clang/test/OpenMP/masked_messages_attr.cpp

   1 // RUN: %clang_cc1 -verify -fopenmp %s -Wuninitialized
   2 // RUN: %clang_cc1 -verify -fopenmp-simd %s -Wuninitialized
   3
   4 void xxx(int argc) {
   5   int x; // expected-note {{initialize the variable 'x' to silence this warning}}
   6   [[omp::directive(masked)]]
   7   argc = x; // expected-warning {{variable 'x' is uninitialized when used here}}
   8 }
   9
  10 void yyy(int argc) {
  11   int x; // expected-note {{initialize the variable 'x' to silence this warning}}
  12   [[omp::directive(masked filter(1))]]
  13   argc = x; // expected-warning {{variable 'x' is uninitialized when used here}}
  14 }
  15
  16 int foo();
  17
  18 int main() {
  19   [[omp::directive(masked)]]
  20   ;
  21   [[omp::directive(masked filter(1) filter(2))]] // expected-error {{directive '#pragma omp masked' cannot contain more than one 'filter' clause}}
  22   ;
  23   int x,y,z;
  24   [[omp::directive(masked filter(x) filter(y) filter(z))]] // expected-error 2 {{directive '#pragma omp masked' cannot contain more than one 'filter' clause}}
  25   ;
  26   [[omp::directive(masked nowait)]] // expected-error {{unexpected OpenMP clause 'nowait' in directive '#pragma omp masked'}}
  27   [[omp::directive(masked unknown)]] // expected-warning {{extra tokens at the end of '#pragma omp masked' are ignored}}
  28   foo();
  29   {
  30         [[omp::directive(masked)]]
  31   } // expected-error {{expected statement}}
  32   {
  33         [[omp::directive(masked filter(2))]]
  34   } // expected-error {{expected statement}}
  35   [[omp::directive(for)]]
  36   for (int i = 0; i < 10; ++i) {
  37     foo();
  38     [[omp::directive(masked filter(1))]] // expected-error {{region cannot be closely nested inside 'for' region}}
  39     foo();
  40   }
  41   [[omp::directive(sections)]]
  42   {
  43     foo();
  44     [[omp::directive(masked)]] // expected-error {{region cannot be closely nested inside 'sections' region}}
  45     foo();
  46   }
  47   [[omp::directive(single)]]
  48   for (int i = 0; i < 10; ++i) {
  49     foo();
  50     [[omp::directive(masked allocate(i))]] // expected-error {{region cannot be closely nested inside 'single' region}} expected-error {{unexpected OpenMP clause 'allocate' in directive '#pragma omp masked'}}
  51     foo();
  52   }
  53   [[omp::directive(masked)]]
  54   for (int i = 0; i < 10; ++i) {
  55     foo();
  56     [[omp::directive(masked)]]
  57     foo();
  58   }
  59   [[omp::directive(for ordered)]]
  60   for (int i = 0; i < 10; ++i)
  61   [[omp::directive(masked)]] // expected-error {{region cannot be closely nested inside 'for' region}}
  62   {
  63     foo();
  64   }
  65
  66   return 0;
  67 }
  68
  69 int foo() {
  70   L1: // expected-note {{jump exits scope of OpenMP structured block}}
  71     foo();
  72   [[omp::directive(masked filter(0))]]
  73   {
  74     foo();
  75     goto L1; // expected-error {{cannot jump from this goto statement to its label}}
  76   }
  77   goto L2; // expected-error {{cannot jump from this goto statement to its label}}
  78   [[omp::directive(masked filter(-2))]]
  79   { // expected-note {{jump bypasses OpenMP structured block}}
  80     L2:
  81     foo();
  82   }
  83
  84   return 0;
  85 }
  86