Legacy IBM XL C/C++ compilers are still available for use

IBM® Open XL C/C++ for AIX® details

Adoption of the Clang and LLVM infrastructures

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Fully incorporates the Clang and LLVM compiler infrastructure. Enables you to enjoy modern C/C++ language features and common LLVM optimization features such as LLVM diagnostic and reporting capabilities.

Exploitation of the latest Power10 architecture

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Fully exploits Power10 architecture. Provides Power10 architecture option, built-in functions, and tuned library functions to maximize the hardware ROI.

Link Time Optimization (LTO)

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Provides program optimization during linking. Enables you to take advantage of intermodular optimizations without making any significant changes to the makefiles or build system.

Profile Guided Optimization (PGO)

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Provides compiler optimization technique in computer programming that uses profiling to improve program runtime performance.

High-performance libraries

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Provides a set of libraries for high-performance mathematical computing including the Mathematical Acceleration Subsystem (MASS) and Basic Linear Algebra Subprograms (BLAS).

Optimization reports

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Provides information to help you utilize compiler features to optimize your applications.

Technical details

Software requirements

IBM Open XL C/C++ for AIX 17.1.0 is supported on the following operating system:

  • IBM AIX V7.2 TL5 SP3
  • IBM AIX 7.3

Hardware requirements

IBM Open XL C/C++ for AIX 17.1.0 has the following hardware requirements:

  • Hard disk space: 500 MB
  • RAM: 2 GB minimum; 4 GB or more recommended