The lowest common denominator strategy is an instruction selection technique used on platforms where Processor Supplementary Instructions exist to make executable programs portable across a wide range of computers. Under a lowest common denominator strategy, the default behaviour of the compiler is to build for the lowest common architecture. Use of any available processor extension is switched off by default, unless explicitly switched on by command line switches.
The use of a lowest common denominator strategy means that Processor Supplementary Instructions and Processor Supplementary Capabilities features are not used by default.
Read more about this topic: Instruction Selection
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