break SuffixLoop
			}
		}
	}

	if needSuffix {
		switch inst.Op {
		case CMPXCHG8B, FLDCW, FNSTCW, FNSTSW, LDMXCSR, LLDT, LMSW, LTR, PCLMULQDQ,
			SETA, SETAE, SETB, SETBE, SETE, SETG, SETGE, SETL, SETLE, SETNE, SETNO, SETNP, SETNS, SETO, SETP, SETS,
			SLDT, SMSW, STMXCSR, STR, VERR, VERW:
			// For various reasons, libopcodes emits no suffix for these instructions.

		case CRC32:

		_ = syscall.Flock_t{
			Type:   int16(0),
			Whence: int16(0),
			Start:  int64(0),
			Len:    int64(0),
			Pid:    int32(0),
		}
	)
	const (
		_ = syscall.F_GETLK
		_ = syscall.F_SETLK
		_ = syscall.F_SETLKW
	)
}

// TestFcntlFlock tests whether the file locking structure matches
// the calling convention of each kernel.
// On some Linux systems, glibc uses another set of values for the

		{name: "SETNE", argLength: 1, reg: readflags, asm: "SETNE"}, // extract != condition from arg0
		{name: "SETL", argLength: 1, reg: readflags, asm: "SETLT"},  // extract signed < condition from arg0
		{name: "SETLE", argLength: 1, reg: readflags, asm: "SETLE"}, // extract signed <= condition from arg0
		{name: "SETG", argLength: 1, reg: readflags, asm: "SETGT"},  // extract signed > condition from arg0

		0x0F=4 more bits of limit
	1 byte: 8 more bits of base

int i386_get_ldt(int, union ldt_entry *, int);
int i386_set_ldt(int, const union ldt_entry *, int);

*/

// setldt(int entry, int address, int limit)
TEXT runtime·setldt(SB),NOSPLIT,$32
	MOVL	base+4(FP), BX
	// see comment in sys_linux_386.s; freebsd is similar
	ADDL	$0x4, BX

	// set up data_desc

TEXT ·StoreRel64(SB), NOSPLIT, $0-16
	B	·Store64(SB)

TEXT ·StoreReluintptr(SB), NOSPLIT, $0-16
	B	·Store64(SB)

TEXT ·Store(SB), NOSPLIT, $0-12
	MOVD	ptr+0(FP), R0
	MOVW	val+8(FP), R1
	STLRW	R1, (R0)
	RET

TEXT ·Store8(SB), NOSPLIT, $0-9
	MOVD	ptr+0(FP), R0
	MOVB	val+8(FP), R1
	STLRB	R1, (R0)
	RET

TEXT ·Store64(SB), NOSPLIT, $0-16
	MOVD	ptr+0(FP), R0
	MOVD	val+8(FP), R1

		name, offset, _, _, _ := local.lookup(t.unixSec())
		if offset == zoneOffset && (zoneName == "" || name == zoneName) {
			t.setLoc(local)
			return t, nil
		}

		// Otherwise create fake zone to record offset.
		zoneNameCopy := stringslite.Clone(zoneName) // avoid leaking the input value
		t.setLoc(FixedZone(zoneNameCopy, zoneOffset))
		return t, nil
	}

	if zoneName != "" {

 func (v <type 1>) SetBytes (x <type 56 [] <type -20>>);
 func (v <type 1>) SetComplex (x <type -18>);
 func (v <type 1>) SetFloat (x <type -10>);
 func (v <type 1>) SetInt (x <type -4>);
 func (v <type 1>) SetLen (n <type -11>);
 func (v <type 1>) SetMapIndex (key <type 1>, val <type 1>);
 func (v <type 1>) SetUint (x <type -8>);
 func (v <type 1>) SetPointer (x <type 7>);
 func (v <type 1>) SetString (x <type -16>);

		{name: "SETNE", argLength: 1, reg: readflags, asm: "SETNE"}, // extract != condition from arg0
		{name: "SETL", argLength: 1, reg: readflags, asm: "SETLT"},  // extract signed < condition from arg0
		{name: "SETLE", argLength: 1, reg: readflags, asm: "SETLE"}, // extract signed <= condition from arg0
		{name: "SETG", argLength: 1, reg: readflags, asm: "SETGT"},  // extract signed > condition from arg0

	var iov Iovec
	iov.Base = (*byte)(unsafe.Pointer(regsout))
	iov.SetLen(int(unsafe.Sizeof(*regsout)))
	return ptracePtr(PTRACE_GETREGSET, pid, uintptr(elfNT_PRSTATUS), unsafe.Pointer(&iov))
}

func PtraceSetRegs(pid int, regs *PtraceRegs) (err error) {
	var iov Iovec
	iov.Base = (*byte)(unsafe.Pointer(regs))
	iov.SetLen(int(unsafe.Sizeof(*regs)))

	vs := ValueOf(&xs).Elem()
	shouldPanic("SetLen", func() { vs.SetLen(10) })
	shouldPanic("SetCap", func() { vs.SetCap(10) })
	shouldPanic("SetLen", func() { vs.SetLen(-1) })
	shouldPanic("SetCap", func() { vs.SetCap(-1) })
	shouldPanic("SetCap", func() { vs.SetCap(6) }) // smaller than len
	vs.SetLen(5)
	if len(xs) != 5 || cap(xs) != 8 {
		t.Errorf("after SetLen(5), len, cap = %d, %d, want 5, 8", len(xs), cap(xs))
	}