enablevmx

Applies to C Applies to C++

Purpose

Enables generation of VMX (Vector Multimedia Extension) instructions.

Syntax


Syntax Diagram

Defaults

On operating system versions that support VMX instructions, -qenablevmx is set by default. Otherwise, the default is -qnoenablevmx.

Notes

Some processors are able to support VMX (Vector Multimedia Extension) instructions. These instructions can offer higher performance when used with algorithmic-intensive tasks such as multimedia applications.

The -qenablevmx compiler option enables generation of VMX instructions, but you should not use this option unless your operating system version supports VMX instructions.

Also, if -qnoenablevmx is in effect, -qaltivec cannot be used.

Related References

Compiler Command Line Options
altivec
arch
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