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3.3 Compiler Policy

Compiler policy is controlled by the optimize declaration, supporting all ANSI optimization qualities (debug, safety, space, and speed).1

For effects of various optimization qualities on type-safety and debuggability see Declarations as Assertions and Debugger Policy Control.

Ordinarily, when the speed quality is high, the compiler emits notes to notify the programmer about its inability to apply various optimizations. For selective muffling of these notes See Controlling Verbosity.

The value of space mostly influences the compiler's decision whether to inline operations, which tend to increase the size of programs. Use the value 0 with caution, since it can cause the compiler to inline operations so indiscriminately that the net effect is to slow the program by causing cache misses or even swapping.


Footnotes

[1] A deprecated extension sb-ext:inhibit-warnings is still supported, but liable to go away at any time.