Developer Guide and Reference

Contents

vec-guard-write, Qvec-guard-write

Tells the compiler to perform a conditional check in a vectorized loop.

Syntax

Linux and macOS:
-vec-guard-write
-no-vec-guard-write
Windows:
/Qvec-guard-write
/Qvec-guard-write-
Arguments
None
Default
-vec-guard-write
or
/Qvec-guard-write
The compiler performs a conditional check in a vectorized loop.
Description
This option tells the compiler to perform a conditional check in a vectorized loop. This checking avoids unnecessary stores and may improve performance.
Alternate Options
None

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804