Allow specific optimization passes to be requested from the command line. Now you can run "`ldc test.d -c -mem2reg -simplifycfg`" if you feel the urge. The -O<N> options are still supported, and are inserted in the passes list in the position where they appear on the command line. (so -simplifycfg -O1 -instcombine does the "right thing") One small change: -inline is renamed to -enable-inlining due to a naming conflict with the option to add the -inline pass. -inline now inserts the inlining pass in the position specified, not in the middle of -O<N>. (ldmd has been updated to translate -inline to -enable-inlining)

// ushort

module typeinfo1.ti_ushort;

class TypeInfo_t : TypeInfo
{
    char[] toString() { return "ushort"; }

    hash_t getHash(void *p)
    {
	return *cast(ushort *)p;
    }

    int equals(void *p1, void *p2)
    {
	return *cast(ushort *)p1 == *cast(ushort *)p2;
    }

    int compare(void *p1, void *p2)
    {
	return *cast(ushort *)p1 - *cast(ushort *)p2;
    }

    size_t tsize()
    {
	return ushort.sizeof;
    }

    void swap(void *p1, void *p2)
    {
	ushort t;

	t = *cast(ushort *)p1;
	*cast(ushort *)p1 = *cast(ushort *)p2;
	*cast(ushort *)p2 = t;
    }
}