+ : p) // expected-error 2 {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
 333   for (int i = 0; i < 10; ++i)
 334     foo();
 335 #pragma omp parallel for reduction(+ : p), reduction(+ : p) // expected-error {{variable can appear only once in OpenMP 'reduction' clause}} expected-note {{previously referenced here}}
 336   for (int i = 0; i < 10; ++i)
 337     foo();
 338 #pragma omp parallel for reduction(+ : r) // expected-error {{const-qualified variable cannot be reduction}}
 339   for (int i = 0; i < 10; ++i)
 340     foo();
 341 #pragma omp parallel shared(i)
 342 #pragma omp parallel reduction(min : i)
 343 #pragma omp parallel for reduction(max : j) // expected-error {{argument of OpenMP clause 'reduction' must reference the same object in all threads}}
 344   for (int i = 0; i < 10; ++i)
 345     foo();
 346 #pragma omp parallel private(fl)
 347 #pragma omp parallel for reduction(+ : fl)
 348   for (int i = 0; i < 10; ++i)
 349     foo();
 350 #pragma omp parallel reduction(* : fl)
 351 #pragma omp parallel for reduction(+ : fl)
 352   for (int i = 0; i < 10; ++i)
 353     foo();
 354   static int m;
 355 #pragma omp parallel for reduction(+ : m) // OK
 356   for (int i = 0; i < 10; ++i)
 357     m++;
 358 #pragma omp parallel for reduction(task, + : m) // OK
 359   for (int i = 0; i < 10; ++i)
 360     m++;
 361
 362 #pragma omp parallel for reduction(inscan, + : m) reduction(*: fl) reduction(default, &&: j) // expected-error 2 {{expected 'reduction' clause with the 'inscan' modifier}} expected-note 2 {{'reduction' clause with 'inscan' modifier is used here}}
 363   for (int i = 0; i < 10; ++i) {
 364 #pragma omp scan exclusive(m)
 365     m++;
 366   }
 367 #pragma omp parallel for reduction(inscan, + : m, fl, j) // expected-error 2 {{the inscan reduction list item must appear as a list item in an 'inclusive' or 'exclusive' clause on an inner 'omp scan' directive}}
 368   for (int i = 0; i < 10; ++i) {
 369 #pragma omp scan exclusive(m)
 370     m++;
 371   }
 372 #pragma omp parallel for reduction(inscan, + : m, fl, j) // expected-error 2 {{the inscan reduction list item must appear as a list item in an 'inclusive' or 'exclusive' clause on an inner 'omp scan' directive}}
 373   for (int i = 0; i < 10; ++i) {
 374 #pragma omp scan inclusive(m)
 375     m++;
 376   }
 377
 378   return tmain(argc) + tmain(fl); // expected-note {{in instantiation of function template specialization 'tmain<int>' requested here}} expected-note {{in instantiation of function template specialization 'tmain<float>' requested here}}
 379 }