Developer Guide and Reference

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mregparm-version

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

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 allows compatibility with previous versions of gcc and icc.
Alternate Options
None