-qassert

In IBM® XL C/C++ for AIX® 16.1.0 or earlier releases, the -qassert option provides information about the characteristics of the programs that can help to fine-tune optimizations.

In IBM Open XL C/C++ for AIX 17.1.3, there is no option that is functionally equivalent to -qassert. However, you can get similar optimization hints through the __builtin_assume() or __builtin_assume_aligned() function.