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Parallel Programming Guide for HP-UX Systems: K-Class and V-Class Servers > Chapter 6 Parallel optimization features

Cloning across multiple source files

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Cloning is the replacement of a call to a routine by a call to a clone of that routine. The clone is optimized differently than the original routine. Cloning can expose additional opportunities for interprocedural optimization.

Cloning at +O4 is performed across all procedures within the program. Cloning at +O3 is done within one file. Cloning is enabled by default. It is disabled by specifying the +Onoinline command-line option.

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