Developer Guide and Reference

Contents

freg-struct-return

Tells the compiler to return struct and union values in registers when possible.
Architecture Restrictions
Only available on IA-32 architecture

Syntax

Linux:
-freg-struct-return
macOS:
None
Windows:
None
Arguments
None
Default
OFF
Description
This option tells the compiler to return
struct
and
union
values in registers when possible.
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