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

ID 767253
Date 7/13/2023
Public

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Document Table of Contents

Gv

Tells the compiler to use the vector calling convention (__vectorcall) when passing vector type arguments.

Syntax

Linux:

None

Windows:

/Gv

Arguments

None

Default

OFF

The default calling convention is __cdecl.

Description

This option tells the compiler to use the vector calling convention (__vectorcall) when passing vector type arguments.

It causes each function in the module to compile as __vectorcall unless the function is declared with a conflicting attribute, or the name of the function is main.

This option has been added for Microsoft compatibility.

For more details about the __vectorcall calling convention, see the Microsoft documentation.

NOTE:

This option only applies to host compilation. When offloading is enabled, it does not impact device-specific compilation.

IDE Equivalent

Visual Studio: Advanced > Calling Convention

Eclipse: None

Alternate Options

None