Enables optimizations that do not increase code size; it produces smaller code size than O2.
- Optimizations are made for code speed. However, ifO1is specified,Osis the default.
This option enables optimizations that do not increase code size; it produces smaller code size than
O2. It disables some optimizations that increase code size for a small speed benefit.
This option tells the compiler to favor transformations that reduce code size over transformations that produce maximum performance.