1. A computer program product for mapping applications between processors of different system architectures, the computer program product comprising: a non-transitory computer readable storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for performing a method comprising: obtaining, by a processor, program code that depends on vector element ordering, the program code being a part of an application comprising one or more intrinsics, the one or more intrinsics mapped from a first system architecture for which the application was written to a second system architecture on which the application is to be executed, the first system architecture having a first instruction set architecture different from a second instruction set architecture of the second system architecture, and wherein an intrinsic is a built-in function in a given programming language for which a compiler has knowledge and handles implementation thereof; converting, by the processor, one or more operations of the program code included in the application comprising the one or more intrinsics mapped to the second system architecture from a first data layout to a second data layout, wherein based on the converting, the application is executable on the processor, the processor configured based on the second system architecture; obtaining, by the processor, a description of semantic operations of the one or more intrinsics of the first system architecture; using the description to map the one or more intrinsics to emulated intrinsics of the second system architecture; wherein the using the description comprises converting the description into a compiler internal language of the second system architecture, the compiler internal language having a data representation corresponding to the first data layout of the first system architecture; and generating machine code using the compiler internal language with the data representation of the second system architecture.