Advanced compilation and optimization technologies for AIX and Power Systems

XL C/C++ for AIX 60 day no-charge evaluation

IBM® XL C for AIX® is a compiler that facilitates the creation and maintenance of applications written in C for IBM Power Systems™. XL C for AIX supports vector and parallel programming for multiprocessor systems, while maintaining full binary compatibility with existing single processor systems. This compiler complies with the C99 and a subset of C11 programming language standards, providing support for code portability between multiple operating systems and hardware platforms.

IBM® XL C for AIX® provides the following benefits and features:

Optimizes application performance

Provides highly-tuned libraries

Conforms to the latest ISO C99 standard

XL C for AIX resources

Always up-to-date system requirement reports can be dynamically generated using the Software Product Compatibility Reports (SPCR) tool.

For your convenience, the tabs below identify the supported releases of XL C for AIX from which you can select detailed system requirement reports for different contexts (by Operating System, by component). Note that clicking a link will always generate a new, up-to-date report.

Tab navigation

13.1.3 Release

13.1.2 Release

13.1 Release

12.1 Release

11.1 Release

IBM® XL C for AIX® V13.1.3 enhancements help to increase application performance and developer productivity while maximizing your IT investments.

XL C for AIX V13.1.3 provides the following benefits and features:


Faster applications

Increased programmer productivity

Quality improvements and simpler administration

Access the following resources to download the licensed version and evaluation version of the compiler products.

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