Intel® C++ Compiler Classic Developer Guide and Reference

ID 767249
Date 12/16/2022
Public

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Document Table of Contents

mauto-arch, Qauto-arch

Tells the compiler to generate multiple, feature-specific auto-dispatch code paths for x86 architecture processors if there is a performance benefit.

Syntax

Linux:

-mauto-arch=value

macOS:

-mauto-arch=value

Windows:

/Qauto-arch:value

Arguments

value

Is any setting you can specify for option [Q]ax.

Default

OFF

No additional execution path is generated.

Description

This option tells the compiler to generate multiple, feature-specific auto-dispatch code paths for x86 architecture processors if there is a performance benefit. It also generates a baseline code path.

This option cannot be used together with any options that may require Intel-specific optimizations (such as [Q]x or [Q]ax).

IDE Equivalent
None
Alternate Options

None

See Also