mregparm-version

Determines which version of the Application Binary Interface (ABI) is used for the regparm parameter passing convention.

Architecture Restrictions

Only available on IA-32 architecture

Syntax

Linux:

-mregparm-version=n

macOS:

macOS:

None

Windows:

None

Arguments

n

Specifies the ABI implementation to use. Possible values are:

0

Tells the compiler to use the most recent ABI implementation.

1

Tells the compiler to use the ABI implementation that is compatible with gcc 3.4.6 and icc 15.0.

Default

0

The compiler uses the most recent ABI implementation.

Description

This option determines which version of the Application Binary Interface (ABI) is used for the regparm parameter passing convention. This option lets you choose compatibility with previous ABI implementations.

IDE Equivalent

None

Alternate Options

None

Parent topic: Code Generation Options

See Also

mregparm compiler option