IJ08116: COMPILER GENERATES SPURIOUS .LST FILES WHEN COMPILING

XL C for AIX, V13.1.3.5 Fix Pack (July 2018)
XL C/C++ for AIX, V13.1.3.5 Fix Pack (July 2018)
XL C for AIX, V13.1.3.6 Fix Pack (May 2019)
XL C/C++ for AIX, V13.1.3.6 Fix Pack (May 2019)

APAR status

• Closed as program error.

Error description

• The compiler produces a .lst file when its not asked for.
  
  ===== COMPILE COMMAND:
  rm -f foo.lst ; xlc_r -O -c foo.c ; ls foo.lst
  
  
  
  ===== TESTCASE:
  $ cat foo.c
  #include <stdlib.h>
  
  int ismul5(unsigned char x)
  {
          return (unsigned char)(x * 0xcd) <= 0x33;
  }
  
  unsigned char div5exact(unsigned char x)
  {
          return x * 0xcd;
  }
  
  int ismul10(unsigned char *phi, unsigned char *plo)
  {
          unsigned char hi = *phi, lo = *plo;
          if (lo & 1) return 0;
          lo = hi << 7 | lo >> 1, hi >>= 1;
          if (!ismul5(hi + lo + ((unsigned char)(hi + lo) < hi)))
  return 0;
          *phi = hi / 5; hi %= 5;
          *plo = hi * 0x33 + div5exact(hi + lo);
          return 1;
  }
  
  int main()
  {
          for (unsigned i = 0; i < 0x10000; i++)
          {
                  unsigned char hi = i >> 8, lo = i;
                  int r = ismul10(&hi, &lo);
                  if (r != (i % 10 == 0)) abort();
                  if (r)
                  {
                          if (hi != (i / 10) >> 8) abort();
                          if (lo != ((i / 10) & 0xff)) abort();
                  }
                  else
                  {
                          if (hi != i >> 8) abort();
                          if (lo != (i & 0xff)) abort();
                  }
          }
          return 0;
  }
  $
  
  
  
  
  ===== ACTUAL OUTPUT:
  $ rm -f foo.lst ; xlc_r -O -c foo.c ; ls foo.lst
  foo.lst
  $
  
  
  
  ===== EXPECTED OUTPUT:
  $ rm -f foo.lst ; xlc_r -O -c foo.c ; ls foo.lst
  foo.lst not found
  $
  

Local fix

• N/A
  

Problem summary

• USERS AFFECTED:
  Clients who compile with V13.1.3.4 and optimization maybe
  affected by this issue.
  
  PROBLEM DESCRIPTION:
  The compiler was generating additonal listing files when it was
  not asked for due to some debug code being present.
  

Problem conclusion

• The compiler has been fixed to avoid generating those .lst
  files.
  

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 FOR AIX

• Fixed component ID

  5725C7100

Applicable component levels

• RD13 PSY

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