A fix is available
APAR status
Closed as program error.
Error description
(COB V5.2) Compile time with OPT(1),STGOPT under COB V5.1 is 40 times greater than OPT(FULL) compile under COB V4.
Local fix
Compile with OPT(0).
Problem summary
**************************************************************** * USERS AFFECTED: Users of Enterprise COBOL V5.1 compiling * * large programs with compiler options * * OPT(1) and OPT(2). * * * **************************************************************** * PROBLEM DESCRIPTION: Performance: Long compile time. * * * **************************************************************** * RECOMMENDATION: Apply the provided PTF. * * * **************************************************************** Programs that have large amounts of stores and aliases spend a large amount of time calculating copy propagation in common sub-expression elimination.
Problem conclusion
Copy propagation was altered to calculate results based on the smaller set of information it has available to it, the list of stores or the list of aliases. Providing significant compile time reduction for some programs.
Temporary fix
Comments
APAR Information
APAR number
PI53536
Reported component name
ENT COBOL FOR Z
Reported component ID
5655W3200
Reported release
510
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2015-12-03
Closed date
2015-12-09
Last modified date
2016-01-04
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Modules/Macros
IGYCBE
Fix information
Fixed component name
ENT COBOL FOR Z
Fixed component ID
5655W3200
Applicable component levels
R510 PSY UI33661
UP15/12/16 P F512
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:
04 January 2016