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.

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