8.6.1 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.