SLAU132V October 2004 – February 2020
When you invoke the compiler with the --opt_level=3 option, you can use the --gen_opt_info option to create an optimization information file that you can read. The number following the option denotes the level (0, 1, or 2). The resulting file has an .nfo extension. Use Table 3-2 to select the appropriate level to append to the option.
If you... | Use this option |
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Do not want to produce an information file, but you used the --gen_opt_level=1 or --gen_opt_level=2 option in a command file or an environment variable. The --gen_opt_level=0 option restores the default behavior of the optimizer. | --gen_opt_info=0 |
Want to produce an optimization information file | --gen_opt_info=1 |
Want to produce a verbose optimization information file | --gen_opt_info=2 |