CALL	runtime·findnull(SB)
	MOVL	4(SP), AX
	MOVL	AX, ret_len+4(FP)
	MOVL	0(SP), AX
	MOVL	AX, ret_base+0(FP)
	RET

// never called on this platform
TEXT ·sigpanictramp(SB),NOSPLIT,$0-0

	CALL	runtime·findnull(SB)
	MOVQ	8(SP), AX
	MOVQ	AX, ret_len+8(FP)
	MOVQ	0(SP), AX
	MOVQ	AX, ret_base+0(FP)
	RET

// never called on this platform
TEXT ·sigpanictramp(SB),NOSPLIT,$0-0

    TF_CALL_qint16(CASE);
    default:
      status->status =
          absl::UnimplementedError(absl::StrCat("Unexpected type ", dtype));
      return;
  }
  TF_SetStatus(status, TF_OK, "");
}
#undef CASE

}  // namespace
}  // namespace tensorflow

namespace {
const tensorflow::AttrValue* GetAttrValue(TF_OpKernelConstruction* ctx,
                                          const char* attr_name,

TF_ENUM_VALUE_OF(impl::None, NONE);
TF_ENUM_VALUE_OF(impl::Func, FUNC);
TF_ENUM_VALUE_OF(impl::String, STRING);
TF_ENUM_VALUE_OF(impl::TaggedValueTensor, TENSOR);
TF_ENUM_VALUE_OF(impl::TensorSpec, TENSOR_SPEC);
#undef TF_ENUM_VALUE_OF

#define TF_UNION_ACCESS_INSTANCE(TYPE, MEMBER)                               \
  template <>                                                                \

// at the top of the system stack because the one at the top of
// the system stack terminates the stack walk (see topofstack()).
TEXT runtime·systemstack_switch(SB), NOSPLIT, $0-0
	UNDEF
	JAL	(R1)	// make sure this function is not leaf
	RET

// func systemstack(fn func())
TEXT runtime·systemstack(SB), NOSPLIT, $0-8
	MOVV	fn+0(FP), R19	// R19 = fn
	MOVV	R19, REGCTXT		// context

	// We have several undefs here so that 16 bytes past
	// $runtime·systemstack_switch lies within them whether or not the
	// instructions that derive r2 from r12 are there.
	UNDEF
	UNDEF
	UNDEF
	BL	(LR)	// make sure this function is not leaf
	RET

// func systemstack(fn func())
TEXT runtime·systemstack(SB), NOSPLIT, $0-8
	MOVD	fn+0(FP), R3	// R3 = fn
	MOVD	R3, R11		// context

	l.restore()

	p("MOVW %d(R13), R14", lfp.stack)     // sigctxt.pushCall pushes LR on stack, restore it
	p("MOVW.P %d(R13), R15", lfp.stack+4) // load PC, pop frame (including the space pushed by sigctxt.pushCall)
	p("UNDEF")                            // shouldn't get here
}

func genARM64() {
	// Add integer registers R0-R26
	// R27 (REGTMP), R28 (g), R29 (FP), R30 (LR), R31 (SP) are special
	// and not saved here.

// at the top of the system stack because the one at the top of
// the system stack terminates the stack walk (see topofstack()).
TEXT runtime·systemstack_switch(SB), NOSPLIT, $0-0
	UNDEF
	JALR	RA, ZERO	// make sure this function is not leaf
	RET

// func systemstack(fn func())
TEXT runtime·systemstack(SB), NOSPLIT, $0-8
	MOV	fn+0(FP), CTXT	// CTXT = fn
	MOV	g_m(g), T0	// T0 = m

		// reason the init code changes evaluation order.
		// See issue 57411.
		_, file, line, ok := runtime.Caller(2)
		if !ok {
			file = "?"
			line = 0
		}
		if f.undef == nil {
			f.undef = map[string]string{}
		}
		f.undef[name] = fmt.Sprintf("%s:%d", file, line)

		return fmt.Errorf("no such flag -%v", name)
	}
	err := flag.Value.Set(value)
	if err != nil {
		return err
	}

	MOVD	F4, 1(F5)		// a404c02b
	MOVW	R4, F5			// 85a41401
	MOVW	F4, R5			// 85b41401
	MOVV	R4, F5			// 85a81401
	MOVV	F4, R5			// 85b81401
	WORD	$74565			// 45230100
	BREAK				// 00002a00
	UNDEF				// 00002a00

	// mul
	MUL	R4, R5	  		// a5101c00
	MUL	R4, R5, R6	  	// a6101c00
	MULV	R4, R5	   		// a5901d00
	MULV	R4, R5, R6	   	// a6901d00
	MULVU	R4, R5			// a5901d00
	MULVU	R4, R5, R6		// a6901d00