XL C/C++ V2R1M1 web deliverable for z/OS® 2.1 includes vector programming support for programmers by making use of the Vector Facility for z/Architecture®.
The compiler supports vector processing technologies through language extensions, based on the AltiVec Programming Interface specification with suitable changes and extensions.
This chapter describes IBM® XL C/C++ language extensions for vector processing support, including compiler options, vector data types and operators, macro, and built-in functions.