Node: D10V-Opts, Next: D10V-Syntax, Up: D10V-Dependent

### D10V Options

The Mitsubishi D10V version of `as` has a few machine dependent options.

`-O`
  The D10V can often execute two sub-instructions in parallel. When this option is used, `as` will attempt to optimize its output by detecting when instructions can be executed in parallel.
`--nowarnswap`
  To optimize execution performance, `as` will sometimes swap the order of instructions. Normally this generates a warning. When this option is used, no warning will be generated when instructions are swapped.
`--gstabs-packing`
`--no-gstabs-packing`
  `as` packs adjacent short instructions into a single packed instruction. `--no-gstabs-packing` turns instruction packing off if `--gstabs` is specified as well; `--gstabs-packing` (the default) turns instruction packing on even when `--gstabs` is specified.