Fixes are available
XL C/C++ for Linux Fix Pack 8 (October 2015 Update) for 12.1
XL C/C++ for Linux Fix Pack 4 (October 2013 Update) for 12.1
XL C/C++ for Linux Fix Pack 5 (December 2013 Update) for 12.1
XL C/C++ for Linux Fix Pack 6 (February 2014 Update) for 12.1
XL C/C++ for Linux Fix Pack 7 (May 2014 Update) for 12.1
APAR status
Closed as program error.
Error description
Compiling the following test case with -qsmp=omp will result in runtime application infinite loop for the do while statement. #include <stdio.h> int main () { printf ("hello\n"); unsigned char dividend = 0; do { printf ("dividend = %x\n", dividend); } while (++dividend); printf ("good bye\n"); return 0; } xlc_r -qsmp=omp t.c ===== ACTUAL OUTPUT: Prints out dividend, iterating through the unsigned char hex values, non-stop and "good bye" is not printed out. ..... dividend = fd dividend = fe dividend = ff ..... ===== EXPECTED OUTPUT: ..... dividend = fd dividend = fe dividend = ff good bye
Local fix
Use -qstrict_induction
Problem summary
PROBLEM DESCRIPTION: Integer overflow for loop induction variable causes incorrect output during loop normalization USERS AFFECTED: Users explicitly overflowing the loop induction variable at -O3, -qsmp, -qhot, -qpdf, or -qipa
Problem conclusion
Problem is fixed. Apply provided service.
Temporary fix
Comments
APAR Information
APAR number
LI77645
Reported component name
XL C/C++ FOR LI
Reported component ID
5725C7300
Reported release
C10
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2013-10-28
Closed date
2013-10-28
Last modified date
2013-10-28
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++ FOR LI
Fixed component ID
5725C7300
Applicable component levels
RC10 PSN IV37088
UP06/09/13
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Document Information
Modified date:
14 October 2021