Developer Guide and Reference

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momit-leaf-frame-pointer

Determines whether the frame pointer is omitted or kept in leaf functions.

Syntax

Linux:
-momit-leaf-frame-pointer
-mno-omit-leaf-frame-pointer
Windows:
None
Arguments
None
Default
Varies
If you specify option
-fomit-frame-pointer
(or it is set by default), the default is
-momit-leaf-frame-pointer
. If you specify option
-fno-omit-frame-pointer
, the default is
-mno-omit-leaf-frame-pointer
.
Description
This option determines whether the frame pointer is omitted or kept in leaf functions. It is related to option
-f[no-]omit-frame-pointer
and the setting for that option has an effect on this option.
Consider the following option combinations:
Option Combination
Result
-fomit-frame-pointer -momit-leaf-frame-pointer
or
-fomit-frame-pointer -mno-omit-leaf-frame-pointer
Both combinations are the same as specifying
-fomit-frame-pointer
. Frame pointers are omitted for all routines.
-fno-omit-frame-pointer -momit-leaf-frame-pointer
In this case, the frame pointer is omitted for leaf routines, but other routines will keep the frame pointer.
This is the intended effect of option
-momit-leaf-frame-pointer
.
-fno-omit-frame-pointer -mno-omit-leaf-frame-pointer
In this case,
-mno-omit-leaf-frame-pointer
is ignored since
-fno-omit-frame-pointer
retains frame pointers in all routines .
This combination is the same as specifying
-fno-omit-frame-pointer
.
This option is provided for compatibility with gcc.
IDE Equivalent
Visual Studio:
None
Eclipse:
Optimization > Omit frame pointer for leaf routines
Alternate Options
None

Product and Performance Information

1

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