for i := 0; i < int(s.Nsect); i++ {
				var sh32 Section32
				if err := binary.Read(b, bo, &sh32); err != nil {
					return nil, err
				}
				sh := new(Section)
				sh.Name = cstring(sh32.Name[0:])
				sh.Seg = cstring(sh32.Seg[0:])
				sh.Addr = uint64(sh32.Addr)
				sh.Size = uint64(sh32.Size)
				sh.Offset = sh32.Offset
				sh.Align = sh32.Align
				sh.Reloff = sh32.Reloff
				sh.Nreloc = sh32.Nreloc

// e.g (Rsh64x64 <t> n (Const64 <typ.UInt64> [63])) && ft.isNonNegative(n) -> 0
func sh64(n int64) int64 {
	if n < 0 {
		return n
	}
	return n >> 63 // ERROR "Proved Rsh64x64 shifts to zero"
}

func sh32(n int32) int32 {
	if n < 0 {
		return n
	}
	return n >> 31 // ERROR "Proved Rsh32x64 shifts to zero"
}

func sh32x64(n int32) int32 {
	if n < 0 {
		return n
	}

			!read(&oh32.FileAlignment) ||
			!read(&oh32.MajorOperatingSystemVersion) ||
			!read(&oh32.MinorOperatingSystemVersion) ||
			!read(&oh32.MajorImageVersion) ||
			!read(&oh32.MinorImageVersion) ||
			!read(&oh32.MajorSubsystemVersion) ||
			!read(&oh32.MinorSubsystemVersion) ||
			!read(&oh32.Win32VersionValue) ||
			!read(&oh32.SizeOfImage) ||
			!read(&oh32.SizeOfHeaders) ||
			!read(&oh32.CheckSum) ||
			!read(&oh32.Subsystem) ||

ssh-ed25519
******@****.***
sk-ecdsa-sha2******@****.***
ecdsa-sha2-nistp256
ecdsa-sha2-nistp384
ecdsa-sha2-nistp521
rsa-sha2-256
rsa-sha2-512
ssh-rsa
ssh-dss
```

`--sftp=kex-algos=...` specifies the supported key-exchange algorithms in preference order.

Valid values: 

```
curve25519-sha256
******@****.***
ecdh-sha2-nistp256
ecdh-sha2-nistp384

// CHECK:         %[[CONVERT_0:.*]] = u8[] convert(f32[] %[[ROUND]])
// CHECK:         %[[CONVERT_1:.*]] = s32[] convert(u8[] %[[CONVERT_0]])
// CHECK:         %[[SUB:.*]] = s32[] subtract(s32[] %[[CONVERT_1]],
// CHECK:         %[[CONVERT_2:.*]] = f32[] convert(s32[] %[[SUB]])
// CHECK:         %[[MUL:.*]] = f32[] multiply(f32[] %[[CONVERT_2]],

	io.WriteString(h, f.Funcname)
	io.WriteString(h, f.Srcfile)
	for _, u := range f.Units {
		h32(u.StLine, h, tmp)
		h32(u.StCol, h, tmp)
		h32(u.EnLine, h, tmp)
		h32(u.EnCol, h, tmp)
		h32(u.NxStmts, h, tmp)
	}
	lit := uint32(0)
	if f.Lit {
		lit = 1
	}
	h32(lit, h, tmp)

// because they have reached the end of their useful life.
// https://cs.opensource.google/go/x/crypto/+/refs/tags/v0.22.0:ssh/common.go;l=85
var supportedMACs = []string{
	"hmac-sha2******@****.***", "hmac-sha2******@****.***", "hmac-sha2-256", "hmac-sha2-512", "hmac-sha1", "hmac-sha1-96",
}

func sshPubKeyAuth(c ssh.ConnMetadata, key ssh.PublicKey) (*ssh.Permissions, error) {
	return authenticateSSHConnection(c, key, nil)
}

const CacheLinePadSize = 128

func doinit() {
	options = []option{
		{Name: "aes", Feature: &ARM64.HasAES},
		{Name: "pmull", Feature: &ARM64.HasPMULL},
		{Name: "sha1", Feature: &ARM64.HasSHA1},
		{Name: "sha2", Feature: &ARM64.HasSHA2},
		{Name: "sha512", Feature: &ARM64.HasSHA512},
		{Name: "crc32", Feature: &ARM64.HasCRC32},
		{Name: "atomics", Feature: &ARM64.HasATOMICS},
		{Name: "cpuid", Feature: &ARM64.HasCPUID},

  CHECK_OK(pjrt_client.status());
  auto c_api_client = down_cast<xla::PjRtCApiClient*>(pjrt_client->get());
  std::vector<int32_t> data(1, 0);
  xla::Shape shape = xla::ShapeUtil::MakeShape(xla::S32, {1});

  auto buffer = c_api_client->pjrt_c_client()->client->BufferFromHostBuffer(
      data.data(), shape.element_type(), shape.dimensions(),
      /*byte_strides=*/std::nullopt,

	case ACRC32B:
		return S32 | OPDP2(16)

	case ACRC32H:
		return S32 | OPDP2(17)

	case ACRC32W:
		return S32 | OPDP2(18)

	case ACRC32X:
		return S64 | OPDP2(19)

	case ACRC32CB:
		return S32 | OPDP2(20)

	case ACRC32CH:
		return S32 | OPDP2(21)

	case ACRC32CW:
		return S32 | OPDP2(22)

	case ACRC32CX:
		return S64 | OPDP2(23)