Developer Guide and Reference

Contents

vec, Qvec

Enables or disables vectorization.
This content is specific to C++; it does not apply to
DPC++
.

Syntax

Linux:
-vec
-no-vec
Windows:
/Qvec
/Qvec-
Arguments
None
Default
-vec
or
/Qvec
Vectorization is enabled if option
O2
or higher is in effect.
Description
This option enables or disables vectorization.
To disable vectorization, specify
-no-vec
(Linux*) or
/Qvec-
(Windows*).
Using this option enables vectorization at default optimization levels for both Intel® microprocessors and non-Intel microprocessors. Vectorization may call library routines that can result in additional performance gain on Intel microprocessors than on non-Intel microprocessors.
IDE Equivalent
None
Alternate Options
None

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.