Was just browsing through some front end code and found this bit of code in canInline() in inline.c:

    /* If any parameters are Tsarray's (which are passed by reference)
     * or out parameters (also passed by reference), don't do inlining.
     */
    if (parameters)
    {
	for (int i = 0; i < parameters->dim; i++)
	{
	    VarDeclaration *v = (VarDeclaration *)parameters->data[i];
	    if (v->isOut() || v->isRef() || v->type->toBasetype()->ty == Tsarray)
		goto Lno;
	}
    }

The comment, as far as I can see, is obsolete since static arrays are now value types? Perhaps this restriction can be lifted now? Especially for functions on small vectors, I would expect inlining to be very beneficial.

Just putting this here to have it not overlooked.