return
	}

	print("umtx_sleep addr=", addr, " val=", val, " ret=", ret, "\n")
	*(*int32)(unsafe.Pointer(uintptr(0x1005))) = 0x1005
}

//go:nosplit
func futexwakeup(addr *uint32, cnt uint32) {
	ret := sys_umtx_wakeup(addr, int32(cnt))
	if ret >= 0 {
		return
	}

	systemstack(func() {
		print("umtx_wake_addr=", addr, " ret=", ret, "\n")
		*(*int32)(unsafe.Pointer(uintptr(0x1006))) = 0x1006
	})
}

	m[nan] = 2
	m[nan] += 4

	cnt := 0
	s := 0
	growflag := true
	for k, v := range m {
		if growflag {
			// force a hashtable resize
			for i := 0; i < 50; i++ {
				m[float64(i)] = i
			}
			for i := 50; i < 100; i++ {
				m[float64(i)] += i
			}
			growflag = false
		}
		if k != k {
			cnt++
			s |= v
		}
	}
	if cnt != 3 {
		t.Error("NaN keys lost during grow")

		return
	}
	print("umtx_wait addr=", addr, " val=", val, " ret=", ret, "\n")
	*(*int32)(unsafe.Pointer(uintptr(0x1005))) = 0x1005
}

//go:nosplit
func futexwakeup(addr *uint32, cnt uint32) {
	ret := sys_umtx_op(addr, _UMTX_OP_WAKE_PRIVATE, cnt, 0, nil)
	if ret >= 0 {
		return
	}

	systemstack(func() {
		print("umtx_wake_addr=", addr, " ret=", ret, "\n")
	})
}

func thr_start()

func reasonsUpdated(req *model.PushRequest) string {
	var (
		reason0, reason1            model.TriggerReason
		reason0Cnt, reason1Cnt, idx int
	)
	for r, cnt := range req.Reason {
		if idx == 0 {
			reason0, reason0Cnt = r, cnt
		} else if idx == 1 {
			reason1, reason1Cnt = r, cnt
		} else {
			break
		}
		idx++
	}

	switch len(req.Reason) {
	case 0:
		return "unknown"
	case 1:

    // down as arguments to avoid relying on shared variables.
    const std::string name = GetConstOpName(const_op);
    const int cnt = name_counts[name]++;

    // Creates a unique name by appending its occurrence count.
    const auto shared_name = absl::StrCat(name, "_", cnt);
    const_op_name_map[const_op] = shared_name;

    // Creates a VarHandleOp -> ReadVariableOp pair for each ConstOp.

	if err != nil {
		Close(fd2)
		return 0, err
	}
	defer closedir(d)

	var cnt int64
	for {
		var entry Dirent
		var entryp *Dirent
		e := readdir_r(d, &entry, &entryp)
		if e != 0 {
			return n, errnoErr(e)
		}
		if entryp == nil {
			break
		}
		if skip > 0 {
			skip--
			cnt++
			continue
		}

		reclen := int(entry.Reclen)
		if reclen > len(buf) {

  EXPECT_EQ(grad_result[0].NumElements(), 1);
  EXPECT_EQ(grad_result[0].flat<float>()(0), 17610.0f);
}

TEST_F(GradientsTest, AddSymbolicGradientsTest) {
  Scope scope = Scope::NewRootScope();
  for (int cnt = 0; cnt < 100; ++cnt) {
    int N = 5 + rand() % 10;
    // Construct forward graph.
    OutputList inputs;
    for (int i = 0; i < N; ++i) {
      auto a = Const(scope, i, {1});
      inputs.push_back(a);
    }

//
// H0 = a + H0
// H1 = b + H1
// H2 = c + H2
// H3 = d + H3
// H4 = e + H4
// H5 = f + H5
// H6 = g + H6
// H7 = h + H7

#define CTX	R3
#define INP	R4
#define END	R5
#define TBL	R6
#define CNT	R8
#define LEN	R9
#define TEMP	R12

#define TBL_STRT R7 // Pointer to start of kcon table.

#define R_x000	R0
#define R_x010	R10
#define R_x020	R25
#define R_x030	R26
#define R_x040	R14

	ts.setNsec(ns)
	futex(unsafe.Pointer(addr), _FUTEX_WAIT_PRIVATE, val, unsafe.Pointer(&ts), nil, 0)
}

// If any procs are sleeping on addr, wake up at most cnt.
//
//go:nosplit
func futexwakeup(addr *uint32, cnt uint32) {
	ret := futex(unsafe.Pointer(addr), _FUTEX_WAKE_PRIVATE, cnt, nil, nil, 0)
	if ret >= 0 {
		return
	}

	// I don't know that futex wakeup can return
	// EAGAIN or EINTR, but if it does, it would be

		}

		if match > 0 {
			if err := r.copyFromWindow(&rbr, offset, match); err != nil {
				return err
			}
		}
	}

	r.buffer = append(r.buffer, litbuf...)

	if rbr.cnt != 0 {
		return r.makeError(off, "extraneous data after sequences")
	}

	return nil
}

// Copy match bytes from the decoded output, or the window, at offset.