inline-min-size, Qinline-min-size

Specifies the upper limit for the size of what the inliner considers to be a small routine.

IDE Equivalent

None

Architectures

IA-32, Intel® EM64T, Intel® Itanium® architecture

Syntax

Linux and Mac OS:	-inline-min-size=n -no-inline-min-size
Windows:	/Qinline-min-size=n /Qinline-min-size-

Arguments

n	Is a positive integer that specifies the maximum size of what the inliner considers to be a small routine.

Default

OFF	The compiler uses default heuristics for inline routine expansion.

Description

This option specifies the upper limit for the size of what the inliner considers to be a small routine (a function or subroutine). The inliner classifies routines as small, medium, or large. This option specifies the boundary between what the inliner considers to be small and medium-size routines.

The inliner has a preference to inline small routines. So, when a routine is smaller than or equal to the specified size, it is very likely to be inlined.

If you specify -no-inline-min-size (Linux and Mac OS) or /Qinline-min-size- (Windows), there is no limit to the size of small routines. Every routine is a small routine; there are no medium or large routines.

To see compiler values for important inlining limits, specify compiler option -opt-report (Linux and Mac OS) or /Qopt-report (Windows).

Caution

When you use this option to increase the default limit, the compiler may do so much additional inlining that it runs out of memory and terminates with an "out of memory" message.

Alternate Options