clang/test/OpenMP/parallel_for_if_messages.cpp

   1 // RUN: %clang_cc1 -verify -fopenmp -fopenmp-version=45 -ferror-limit 100 %s -Wuninitialized
   2
   3 // RUN: %clang_cc1 -verify -fopenmp-simd -fopenmp-version=45 -ferror-limit 100 %s -Wuninitialized
   4
   5 // RUN: %clang_cc1 -verify -fopenmp -ferror-limit 100 %s -Wuninitialized
   6 // RUN: %clang_cc1 -verify -fopenmp-simd -ferror-limit 100 %s -Wuninitialized
   7
   8 void foo() {
   9 }
  10
  11 bool foobool(int argc) {
  12   return argc;
  13 }
  14
  15 void xxx(int argc) {
  16   int cond; // expected-note {{initialize the variable 'cond' to silence this warning}}
  17 #pragma omp parallel for if(cond) // expected-warning {{variable 'cond' is uninitialized when used here}}
  18   for (int i = 0; i < 10; ++i)
  19     ;
  20 }
  21
  22 struct S1; // expected-note {{declared here}}
  23
  24 template <class T, class S> // expected-note {{declared here}}
  25 int tmain(T argc, S **argv) {
  26   T i, z;
  27   #pragma omp parallel for if // expected-error {{expected '(' after 'if'}}
  28   for (i = 0; i < argc; ++i) foo();
  29   #pragma omp parallel for if ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  30   for (i = 0; i < argc; ++i) foo();
  31   #pragma omp parallel for if () // expected-error {{expected expression}}
  32   for (i = 0; i < argc; ++i) foo();
  33   #pragma omp parallel for if (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
  34   for (i = 0; i < argc; ++i) foo();
  35   #pragma omp parallel for if (argc)) // expected-warning {{extra tokens at the end of '#pragma omp parallel for' are ignored}}
  36   for (i = 0; i < argc; ++i) foo();
  37   #pragma omp parallel for if (argc > 0 ? argv[1] : argv[2])
  38   for (i = 0; i < argc; ++i) foo();
  39   #pragma omp parallel for if (foobool(argc)), if (true) // expected-error {{directive '#pragma omp parallel for' cannot contain more than one 'if' clause}}
  40   for (i = 0; i < argc; ++i) foo();
  41   #pragma omp parallel for if (S) // expected-error {{'S' does not refer to a value}}
  42   for (i = 0; i < argc; ++i) foo();
  43   #pragma omp parallel for if (argv[1]=2) // expected-error {{expected ')'}} expected-note {{to match this '('}}
  44   for (i = 0; i < argc; ++i) foo();
  45   #pragma omp parallel for if (argc argc) // expected-error {{expected ')'}} expected-note {{to match this '('}}
  46   for (i = 0; i < argc; ++i) foo();
  47   #pragma omp parallel for if(argc/z)
  48   for (i = 0; i < argc; ++i) foo();
  49   #pragma omp parallel for if(parallel // expected-error {{use of undeclared identifier 'parallel'}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  50   for (i = 0; i < argc; ++i) foo();
  51   #pragma omp parallel for if(parallel : // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  52   for (i = 0; i < argc; ++i) foo();
  53   #pragma omp parallel for if(parallel : argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
  54   for (i = 0; i < argc; ++i) foo();
  55   #pragma omp parallel for if(parallel : argc)
  56   for (i = 0; i < argc; ++i) foo();
  57   #pragma omp parallel for if(parallel : argc) if (for:argc) // expected-error {{directive name modifier 'for' is not allowed for '#pragma omp parallel for'}}
  58   for (i = 0; i < argc; ++i) foo();
  59   #pragma omp parallel for if(parallel : argc) if (parallel:argc) // expected-error {{directive '#pragma omp parallel for' cannot contain more than one 'if' clause with 'parallel' name modifier}}
  60   for (i = 0; i < argc; ++i) foo();
  61   #pragma omp parallel for if(parallel : argc) if (argc) // expected-error {{no more 'if' clause is allowed}} expected-note {{previous clause with directive name modifier specified here}}
  62   for (i = 0; i < argc; ++i) foo();
  63
  64   return 0;
  65 }
  66
  67 int main(int argc, char **argv) {
  68   int i,z;
  69   #pragma omp parallel for if // expected-error {{expected '(' after 'if'}}
  70   for (i = 0; i < argc; ++i) foo();
  71   #pragma omp parallel for if ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  72   for (i = 0; i < argc; ++i) foo();
  73   #pragma omp parallel for if () // expected-error {{expected expression}}
  74   for (i = 0; i < argc; ++i) foo();
  75   #pragma omp parallel for if (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
  76   for (i = 0; i < argc; ++i) foo();
  77   #pragma omp parallel for if (argc)) // expected-warning {{extra tokens at the end of '#pragma omp parallel for' are ignored}}
  78   for (i = 0; i < argc; ++i) foo();
  79   #pragma omp parallel for if (argc > 0 ? argv[1] : argv[2])
  80   for (i = 0; i < argc; ++i) foo();
  81   #pragma omp parallel for if (foobool(argc)), if (true) // expected-error {{directive '#pragma omp parallel for' cannot contain more than one 'if' clause}}
  82   for (i = 0; i < argc; ++i) foo();
  83   #pragma omp parallel for if (S1) // expected-error {{'S1' does not refer to a value}}
  84   for (i = 0; i < argc; ++i) foo();
  85   #pragma omp parallel for if (argv[1]=2) // expected-error {{expected ')'}} expected-note {{to match this '('}}
  86   for (i = 0; i < argc; ++i) foo();
  87   #pragma omp parallel for if (argc argc) // expected-error {{expected ')'}} expected-note {{to match this '('}}
  88   for (i = 0; i < argc; ++i) foo();
  89   #pragma omp parallel for if (1 0) // expected-error {{expected ')'}} expected-note {{to match this '('}}
  90   for (i = 0; i < argc; ++i) foo();
  91   #pragma omp parallel for if(if(tmain(argc, argv) // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  92   for (i = 0; i < argc; ++i) foo();
  93   #pragma omp parallel for if(parallel // expected-error {{use of undeclared identifier 'parallel'}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  94   for (i = 0; i < argc; ++i) foo();
  95   #pragma omp parallel for if(parallel : // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
  96   for (i = 0; i < argc; ++i) foo();
  97   #pragma omp parallel for if(parallel : argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
  98   for (i = 0; i < argc; ++i) foo();
  99   #pragma omp parallel for if(parallel : z*argc)
 100   for (i = 0; i < argc; ++i) foo();
 101   #pragma omp parallel for if(parallel : argc) if (for:argc) // expected-error {{directive name modifier 'for' is not allowed for '#pragma omp parallel for'}}
 102   for (i = 0; i < argc; ++i) foo();
 103   #pragma omp parallel for if(parallel : argc) if (parallel:argc) // expected-error {{directive '#pragma omp parallel for' cannot contain more than one 'if' clause with 'parallel' name modifier}}
 104   for (i = 0; i < argc; ++i) foo();
 105   #pragma omp parallel for if(parallel : argc) if (argc) // expected-error {{no more 'if' clause is allowed}} expected-note {{previous clause with directive name modifier specified here}}
 106   for (i = 0; i < argc; ++i) foo();
 107
 108   return tmain(argc, argv);
 109 }