4 Command Switches

This chapter describes the command-line switches of the basic KAP for DEC Fortran for Digital UNIX.

To specify a command switch, you can use the long name, short name, or any portion of that name (starting at the beginning) that uniquely identifies the switch. Additionally, these switches can be specified on the first line of the source file. (See the description of the C*$* switch line at the end of this chapter.)

Note

The short names for switches are provided for the convenience of interactive users. Since the short names may not be unique in future versions of KAP, the long names should be used when compatibility between versions is required.

Many KAP command switches can also be set with inline directives or assertions. See Chapter 5 for information about directives and Chapter 6 for information about assertions. Chapter 8 shows extensive examples of transformations controlled by these switches.

Table 4-1 lists the command switches. The first column lists the long name of each switch, and also shows the functional categories of switches as follows:

• General optimization

• Parallel processing

• Fortran dialect control

• Directive control

• Inlining/Interprocedural Analysis (IPA)

• Input/output

• Listing

• Advanced optimization control

The next two columns list the short names and default value of each switch.

See Chapter 9, the - listoptions=k switch, for how to get the switch values active for a given KAP run.

Note

A hyphen (-) is required before each switch name, but the hyphen is not shown in the following table.

Table 4-1 Command-Line Switches

The subheadings in the following sections list the long and short names for each switch, followed by its default in parentheses.

Unless otherwise noted, the code examples in this chapter were run with -optimize=5, -scalaropt=2, -roundoff=2 , and -unroll=1 .