LI76099: OMP SYNTAX ERROR WITH STRICT C99 LANGLVL

XL C/C++ for Linux Fix Pack 9 (August 2013 Update) for 11.1
April 2011 Update for XL C/C++ for Linux, V11.1
July 2011 Update for XL C/C++ for Linux, V11.1
October 2011 Update for XL C/C++ for Linux, V11.1
June 2012 Update for XL C/C++ for Linux, V11.1
October 2012 Update for XL C/C++ for Linux, V11.1
XL C/C++ for Linux Fix Pack 8 (June 2013 Update) for 11.1

APAR status

• Closed as program error.

Error description

• A syntax error message is generated when the following test case
  is compiled using -qsmp=omp.
  
  ===== Test Case
  
  void testfor()
  {
    int i,j;
  #pragma omp parallel private(j)
    {
  #pragma omp for
        for (i=0; i<5; i++);
    }
  }
  
  ===============================
  
  ===== Observed Output
  
  # xlc_r -qsmp=omp -c t.c
  1506-046 (S) Syntax error.
  #
  
  ===========================
  

Local fix

• Use langlvl=extended | extc99 | extc89.
  
  For example:
  
  # xlc_r -qlanglvl=extended -qsmp=omp -c t.c
  #
  # xlc_r -qlanglvl=extc99 -qsmp=omp -c t.c
  #
  # xlc_r -qlanlvl=extc89 -qsmp=omp -c t.c
  

Problem summary

• PROBLEM DESCRIPTION:
  OMP Loop generates a syntax error erroneously. The syntax error
  should not be generated. This is caused by recent
  transformations by a front end compiler component to convert
  OMP loops.
  
  USERS AFFECTED:
  XL C users on AIX/LoP using v11.1 and valid OMP loops with
  langlvl=stdc99 | stdc89 | classic | saa | saal2.
  

Problem conclusion

• A fix is required.
  

Temporary fix

Comments

APAR Information

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

  IZ89334

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

Fix information

• Fixed component name

  XL C/C++ FOR LI

• Fixed component ID

  5724X1400

Applicable component levels

• RB10 PSN IZ89334

     UP06/09/13