BOPT

You can use the BOPT optimizer directive to produce optimized modules based on explicit input and output specifiers.

IN

Specifies one input module that you want to optimize or multiple input modules when wildcards are given in the mem_expr specifier.

OUT

Specifies one output module, or a PDS(E) for one or more output modules when the mem specifier is omitted.

DD:ddname

Specifies a ddname.

dsn

Is a data set name that must include the high-level qualifier.

mem

Is a data set member name.

mem_expr

Is a data set member name that might include an expression. Only the members whose name string match the expression will be processed. Matching is case insensitive.

A regular expression accepts the following symbols:

*

Matches any string.

?

Matches any character.

:

Can be used as a separator for multiple expressions. With multiple expressions any expression matching the string counts as a match. The symbol (|) can also be used as a separator but is deprecated as it is only interpreted correctly in a few EBCDIC code pages.

For example:

• To optimize only members PROGA and PROGB:

  IN=DD:SYSBIN(PROGA:PROGB)

<>

Negates the entire expression that follows it. The symbol (!) can also be used for negation but is deprecated as it is only interpreted correctly in a few EBCDIC code pages.

For example:

• To skip a single member named MEMA:

  IN=DD:SYSBIN(<>MEMA) 

• To skip all members whose names begin with MEMB:

  IN=DD:SYSBIN(<>MEMB*)

• To skip members named MEMA and MEMB:

  IN=DD:SYSBIN(<>MEMA:MEMB) 

path

Is a full HFS path that starts with a slash (/), for example, /home/user1/a.out.opt.

optimizer_option

Is an optimizer option. For a list of optimizer options that you can specify, see Optimizer options.

For examples of the BOPT directive see JCL examples. For sample scenarios of using the BOPT optimizer directive, see Scenario 1: Optimization process with static deployment and Scenario 3: Optimization process using a hybrid approach.