#pragma reg_killed_by

In IBM® XL C/C++ for AIX® 16.1.0 or earlier releases, #pragma reg_killed_by specifies registers that might be altered by functions that are specified by #pragma mc_func.

IBM Open XL C/C++ for AIX 17.1.3 does not support #pragma mc_func, so #pragma reg_killed_by is not needed. If you use inline asm labels in place of #pragma mc_func in IBM Open XL C/C++ for AIX 17.1.3, you can use the clobber list to specify which registers are altered.

Related information

• #pragma mc_func
• Inline assembly statements
• The "ASM Goto with Output Constraints" in the Clang documentation