// AVX2GATHER mask/index/dest #UD cases.
	VPGATHERQQ Y2, (BP)(X2*2), Y2   // ERROR "mask, index, and destination registers should be distinct"
	VPGATHERQQ Y2, (BP)(X2*2), Y7   // ERROR "mask, index, and destination registers should be distinct"
	VPGATHERQQ Y2, (BP)(X7*2), Y2   // ERROR "mask, index, and destination registers should be distinct"

pkg syscall (freebsd-386), const BPF_T_FAST ideal-int
pkg syscall (freebsd-386), const BPF_T_FLAG_MASK = 768
pkg syscall (freebsd-386), const BPF_T_FLAG_MASK ideal-int
pkg syscall (freebsd-386), const BPF_T_FORMAT_MASK = 3
pkg syscall (freebsd-386), const BPF_T_FORMAT_MASK ideal-int
pkg syscall (freebsd-386), const BPF_T_MICROTIME = 0
pkg syscall (freebsd-386), const BPF_T_MICROTIME ideal-int

pkg syscall (freebsd-386), const MAP_ALIGNED_SUPER = 16777216
pkg syscall (freebsd-386), const MAP_ALIGNED_SUPER ideal-int
pkg syscall (freebsd-386), const MAP_ALIGNMENT_MASK = -16777216
pkg syscall (freebsd-386), const MAP_ALIGNMENT_MASK ideal-int
pkg syscall (freebsd-386), const MAP_ALIGNMENT_SHIFT = 24
pkg syscall (freebsd-386), const MAP_ALIGNMENT_SHIFT ideal-int
pkg syscall (freebsd-386), const MSG_CMSG_CLOEXEC = 262144

</p>

<pre>
const (
	bit0, mask0 = 1 &lt;&lt; iota, 1&lt;&lt;iota - 1  // bit0 == 1, mask0 == 0  (iota == 0)
	bit1, mask1                           // bit1 == 2, mask1 == 1  (iota == 1)
	_, _                                  //                        (iota == 2, unused)
	bit3, mask3                           // bit3 == 8, mask3 == 7  (iota == 3)
)
</pre>

<p>

				b = append(b, replacement...)
			}
			continue
		}
		invalid = false
		b = append(b, s[i:i+wid]...)
		i += wid
	}
	return b
}

// isSeparator reports whether the rune could mark a word boundary.
// TODO: update when package unicode captures more of the properties.
func isSeparator(r rune) bool {
	// ASCII alphanumerics and underscore are not separators
	if r <= 0x7F {
		switch {

pkg syscall (freebsd-riscv64), const BPF_T_FAST ideal-int #53466
pkg syscall (freebsd-riscv64), const BPF_T_FLAG_MASK = 768 #53466
pkg syscall (freebsd-riscv64), const BPF_T_FLAG_MASK ideal-int #53466
pkg syscall (freebsd-riscv64), const BPF_T_FORMAT_MASK = 3 #53466
pkg syscall (freebsd-riscv64), const BPF_T_FORMAT_MASK ideal-int #53466
pkg syscall (freebsd-riscv64), const BPF_T_MICROTIME = 0 #53466

pkg syscall (netbsd-arm64-cgo), const IPV6_FAITH ideal-int
pkg syscall (netbsd-arm64-cgo), const IPV6_FLOWINFO_MASK = 4294967055
pkg syscall (netbsd-arm64-cgo), const IPV6_FLOWINFO_MASK ideal-int
pkg syscall (netbsd-arm64-cgo), const IPV6_FLOWLABEL_MASK = 4294905600
pkg syscall (netbsd-arm64-cgo), const IPV6_FLOWLABEL_MASK ideal-int
pkg syscall (netbsd-arm64-cgo), const IPV6_FRAGTTL = 120

and declares <code>runtime·tlsoffset</code>, a 4-byte, implicitly zeroed variable that
contains no pointers.
</p>

<p>
There may be one or two arguments to the directives.
If there are two, the first is a bit mask of flags,
which can be written as numeric expressions, added or or-ed together,
or can be set symbolically for easier absorption by a human.

	if len(b) > 0 && b[0]&0x80 != 0 {
		// Handling negative numbers relies on the following identity:
		//	-a-1 == ^a
		//
		// If the number is negative, we use an inversion mask to invert the
		// data bytes and treat the value as an unsigned number.
		var inv byte // 0x00 if positive or zero, 0xff if negative
		if b[0]&0x40 != 0 {
			inv = 0xff
		}

		var x uint64

pkg syscall (freebsd-arm64), const BPF_T_FAST ideal-int
pkg syscall (freebsd-arm64), const BPF_T_FLAG_MASK = 768
pkg syscall (freebsd-arm64), const BPF_T_FLAG_MASK ideal-int
pkg syscall (freebsd-arm64), const BPF_T_FORMAT_MASK = 3
pkg syscall (freebsd-arm64), const BPF_T_FORMAT_MASK ideal-int
pkg syscall (freebsd-arm64), const BPF_T_MICROTIME = 0
pkg syscall (freebsd-arm64), const BPF_T_MICROTIME ideal-int