AOCC Compiler suite – AMD Optimizing C/C++ Compiler

AMD Optimizing C/C++ Compiler (AOCC) is a highly optimized C, C++ and Fortran compiler for x86 targets especially for Zen based AMD processors. It supports Flang as the default Fortran front-end compiler.

The AOCC compiler system is a high performance, production quality code generation tool. The AOCC environment provides various options to developers when building and optimizing C, C++, and Fortran applications targeting 32-bit and 64-bit Linux platforms.

The AOCC compiler system offers a high level of advanced optimizations, multi-threading and processor support that includes global optimization, vectorization, inter-procedural analyses, loop transformations, and code generation. AMD also provides highly optimized libraries, which extract the optimal performance from each x86 processor core when utilized. The AOCC Compiler Suite simplifies and accelerates development and tuning for x86 applications.

AOCC leverages LLVM’s Clang which is the compiler and driver for C and C++ programs and Flang is the compiler and driver for Fortran programs.

Features include:

  • Tuned for AMD Family 17h processors. AOCC includes many targets independent and target dependent optimization. Some of these are made default when you use optimization level -O3 and above.
  • Machine dependent optimizations for better performance in AMD EPYC 7xx2-series architectures.
  • Enhanced high-level optimizations towards AMD EPYC 7xx2-series of architectures.
  • Improved Flang – as default Fortran front-end with added F2008 features. Flang is the Fortran frontend designed for integration with LLVM and suitable for interoperability with Clang/LLVM.
  • Optimized libraries including AMDLibM (libM math library v3.3).
  • LLVM linker (lld) as the default linker.

Support: User Guide
Developer: AMD
License: University of Illinois/NCSA Open Source License

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