LI82125: INTERNAL COMPILER ERROR WITH OPENMP DECLARE REDUCTION

APAR status

• Closed as program error.

Error description

• xlc++ Internal Compiler Error with OpenMP declare reduction for
  test cases that look similar to the following:
  
  class Test
  {
  public:
    int v;
    void test()
    {
  #pragma omp declare reduction(merge : int : omp_out+=omp_in)
  
  #pragma omp parallel reduction(merge: v)
      ;
    }
  };
  
  int main()
  {
    Test t;
    t.test();
  }
  

Local fix

• N/A
  

Problem summary

• USERS AFFECTED:
  Users who have test cases that involve a reduction variable
  which is a struct member may be affected by this issue.
  
  PROBLEM DESCRIPTION:
  The compiler did not handle the reduction clause of a struct
  member.
  

Problem conclusion

• The compiler has been fixed by adding handling of struct member
  in a reduction clause
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  XL C/C++ LINUX

• Fixed component ID

  5725C7310

Applicable component levels