# ffat-lto-objects

Determines whether a fat link-time optimization (LTO) object, containing both intermediate language and object code, is generated during an interprocedural optimization compilation (-c –ipo). This feature is only available for ifort.

## Syntax

Linux: | -ffat-lto-objects -fno-fat-lto-objects

macOS: | None

Windows: | None

## Arguments

None

## Default

-ffat-lto-objects | When -c -ipo is specified, the compiler generates a fat link-time optimization (LTO) object that has both a true object and a discardable intermediate language section.

## Description

This option determines whether a fat link time optimization (LTO) object, containing both intermediate language and object code, is generated during an interprocedural optimization compilation (-c -ipo).

During an interprocedural optimization compilation (-c -ipo), the following occurs:

- If you specify -ffat-lto-objects, the compiler generates a fat link-time optimization (LTO) object that has both a true object and a discardable intermediate language section. This enables both link-time optimization (LTO) linking and normal linking.

- If you specify -fno-fat-lto-objects, the compiler generates a fat link-time optimization (LTO) object that only has a discardable intermediate language section; no true object is generated. This option may improve compilation time.

Note that these files will be inserted into archives in the form in which they were created.

This option is provided for compatibility with gcc. For more information about this option, see the gcc documentation.

### Note

Intel's intermediate language representation is not compatible with gcc's intermediate language representation.

## IDE Equivalent

None

## Alternate Options

None

Parent topic: Interprocedural Optimization Options

## See Also

ipo, Qipo compiler option