ARM64.HasSHA2 = isSet(HWCap, hwcap_SHA2)
	ARM64.HasCRC32 = isSet(HWCap, hwcap_CRC32)
	ARM64.HasCPUID = isSet(HWCap, hwcap_CPUID)
	ARM64.HasSHA512 = isSet(HWCap, hwcap_SHA512)

	// The Samsung S9+ kernel reports support for atomics, but not all cores
	// actually support them, resulting in SIGILL. See issue #28431.
	// TODO(elias.naur): Only disable the optimization on bad chipsets on android.

// The X in S6 and S7 annihilate, but they also block the X in S8.S9.
type S5 struct {
	S6
	S7
	S8
}

type S6 struct {
	X int
}

type S7 S6

type S8 struct {
	S9
}

type S9 struct {
	X int
	Y int
}

// From reflect test:
// The X in S11.S6 and S12.S6 annihilate, but they also block the X in S13.S8.S9.
type S10 struct {
	S11
	S12
	S13
}

// (Can adapt this code to generate them too.)
func TestTd(t *testing.T) {
	for i := 0; i < 256; i++ {
		s := uint32(sbox1[i])
		s9 := mul(s, 0x9)
		sb := mul(s, 0xb)
		sd := mul(s, 0xd)
		se := mul(s, 0xe)
		w := se<<24 | s9<<16 | sd<<8 | sb
		td := [][256]uint32{td0, td1, td2, td3}
		for j := 0; j < 4; j++ {
			if x := td[j][i]; x != w {
				t.Fatalf("td[%d][%d] = %#x, want %#x", j, i, x, w)

		0, // i5
		0, // u6
		f7,
		f8,
		0, // s9
		0, // s10
		1
	};

	const char __cgodebug_str__9[] = s9;
	const unsigned long long __cgodebug_strlen__9 = sizeof(s9)-1;
	const char __cgodebug_str__10[] = s10;
	const unsigned long long __cgodebug_strlen__10 = sizeof(s10)-1;

and again invokes the system C compiler, to produce an object file
containing debug information. Cgo parses the DWARF debug information

	A1  uint64
	A2  uint64
	A3  uint64
	A4  uint64
	A5  uint64
	A6  uint64
	A7  uint64
	S2  uint64
	S3  uint64
	S4  uint64
	S5  uint64
	S6  uint64
	S7  uint64
	S8  uint64
	S9  uint64
	S10 uint64
	S11 uint64
	T3  uint64
	T4  uint64
	T5  uint64
	T6  uint64
}

type FdSet struct {
	Bits [16]int64
}

type Sysinfo_t struct {
	Uptime    int64

// The X in S6 and S7 annihilate, but they also block the X in S8.S9.
type S5 struct {
	S6
	S7
	S8
}

type S6 struct {
	X int
}

type S7 S6

type S8 struct {
	S9
}

type S9 struct {
	X int
	Y int
}

// The X in S11.S6 and S12.S6 annihilate, but they also block the X in S13.S8.S9.
type S10 struct {
	S11
	S12
	S13
}

		{`package s8; func _() { f(g, h) }; func f[P any](func(int, P), func(P, string)) {}; func g[P any](P, P) {}; func h[P, Q any](P, Q) {}`, `h`, `func(int, string)`},
		{`package s9; func _() { f(g, h[int]) }; func f[P any](func(int, P), func(P, string)) {}; func g[P any](P, P) {}; func h[P, Q any](P, Q) {}`, `h`, `func[P, Q any](P, Q)`}, // go.dev/issues/60212

		{`package s8; func _() { f(g, h) }; func f[P any](func(int, P), func(P, string)) {}; func g[P any](P, P) {}; func h[P, Q any](P, Q) {}`, `h`, `func(int, string)`},
		{`package s9; func _() { f(g, h[int]) }; func f[P any](func(int, P), func(P, string)) {}; func g[P any](P, P) {}; func h[P, Q any](P, Q) {}`, `h`, `func[P, Q any](P, Q)`}, // go.dev/issues/60212