clang/test/OpenMP/tile_messages.cpp

   1 // RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -std=c++17 -fopenmp -fsyntax-only -Wuninitialized -verify %s
   2
   3 void func() {
   4
   5   // expected-error@+1 {{expected '('}}
   6   #pragma omp tile sizes
   7     ;
   8
   9   // expected-error@+2 {{expected expression}}
  10   // expected-error@+1 {{expected ')'}} expected-note@+1 {{to match this '('}}
  11   #pragma omp tile  sizes(
  12     ;
  13
  14   // expected-error@+1 {{expected expression}}
  15   #pragma omp tile sizes()
  16     ;
  17
  18   // expected-error@+1 {{expected ')'}} expected-note@+1 {{to match this '('}}
  19   #pragma omp tile sizes(5
  20     for (int i = 0; i < 7; ++i);
  21
  22   // expected-error@+2 {{expected expression}}
  23   // expected-error@+1 {{expected ')'}} expected-note@+1 {{to match this '('}}
  24   #pragma omp tile sizes(5,
  25     ;
  26
  27   // expected-error@+1 {{expected expression}}
  28   #pragma omp tile sizes(5,)
  29     ;
  30
  31   // expected-error@+2 {{expected expression}}
  32   // expected-error@+1 {{expected ')'}} expected-note@+1 {{to match this '('}}
  33   #pragma omp tile sizes(5+
  34     ;
  35
  36   // expected-error@+1 {{expected expression}}
  37   #pragma omp tile sizes(5+)
  38     ;
  39
  40   // expected-error@+1 {{expected expression}}
  41   #pragma omp tile sizes(for)
  42     ;
  43
  44   // expected-error@+1 {{argument to 'sizes' clause must be a strictly positive integer value}}
  45   #pragma omp tile sizes(0)
  46     ;
  47
  48   // expected-error@+4 {{expression is not an integral constant expression}}
  49   // expected-note@+3 {{read of non-const variable 'a' is not allowed in a constant expression}}
  50   // expected-note@+1 {{declared here}}
  51   int a;
  52   #pragma omp tile sizes(a)
  53     ;
  54
  55   // expected-warning@+2 {{extra tokens at the end of '#pragma omp tile' are ignored}}
  56   // expected-error@+1 {{directive '#pragma omp tile' requires the 'sizes' clause}}
  57   #pragma omp tile foo
  58     ;
  59
  60   // expected-error@+1 {{directive '#pragma omp tile' cannot contain more than one 'sizes' clause}}
  61   #pragma omp tile sizes(5) sizes(5)
  62   for (int i = 0; i < 7; ++i)
  63     ;
  64
  65   // expected-error@+1 {{unexpected OpenMP clause 'collapse' in directive '#pragma omp tile'}}
  66   #pragma omp tile sizes(5) collapse(2)
  67   for (int i = 0; i < 7; ++i)
  68     ;
  69
  70   {
  71     // expected-error@+2 {{expected statement}}
  72     #pragma omp tile sizes(5)
  73   }
  74
  75   // expected-error@+2 {{statement after '#pragma omp tile' must be a for loop}}
  76   #pragma omp tile sizes(5)
  77   int b = 0;
  78
  79   // expected-error@+3 {{statement after '#pragma omp tile' must be a for loop}}
  80   #pragma omp tile sizes(5,5)
  81   for (int i = 0; i < 7; ++i)
  82     ;
  83
  84   // expected-error@+2 {{statement after '#pragma omp tile' must be a for loop}}
  85   #pragma omp tile sizes(5,5)
  86   for (int i = 0; i < 7; ++i) {
  87     int k = 3;
  88     for (int j = 0; j < 7; ++j)
  89       ;
  90   }
  91
  92   // expected-error@+3 {{expected loop invariant expression}}
  93   #pragma omp tile sizes(5,5)
  94   for (int i = 0; i < 7; ++i)
  95     for (int j = i; j < 7; ++j)
  96       ;
  97
  98   // expected-error@+3 {{expected loop invariant expression}}
  99   #pragma omp tile sizes(5,5)
 100   for (int i = 0; i < 7; ++i)
 101     for (int j = 0; j < i; ++j)
 102       ;
 103
 104   // expected-error@+3 {{expected loop invariant expression}}
 105   #pragma omp tile sizes(5,5)
 106   for (int i = 0; i < 7; ++i)
 107     for (int j = 0; j < i; ++j)
 108       ;
 109
 110   // expected-error@+5 {{expected 3 for loops after '#pragma omp for', but found only 2}}
 111   // expected-note@+1 {{as specified in 'collapse' clause}}
 112   #pragma omp for collapse(3)
 113   #pragma omp tile sizes(5)
 114   for (int i = 0; i < 7; ++i)
 115     ;
 116
 117   // expected-error@+2 {{statement after '#pragma omp tile' must be a for loop}}
 118   #pragma omp tile sizes(5)
 119   #pragma omp for
 120   for (int i = 0; i < 7; ++i)
 121     ;
 122
 123   // expected-error@+2 {{condition of OpenMP for loop must be a relational comparison ('<', '<=', '>', '>=', or '!=') of loop variable 'i'}}
 124   #pragma omp tile sizes(5)
 125   for (int i = 0; i/3<7; ++i)
 126     ;
 127 }