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GCC can do Function Multi Versioning (https://gcc.gnu.org/wiki/FunctionMultiVersioning https://gcc.gnu.org/wiki/FunctionMultiVersioning , https://lwn.net/Articl

by jjuhl 7y ago

GCC can do Function Multi Versioning (https://gcc.gnu.org/wiki/FunctionMultiVersioning https://gcc.gnu.org/wiki/FunctionMultiVersioning , https://lwn.net/Articles/691932/ https://lwn.net/Articles/691932/) where it will generate code for multiple CPUs and select the best at run time.