Intel® Fortran Compiler Classic and Intel® Fortran Compiler Developer Guide and Reference

ID 767251
Date 7/13/2023
Public

A newer version of this document is available. Customers should click here to go to the newest version.

Document Table of Contents

minstruction, Qinstruction

Determines whether MOVBE instructions are generated for certain Intel® processors. This feature is only available for ifort.

Syntax

Linux:

-minstruction=[no]movbe

macOS:

-minstruction=[no]movbe

Windows:

/Qinstruction:[no]movbe

Arguments

None

Default

–minstruction=nomovbe
or/Qinstruction:nomovbe

The compiler does not generate MOVBE instructions for Intel Atom® processors.

Description

This option determines whether MOVBE instructions are generated for Intel Atom® processors. To use this option, you must also specify [Q]xATOM_SSSE3 or [Q]xATOM_SSE4.2.

If -minstruction=movbe or /Qinstruction:movbe is specified, the following occurs:

  • MOVBE instructions are generated that are specific to the Intel Atom® processor.

  • Generated executables can only be run on Intel Atom® processors or processors that support Supplemental Streaming SIMD Extensions 3 (Intel® SSSE3) or Intel® Streaming SIMD Extensions 4.2 (Intel® SSE4.2) and MOVBE.

If -minstruction=nomovbe or /Qinstruction:nomovbe is specified, the following occurs:

  • The compiler optimizes code for the Intel Atom® processor, but it does not generate MOVBE instructions.

  • Generated executables can be run on non-Intel Atom® processors that support Intel® SSE3 or Intel® SSE4.2.

IDE Equivalent

None

Alternate Options

None

See Also