A fix is available
APAR status
Closed as program error.
Error description
When compiling a large program with complex flow with optimization, the compiler incorrectly optimizes away an 'if' statement causing the program to produce incorrect output at runtime.
Local fix
N/A
Problem summary
**************************************************************** * USERS AFFECTED: Users of XLC on zOS with large programs * * with complex control flow using * * optimization. * **************************************************************** * PROBLEM DESCRIPTION: Optimization that guarantees * * correct order of instructions that * * modify condition code register value * * and those that consume this value, * * didn't run due to incorrect heuristics * * This caused incorrect program results * * at execution. * **************************************************************** * RECOMMENDATION: Apply the provided PTF. * * * **************************************************************** .
Problem conclusion
Apply provided service.
Temporary fix
Comments
APAR Information
APAR number
PI74614
Reported component name
C/C++ FOR MVS
Reported component ID
56551210A
Reported release
7A0
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2017-01-09
Closed date
2017-01-09
Last modified date
2017-02-01
APAR is sysrouted FROM one or more of the following:
PI74414
APAR is sysrouted TO one or more of the following:
Modules/Macros
CCNETBY
Fix information
Fixed component name
C/C++ FOR MVS
Fixed component ID
56551210A
Applicable component levels
R7A0 PSY UI43767
UP17/01/26 P F701
Fix is available
Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.
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Document Information
Modified date:
09 August 2024