qopt-ra-region-strategy, Qopt-ra-region-strategy

Selects the method that the register allocator uses to partition each routine into regions. Option -qopt-ra-region-strategy is the replacement option for -opt-ra-region-strategy, which is deprecated.

Syntax

Linux and macOS:

-qopt-ra-region-strategy[=keyword]

Windows:

/Qopt-ra-region-strategy[:keyword]

Arguments

keyword

Is the method used for partitioning. Possible values are:

routine	Creates a single region for each routine.
block	Partitions each routine into one region per basic block.
trace	Partitions each routine into one region per trace.
loop	Partitions each routine into one region per loop.
default	The compiler determines which method is used for partitioning.

Default

-qopt-ra-region-strategy=default
or/Qopt-ra-region-strategy:default

The compiler determines which method is used for partitioning. This is also the default if keyword is not specified.

Description

This option selects the method that the register allocator uses to partition each routine into regions.

When setting default is in effect, the compiler attempts to optimize the tradeoff between compile-time performance and generated code performance.

This option is only relevant when optimizations are enabled (option O1 or higher).

IDE Equivalent

None

Alternate Options