PH18744: S0C7 RUN-TIME ABEND ON VCVBG INSTRUCTION WITH ARCH(12)

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• S0C7 run-time abend on VCVBG instruction with ARCH(12)
  

Local fix

• OPT(0)
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of Enterprise COBOL V6.2 compiling     *
  *                 programs at ARCH(12) that contain a COMPUTE  *
  *                 statement with many arithmetic operations,   *
  *                 where at least some senders are PACKED-      *
  *                 DECIMAL or USAGE DISPLAY and where           *
  *                 intermediate results exceed 15 digits. More  *
  *                 likely to occur if there is also an          *
  *                 exponentiation operation.                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: Unexpected behaviour, possibly a S0C7   *
  *                      abend.                                  *
  ****************************************************************
  * RECOMMENDATION: Apply the provided PTF.                      *
  ****************************************************************
  When spilling vector registers, the compiler's internal state
  became incorrect, causing a spilled 16-byte vector register to
  be reloaded as an 8-byte floating-point register. As the 16
  floating-point registers are shared with the first 16 vector
  registers, this caused a subsequent use of the vector register
  to contain an incorrect value.
  

Problem conclusion

• The compiler was fixed to correctly reload a spilled vector
  register as a vector register and not a floating-point
  register.
  

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:

Modules/Macros

• IGY8RWTU IGYCASMB IGYCCBE  IGYCCCRT IGYCCICS IGYCCSRV IGYCDGEN
  IGYCDIAG IGYCDMAP IGYCEN$0 IGYCEN$1 IGYCEN$2 IGYCEN$3 IGYCEN$4
  IGYCEN$5 IGYCEN$8 IGYCEN$D IGYCEN$R IGYCFGEN IGYCFREE IGYCINIT
  IGYCJA$0 IGYCJA$1 IGYCJA$2 IGYCJA$3 IGYCJA$4 IGYCJA$5 IGYCJA$8
  IGYCJA$D IGYCJA$R IGYCLIBH IGYCLIBO IGYCLIBR IGYCLSTR IGYCLVL0
  IGYCLVL1 IGYCLVL2 IGYCLVL3 IGYCLVL8 IGYCMALL IGYCOSCN IGYCPGEN
  IGYCRCTL IGYCRDPR IGYCRDSC IGYCREAL IGYCRWT  IGYCSCAN IGYCSIMD
  IGYCUE$0 IGYCUE$1 IGYCUE$2 IGYCUE$3 IGYCUE$4 IGYCUE$5 IGYCUE$8
  IGYCUE$D IGYCUE$R IGYCXREF IGYDRV   IGYEQCWI IGYMSGE  IGYMSGK
  IGYMSGT  IGYQCBE  IGYZQDRV IGYZQENU IGYZQJPN
  

Fix information

• Fixed component name

  ENT COBOL FOR Z

• Fixed component ID

  5655EC600

Applicable component levels

• R620 PSY UI67017

     UP19/12/19 P F912

• R621 PSY UI67018

     UP19/12/19 P F912

• R622 PSY UI67019

     UP19/12/19 P F912

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.