GOARCH := buildcfg.GOARCH

	flags.Parse()
	counter.Inc("asm/invocations")
	counter.CountFlags("asm/flag:", *flag.CommandLine)

	architecture := arch.Set(GOARCH, *flags.Shared || *flags.Dynlink)
	if architecture == nil {
		log.Fatalf("unrecognized architecture %s", GOARCH)
	}
	ctxt := obj.Linknew(architecture.LinkArch)
	ctxt.CompressInstructions = flags.DebugFlags.CompressInstructions != 0
	ctxt.Debugasm = flags.PrintOut

	flag.Var(&I, "I", "include directory; can be set multiple times")
	flag.BoolVar(&DebugV, "v", false, "print debug output")
	flag.Var(objabi.NewDebugFlag(&DebugFlags, nil), "d", "enable debugging settings; try -d help")
	objabi.AddVersionFlag() // -V
	objabi.Flagcount("S", "print assembly and machine code", &PrintOut)

	DebugFlags.CompressInstructions = 1
}

<a href="#Predeclared_identifiers"><code>nil</code></a>;
that case is selected when the expression in the TypeSwitchGuard
is a <code>nil</code> interface value.
There may be at most one <code>nil</code> case.
</p>

<p>
Given an expression <code>x</code> of type <code>interface{}</code>,
the following type switch:
</p>

<pre>
switch i := x.(type) {
case nil:

var riscv64SpecialOperand map[string]riscv.SpecialOperand

// RISCV64SpecialOperand returns the internal representation of a special operand.
func RISCV64SpecialOperand(name string) riscv.SpecialOperand {
	if riscv64SpecialOperand == nil {
		// Generate mapping when function is first called.
		riscv64SpecialOperand = map[string]riscv.SpecialOperand{}
		for opd := riscv.SPOP_RVV_BEGIN; opd < riscv.SPOP_RVV_END; opd++ {
			riscv64SpecialOperand[opd.String()] = opd