Fixes are available
APAR status
Closed as program error.
Error description
When compiling the following test case, the compiler is encountering an internal error: void foo(unsigned int zSize, int ySize, unsigned int flag[zSize][ySize]) { for (unsigned int z = 1; z < zSize; ++z) { for (int y = 1; y < ySize; ++y) { if (flag[z][1]) { double v = 0.0; } } } } > xlc -O3 -c test.c Calling signal handler... 1586-494 (U) INTERNAL COMPILER ERROR: Signal 11. >
Local fix
Compile with a lower optimization level.
Problem summary
USERS AFFECTED: Only the users who use 'unsigned int' to access multi-dimension variable length arrays (VLAs) maybe affected by this issue. PROBLEM DESCRIPTION: The access of multi-dimension VLA arguments may cause IPA to crash.
Problem conclusion
The compiler has been fixed to prevent a crash when accessing multi-dimensional VLA arguments.
Temporary fix
Comments
APAR Information
APAR number
LI76527
Reported component name
XL C/C++ RHEL52
Reported component ID
5724U8310
Reported release
A10
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2012-01-09
Closed date
2012-01-09
Last modified date
2012-01-09
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++ RHEL52
Fixed component ID
5724U8310
Applicable component levels
RA10 PSN LI76050
UP06/09/13
[{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSJT9L","label":"XL C\/C++"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"A.1","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}}]
Document Information
Modified date:
17 October 2021