Selective generation of multiple versions of machine code for source code functions for execution on different processor versions and/or architectures
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United States of America Patent
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May 14, 2019
Grant Date -
Apr 12, 2018
app pub date -
Oct 11, 2016
filing date -
Oct 11, 2016
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Abstract
Utilities for use in generation of a single executable (e.g., single set of machine code) compatible with processors of multiple different architectures and/or versions with reduced levels of code bloating, no or limited changes to the source code, no or limited special code and/or data sections in the executable, and the like. Specifically, a compiler can selectively generate machine code for each of one or more particular C++ functions for each of a plurality of different processor versions and/or architectures in a “multi-version mode” or “multi-architecture mode” to allow such functions to perform better under different processor versions or architectures, avoid the need to maintain multiple entire object code sets for different processor versions or architectures, and allow for maintenance of a substantially complete C++ code mechanism.
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