Creating a Multifile IPO Executable with xild

The Intel linker, xild, performs the following steps:

invokes the Intel compiler to perform multifile IPO if objects containing IR are found
invokes the GNU linker, ld, to link the application

The command-line syntax for xild is:

prompt>xild [<options>] <LINK_commandline>

where:

[<options>] (optional) may include any gcc linker options or options supported only by xild.
<LINK_commandline> is the linker command line containing a set of valid arguments to ld.

To place the multifile IPO executable in ipo_file, use the option -ofilename, for example:

prompt>xild oipo_file a.o b.o c.o

xild calls Intel compiler to perform IPO for objects containing IR and creates a new list of object(s) to be linked. Then xild calls ld to link the object files that are specified in the new list and produce ipo_file executable specified by the -ofilename option.

Note

The -ipo option can reorder object files and linker arguments on the command line. Therefore, if your program relies on a precise order of arguments on the command line, -ipo can affect the behavior of your program.

Usage Rules

You must use the Intel linker xild to link your application if:

your source files were compiled with multifile IPO enabled. Multifile IPO is enabled by specifying the -ipo command-line option
you normally would invoke ld to link your application

The xild Options

The additional options supported by xild may be used to examine the results of multifile IPO. These options are described in the following table.

Option	Description
-ipo_o[file.s]	Produces assemblable files for the multifile IPO compilation. You may specify an optional name for the listing file, or a directory (with the backslash) in which to place the file. The default listing name is ipo_out.s.
-ipo_o[file.o]	Produces object file for the multifile IPO compilation. You may specify an optional name for the object file, or a directory (with the backslash) in which to place the file. The default object file name is ipo_out.o.
-ipo_fcode-asm	Add code bytes to assemblable files
-ipo_fsource-asm	Add high-level source code to assemblable files
-ipo_fverbose-asm, -ipo_fnoverbose-asm	Enable and disable, respectively, inserting comments containing version and options used in the assemblable file for xild