Fixes are available
September 2012 Update for XL C/C++ for Linux, V12.1
April 2013 Update for XL C/C++ for Linux, V12.1
XL C/C++ for Linux Fix Pack 8 (October 2015 Update) for 12.1
December 2012 Update for XL C/C++ for Linux, V12.1
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
When compiling the following test case with -qsimd, the compiler is encountering an internal compiler error: ===== TEST CASE ===== #include <stdint.h> int function(short *data, short *out, long index) { long i, tmp; tmp = index & 0xFFFFFFFFLL; if(data[tmp]==0) { return 0; } for (i=0; i<30; i++) out[i] = data[tmp]; return tmp; } > xlc -qarch=pwr7 -qhot -qsimd -q64 test.c ipa: simd_util.cpp:103: int log2_int(int): Assertion `x != 0' failed. Calling signal handler... 1586-494 (U) INTERNAL COMPILER ERROR: Signal 6. xlc: 1501-230 (S) Internal compiler error; please contact your Service Representative. For more information visit: http://www.ibm.com/support/docview.wss?uid=swg21110810 >
Local fix
Do not use -qsimd
Problem summary
PROBLEM DESCRIPTION: Integer overflow in the IPA SIMD compiler step when loading the constant 0xFFFFFFFF in the source program. USERS AFFECTED: Users on using -qsimd.
Problem conclusion
The issue was corrected.
Temporary fix
Comments
APAR Information
APAR number
LI77004
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
2012-08-28
Closed date
2012-08-28
Last modified date
2012-08-28
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 LI76802
UP06/09/13
[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSXVZZ","label":"XL C\/C++ for Linux"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"12.1","Line of Business":{"code":"LOB57","label":"Power"}}]
Document Information
Modified date:
14 October 2021