clang/test/OpenMP/target_parallel_messages.cpp

   1 // RUN: %clang_cc1 -verify -fopenmp -std=c++11 -o - %s -Wuninitialized
   2 // RUN: not %clang_cc1 -fopenmp -std=c++11 -fopenmp-targets=aaa-bbb-ccc-ddd -o - %s 2>&1 | FileCheck %s
   3
   4 // RUN: %clang_cc1 -verify -fopenmp-simd -std=c++11 -o - %s -Wuninitialized
   5 // CHECK: error: OpenMP target is invalid: 'aaa-bbb-ccc-ddd'
   6
   7 void xxx(int argc) {
   8   int x; // expected-note {{initialize the variable 'x' to silence this warning}}
   9 #pragma omp target parallel
  10   argc = x; // expected-warning {{variable 'x' is uninitialized when used here}}
  11 }
  12
  13 void foo() {
  14 }
  15
  16 static int pvt;
  17 #pragma omp threadprivate(pvt)
  18
  19 #pragma omp target parallel // expected-error {{unexpected OpenMP directive '#pragma omp target parallel'}}
  20
  21 int main(int argc, char **argv) {
  22   #pragma omp target parallel { // expected-warning {{extra tokens at the end of '#pragma omp target parallel' are ignored}}
  23   foo();
  24   #pragma omp target parallel ( // expected-warning {{extra tokens at the end of '#pragma omp target parallel' are ignored}}
  25   foo();
  26   #pragma omp target parallel [ // expected-warning {{extra tokens at the end of '#pragma omp target parallel' are ignored}}
  27   foo();
  28   #pragma omp target parallel ] // expected-warning {{extra tokens at the end of '#pragma omp target parallel' are ignored}}
  29   foo();
  30   #pragma omp target parallel ) // expected-warning {{extra tokens at the end of '#pragma omp target parallel' are ignored}}
  31   foo();
  32   #pragma omp target parallel } // expected-warning {{extra tokens at the end of '#pragma omp target parallel' are ignored}}
  33   foo();
  34   #pragma omp target parallel
  35   foo();
  36   // expected-warning@+1 {{extra tokens at the end of '#pragma omp target parallel' are ignored}}
  37   #pragma omp target parallel unknown()
  38   foo();
  39   L1:
  40     foo();
  41   #pragma omp target parallel
  42   ;
  43   #pragma omp target parallel
  44   {
  45     goto L1; // expected-error {{use of undeclared label 'L1'}}
  46     argc++;
  47   }
  48
  49   for (int i = 0; i < 10; ++i) {
  50     switch(argc) {
  51      case (0):
  52       #pragma omp target parallel
  53       {
  54         foo();
  55         break; // expected-error {{'break' statement not in loop or switch statement}}
  56         continue; // expected-error {{'continue' statement not in loop statement}}
  57       }
  58       default:
  59        break;
  60     }
  61   }
  62
  63   goto L2; // expected-error {{use of undeclared label 'L2'}}
  64   #pragma omp target parallel
  65   L2:
  66   foo();
  67   #pragma omp target parallel
  68   {
  69     return 1; // expected-error {{cannot return from OpenMP region}}
  70   }
  71
  72   [[]] // expected-error {{an attribute list cannot appear here}}
  73   #pragma omp target parallel
  74   for (int n = 0; n < 100; ++n) {}
  75
  76   #pragma omp target parallel copyin(pvt) // expected-error {{unexpected OpenMP clause 'copyin' in directive '#pragma omp target parallel'}}
  77   foo();
  78
  79   #pragma omp target parallel
  80   {
  81 #pragma omp cancel // expected-error {{one of 'for', 'parallel', 'sections' or 'taskgroup' is expected}}
  82 #pragma omp cancellation point // expected-error {{one of 'for', 'parallel', 'sections' or 'taskgroup' is expected}}
  83 #pragma omp cancel for // expected-error {{region cannot be closely nested inside 'target parallel' region}}
  84 #pragma omp cancellation point for // expected-error {{region cannot be closely nested inside 'target parallel' region}}
  85 #pragma omp cancel sections // expected-error {{region cannot be closely nested inside 'target parallel' region}}
  86 #pragma omp cancellation point sections // expected-error {{region cannot be closely nested inside 'target parallel' region}}
  87 #pragma omp cancel taskgroup // expected-error {{region cannot be closely nested inside 'target parallel' region}}
  88 #pragma omp cancellation point taskgroup // expected-error {{region cannot be closely nested inside 'target parallel' region}}
  89 #pragma omp cancel parallel
  90 #pragma omp cancellation point parallel
  91   }
  92
  93   return 0;
  94 }
  95