clang/test/OpenMP/critical_messages.cpp

   1 // RUN: %clang_cc1 -verify -fopenmp %s -Wuninitialized
   2
   3 // RUN: %clang_cc1 -verify -fopenmp-simd %s -Wuninitialized
   4
   5 int foo();
   6
   7 void xxx(int argc) {
   8   int x; // expected-note {{initialize the variable 'x' to silence this warning}}
   9 #pragma omp critical
  10   argc = x; // expected-warning {{variable 'x' is uninitialized when used here}}
  11 }
  12
  13 template<typename T, int N>
  14 int tmain(int argc, char **argv) { // expected-note {{declared here}}
  15   #pragma omp critical
  16   ;
  17   #pragma omp critical untied allocate(argc) // expected-error {{unexpected OpenMP clause 'untied' in directive '#pragma omp critical'}} expected-error {{unexpected OpenMP clause 'allocate' in directive '#pragma omp critical'}}
  18   #pragma omp critical unknown // expected-warning {{extra tokens at the end of '#pragma omp critical' are ignored}}
  19   #pragma omp critical ( // expected-error {{expected identifier}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  20   #pragma omp critical ( + // expected-error {{expected identifier}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  21   #pragma omp critical (name2 // expected-error {{expected ')'}} expected-note {{to match this '('}}
  22   #pragma omp critical (name1)
  23   foo();
  24   {
  25     #pragma omp critical
  26   } // expected-error {{expected statement}}
  27   #pragma omp critical (name2) // expected-note {{previous 'critical' region starts here}}
  28   #pragma omp critical
  29   for (int i = 0; i < 10; ++i) {
  30     foo();
  31     #pragma omp parallel
  32     #pragma omp for
  33     for (int j = 0; j < 10; j++) {
  34       foo();
  35       #pragma omp critical(name2) // expected-error {{cannot nest 'critical' regions having the same name 'name2'}}
  36       foo();
  37     }
  38   }
  39   #pragma omp critical (name2)
  40   #pragma omp critical
  41   for (int i = 0; i < 10; ++i) {
  42     foo();
  43     #pragma omp parallel
  44     #pragma omp for
  45     for (int j = 0; j < 10; j++) {
  46       #pragma omp critical
  47       foo();
  48     }
  49   }
  50   #pragma omp critical (name2)
  51   #pragma omp critical
  52   for (int i = 0; i < 10; ++i) {
  53     foo();
  54     #pragma omp parallel
  55     #pragma omp for
  56     for (int j = 0; j < 10; j++) {
  57       #pragma omp critical (nam)
  58       foo();
  59     }
  60   }
  61
  62   #pragma omp critical (name2) hint // expected-error {{expected '(' after 'hint'}}
  63   foo();
  64   #pragma omp critical (name2) hint( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  65   foo();
  66   #pragma omp critical (name2) hint(+ // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  67   foo();
  68   #pragma omp critical (name2) hint(argc) // expected-error {{integral constant expression}} expected-note 0+{{constant expression}}
  69   foo();
  70   #pragma omp critical (name) hint(N) // expected-error {{argument to 'hint' clause must be a non-negative integer value}} expected-error {{constructs with the same name must have a 'hint' clause with the same value}} expected-note {{'hint' clause with value '4'}}
  71   foo();
  72   #pragma omp critical hint(N) // expected-error {{the name of the construct must be specified in presence of 'hint' clause}}
  73   foo();
  74
  75   const int omp_lock_hint_none = 0;
  76   #pragma omp critical (name3) hint(omp_lock_hint_none)
  77   foo();
  78   return 0;
  79 }
  80
  81 int main(int argc, char **argv) { // expected-note {{declared here}}
  82   #pragma omp critical
  83   ;
  84   #pragma omp critical untied // expected-error {{unexpected OpenMP clause 'untied' in directive '#pragma omp critical'}}
  85   #pragma omp critical unknown // expected-warning {{extra tokens at the end of '#pragma omp critical' are ignored}}
  86   #pragma omp critical ( // expected-error {{expected identifier}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  87   #pragma omp critical ( + // expected-error {{expected identifier}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  88   #pragma omp critical (name2 // expected-error {{expected ')'}} expected-note {{to match this '('}}
  89   #pragma omp critical (name1)
  90   foo();
  91   {
  92     #pragma omp critical
  93   } // expected-error {{expected statement}}
  94   #pragma omp critical (name2) // expected-note {{previous 'critical' region starts here}}
  95   #pragma omp critical
  96   for (int i = 0; i < 10; ++i) {
  97     foo();
  98     #pragma omp parallel
  99     #pragma omp for
 100     for (int j = 0; j < 10; j++) {
 101       foo();
 102       #pragma omp critical(name2) // expected-error {{cannot nest 'critical' regions having the same name 'name2'}}
 103       foo();
 104     }
 105   }
 106   #pragma omp critical (name2)
 107   #pragma omp critical
 108   for (int i = 0; i < 10; ++i) {
 109     foo();
 110     #pragma omp parallel
 111     #pragma omp for
 112     for (int j = 0; j < 10; j++) {
 113       #pragma omp critical
 114       foo();
 115     }
 116   }
 117   #pragma omp critical (name2)
 118   #pragma omp critical
 119   for (int i = 0; i < 10; ++i) {
 120     foo();
 121     #pragma omp parallel
 122     #pragma omp for
 123     for (int j = 0; j < 10; j++) {
 124       #pragma omp critical (nam)
 125       foo();
 126     }
 127   }
 128
 129   #pragma omp critical (name2) hint // expected-error {{expected '(' after 'hint'}}
 130   foo();
 131   #pragma omp critical (name2) hint( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
 132   foo();
 133   #pragma omp critical (name2) hint(+ // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
 134   foo();
 135   #pragma omp critical (name2) hint(argc) // expected-error {{integral constant expression}} expected-note 0+{{constant expression}}
 136   foo();
 137   #pragma omp critical (name) hint(23) // expected-note {{previous 'hint' clause with value '23'}}
 138   foo();
 139   #pragma omp critical hint(-5) // expected-error {{argument to 'hint' clause must be a non-negative integer value}}
 140   foo();
 141   #pragma omp critical hint(1) // expected-error {{the name of the construct must be specified in presence of 'hint' clause}}
 142   foo();
 143   return tmain<int, 4>(argc, argv) + tmain<float, -5>(argc, argv); // expected-note {{in instantiation of function template specialization 'tmain<float, -5>' requested here}} expected-note {{in instantiation of function template specialization 'tmain<int, 4>' requested here}}
 144 }
 145
 146 int foo() {
 147   L1: // expected-note {{jump exits scope of OpenMP structured block}}
 148     foo();
 149   #pragma omp critical
 150   {
 151     foo();
 152     goto L1; // expected-error {{cannot jump from this goto statement to its label}}
 153   }
 154   goto L2; // expected-error {{cannot jump from this goto statement to its label}}
 155   #pragma omp critical
 156   {  // expected-note {{jump bypasses OpenMP structured block}}
 157     L2:
 158     foo();
 159   }
 160
 161   return 0;
 162  }