clang/test/OpenMP/for_simd_collapse_messages.cpp

   1 // RUN: %clang_cc1 -verify -fopenmp %s -Wuninitialized
   2 // RUN: %clang_cc1 -verify -fopenmp -std=c++98 %s -Wuninitialized
   3 // RUN: %clang_cc1 -verify -fopenmp -std=c++11 %s -Wuninitialized
   4
   5 // RUN: %clang_cc1 -verify -fopenmp-simd %s -Wuninitialized
   6 // RUN: %clang_cc1 -verify -fopenmp-simd -std=c++98 %s -Wuninitialized
   7 // RUN: %clang_cc1 -verify -fopenmp-simd -std=c++11 %s -Wuninitialized
   8
   9 // expected-note@* 0+{{declared here}}
  10
  11 void foo() {
  12 }
  13
  14 bool foobool(int argc) {
  15   return argc;
  16 }
  17
  18 struct S1;
  19
  20 template <class T, typename S, int N, int ST>
  21 T tmain(T argc, S **argv) {
  22   #pragma omp for simd collapse // expected-error {{expected '(' after 'collapse'}}
  23   for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
  24   #pragma omp for simd collapse ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  25   for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
  26   #pragma omp for simd collapse () // expected-error {{expected expression}}
  27   for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
  28   // expected-error@+2 {{expected ')'}} expected-note@+2 {{to match this '('}}
  29   // expected-error@+1 2 {{integral constant expression}} expected-note@+1 0+{{constant expression}}
  30   #pragma omp for simd collapse (argc
  31   for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
  32   // expected-error@+1 2 {{argument to 'collapse' clause must be a strictly positive integer value}}
  33   #pragma omp for simd collapse (ST // expected-error {{expected ')'}} expected-note {{to match this '('}}
  34   for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
  35   #pragma omp for simd collapse (1)) // expected-warning {{extra tokens at the end of '#pragma omp for simd' are ignored}}
  36   for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
  37   #pragma omp for simd collapse ((ST > 0) ? 1 + ST : 2) // expected-note 2 {{as specified in 'collapse' clause}}
  38   for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST]; // expected-error 2 {{expected 2 for loops after '#pragma omp for simd', but found only 1}}
  39   // expected-error@+3 2 {{directive '#pragma omp for simd' cannot contain more than one 'collapse' clause}}
  40   // expected-error@+2 {{argument to 'collapse' clause must be a strictly positive integer value}}
  41   // expected-error@+1 2 {{integral constant expression}} expected-note@+1 0+{{constant expression}}
  42   #pragma omp for simd collapse (foobool(argc)), collapse (true), collapse (-5)
  43   for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
  44   #pragma omp for simd collapse (S) // expected-error {{'S' does not refer to a value}}
  45   for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
  46 #if __cplusplus <= 199711L
  47   // expected-error@+4 2 {{integral constant expression}} expected-note@+4 0+{{constant expression}}
  48 #else
  49   // expected-error@+2 2 {{integral constant expression must have integral or unscoped enumeration type, not 'char *'}}
  50 #endif
  51   #pragma omp for simd collapse (argv[1]=2) // expected-error {{expected ')'}} expected-note {{to match this '('}}
  52   for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
  53   #pragma omp for simd collapse (1)
  54   for (int i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
  55   #pragma omp for simd collapse (N) // expected-error {{argument to 'collapse' clause must be a strictly positive integer value}}
  56   for (T i = ST; i < N; i++) argv[0][i] = argv[0][i] - argv[0][i-ST];
  57   #pragma omp for simd collapse (2) // expected-note {{as specified in 'collapse' clause}}
  58   foo(); // expected-error {{expected 2 for loops after '#pragma omp for simd'}}
  59   return argc;
  60 }
  61
  62 int main(int argc, char **argv) {
  63   #pragma omp for simd collapse // expected-error {{expected '(' after 'collapse'}}
  64   for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4];
  65   #pragma omp for simd collapse ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  66   for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4];
  67   #pragma omp for simd collapse () // expected-error {{expected expression}}
  68   for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4];
  69   #pragma omp for simd collapse (4 // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-note {{as specified in 'collapse' clause}}
  70   for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4]; // expected-error {{expected 4 for loops after '#pragma omp for simd', but found only 1}}
  71   #pragma omp for simd collapse (2+2)) // expected-warning {{extra tokens at the end of '#pragma omp for simd' are ignored}}  expected-note {{as specified in 'collapse' clause}}
  72   for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4]; // expected-error {{expected 4 for loops after '#pragma omp for simd', but found only 1}}
  73   // expected-error@+1 {{integral constant expression}} expected-note@+1 0+{{constant expression}}
  74   #pragma omp for simd collapse (foobool(1) > 0 ? 1 : 2)
  75   for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4];
  76   // expected-error@+3 {{integral constant expression}} expected-note@+3 0+{{constant expression}}
  77   // expected-error@+2 2 {{directive '#pragma omp for simd' cannot contain more than one 'collapse' clause}}
  78   // expected-error@+1 {{argument to 'collapse' clause must be a strictly positive integer value}}
  79   #pragma omp for simd collapse (foobool(argc)), collapse (true), collapse (-5)
  80   for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4];
  81   #pragma omp for simd collapse (S1) // expected-error {{'S1' does not refer to a value}}
  82   for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4];
  83 #if __cplusplus <= 199711L
  84   // expected-error@+4 {{integral constant expression}} expected-note@+4 0+{{constant expression}}
  85 #else
  86   // expected-error@+2 {{integral constant expression must have integral or unscoped enumeration type, not 'char *'}}
  87 #endif
  88   #pragma omp for simd collapse (argv[1]=2) // expected-error {{expected ')'}} expected-note {{to match this '('}}
  89   for (int i = 4; i < 12; i++) argv[0][i] = argv[0][i] - argv[0][i-4];
  90   // expected-error@+3 {{statement after '#pragma omp for simd' must be a for loop}}
  91   // expected-note@+1 {{in instantiation of function template specialization 'tmain<int, char, -1, -2>' requested here}}
  92   #pragma omp for simd collapse(collapse(tmain<int, char, -1, -2>(argc, argv) // expected-error 2 {{expected ')'}} expected-note 2 {{to match this '('}}
  93   foo();
  94   #pragma omp for simd collapse (2) // expected-note {{as specified in 'collapse' clause}}
  95   foo(); // expected-error {{expected 2 for loops after '#pragma omp for simd'}}
  96   // expected-note@+1 {{in instantiation of function template specialization 'tmain<int, char, 1, 0>' requested here}}
  97   return tmain<int, char, 1, 0>(argc, argv);
  98 }
  99