-qaltivec

Category

Language element control

Pragma equivalent

None.

Purpose

Enables the compiler support for vector data types and operators.

Defaults

-qnoaltivec

Usage

The -qaltivec option has effect only when you set or imply -qarch to be an architecture that supports vector instructions. Otherwise, the compiler ignores -qaltivec and issues a warning message.

Predefined macros

__ALTIVEC__ is defined to 1 and __VEC__ is defined to 10206 when -qaltivec is in effect; otherwise, they are undefined.

Related information

• -qarch
• -qsimd
• -qvecnvol
• AltiVec Technology Programming Interface Manual, available at http://www.freescale.com/files/32bit/doc/ref_manual/ALTIVECPIM.pdf