Intel® oneAPI DPC++/C++ Compiler Developer Guide and Reference

ID 767253
Date 3/22/2024
Public

A newer version of this document is available. Customers should click here to go to the newest version.

Document Table of Contents

Os

Enables optimizations that do not increase code size; it produces smaller code size than O2.

Syntax

Linux:

-Os

Windows:

/Os

Arguments

None

Default

OFF

Optimizations are made for code speed. However, if O1 is specified, Os is the default.

Description

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.

IDE Equivalent

Visual Studio: Optimization > Favor Size or Speed

Eclipse: None

Alternate Options

None

See Also