Development Reference Guides

Contents

fdata-sections, Gw

Places each data item in its own COMDAT section.

Syntax

Linux:
-fdata-sections
Windows:
/Gw
Arguments
None
Default
OFF
The compiler does not separate functions into COMDATs.
Description
This option places each data item in its own COMDAT section.
When using this compiler option, you can add the linker option
-Wl,--gc-sections
(LInux) or
/link /OPT:REF
(Windows), which will remove all unused code.
When you put each data item in its own section, it enables the linker to reorder the sections for other possible optimization.
Alternate Options
None

Product and Performance Information

1

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