// 386:"SHRL\t[$]5",-"DIVL"
	// amd64:"SHRQ\t[$]5",-"DIVQ"
	// arm:"SRL\t[$]5",-".*udiv"
	// arm64:"LSR\t[$]5",-"UDIV"
	// ppc64x:"SRD"
	a := n1 / 32 // unsigned

	// amd64:"SARQ\t[$]6",-"IDIVQ"
	// 386:"SARL\t[$]6",-"IDIVL"
	// arm:"SRA\t[$]6",-".*udiv"
	// arm64:"ASR\t[$]6",-"SDIV"
	// ppc64x:"SRAD"
	b := n2 / 64 // signed

	return a, b
}

// Check that constant divisions get turned into MULs

const (
	hwcap_VFPv4 = 1 << 16
	hwcap_IDIVA = 1 << 17
	hwcap_LPAE  = 1 << 20
)

func doinit() {
	options = []option{
		{Name: "vfpv4", Feature: &ARM.HasVFPv4},
		{Name: "idiva", Feature: &ARM.HasIDIVA},
		{Name: "v7atomics", Feature: &ARM.HasV7Atomics},
	}

	// HWCAP feature bits
	ARM.HasVFPv4 = isSet(HWCap, hwcap_VFPv4)
	ARM.HasIDIVA = isSet(HWCap, hwcap_IDIVA)

	if err != nil {
		t.Fatal(err)
	}
	defer f.Close()
	defer Remove(f.Name())

	msg := "Programming today is a race between software engineers striving to " +
		"build bigger and better idiot-proof programs, and the Universe trying " +
		"to produce bigger and better idiots. So far, the Universe is winning."

	if err := WriteFile(f.Name(), []byte(msg), 0644); err != nil {
		t.Fatalf("WriteFile %s: %v", f.Name(), err)

		exp  string
	}{
		{
			&Address{Address: "******@****.***"},
			"<******@****.***>",
		},
		{ // quoted local parts: RFC 5322, 3.4.1. and 3.2.4.
			&Address{Address: `my@idiot@******@****.***`},
			`<"my@idiot@address"@example.com>`,
		},
		{ // quoted local parts
			&Address{Address: ` @example.com`},
			`<" "@example.com>`,
		},
		{
			&Address{Name: "Bob", Address: "******@****.***"},