func stack1796() { var buf [1796]byte; use(buf[:]); C.callGoStackCheck() }
func stack1800() { var buf [1800]byte; use(buf[:]); C.callGoStackCheck() }
func stack1804() { var buf [1804]byte; use(buf[:]); C.callGoStackCheck() }
func stack1808() { var buf [1808]byte; use(buf[:]); C.callGoStackCheck() }
func stack1812() { var buf [1812]byte; use(buf[:]); C.callGoStackCheck() }

pkg syscall (netbsd-arm64-cgo), const B150 = 150
pkg syscall (netbsd-arm64-cgo), const B150 ideal-int
pkg syscall (netbsd-arm64-cgo), const B1800 = 1800
pkg syscall (netbsd-arm64-cgo), const B1800 ideal-int
pkg syscall (netbsd-arm64-cgo), const B19200 = 19200
pkg syscall (netbsd-arm64-cgo), const B19200 ideal-int
pkg syscall (netbsd-arm64-cgo), const B200 = 200
pkg syscall (netbsd-arm64-cgo), const B200 ideal-int

	b1.WriteString(strings.Repeat("x", 1200))
	b1.Flush()
	if w1 != 1 {
		t.Fatalf("flush 1200 'x's: got %d writes, want 1", w1)
	}
	b1.WriteString(strings.Repeat("x", 89))
	if w1 != 1 {
		t.Fatalf("write 1200 + 89 'x's: got %d writes, want 1", w1)
	}
	io.Copy(b1, onlyReader{strings.NewReader(strings.Repeat("x", 700))})
	if w1 != 1 {
		t.Fatalf("write 1200 + 789 'x's: got %d writes, want 1", w1)
	}

	tmp := make([]byte, 72)
	for _, growLen := range []int{0, 100, 1000, 10000, 100000} {
		for _, startLen := range []int{0, 100, 1000, 10000, 100000} {
			xBytes := Repeat(x, startLen)

			buf := NewBuffer(xBytes)
			// If we read, this affects buf.off, which is good to test.
			readBytes, _ := buf.Read(tmp)
			yBytes := Repeat(y, growLen)
			allocs := testing.AllocsPerRun(100, func() {
				buf.Grow(growLen)
				buf.Write(yBytes)

		t.Skipf("skipping flaky test on %s; see golang.org/issue/18202", runtime.GOOS)
	}

	if runtime.GOARCH == "mips" || runtime.GOARCH == "mips64" {
		t.Skipf("skipping on %s", runtime.GOARCH)
	}

	attempts := 1000
	threads := 4

	// Restrict the number of attempts based on RLIMIT_NPROC.
	// Tediously, RLIMIT_NPROC was left out of the syscall package,
	// probably because it is not in POSIX.1, so we define it here.

					},

					// func walltime() (sec int64, nsec int32)
					"runtime.walltime": (sp) => {
						sp >>>= 0;
						const msec = (new Date).getTime();
						setInt64(sp + 8, msec / 1000);
						this.mem.setInt32(sp + 16, (msec % 1000) * 1000000, true);
					},

					// func scheduleTimeoutEvent(delay int64) int32
					"runtime.scheduleTimeoutEvent": (sp) => {
						sp >>>= 0;
						const id = this._nextCallbackTimeoutID;

	{"$0x02", "$2"},
	{"$0x04", "$4"},
	{"$0x3FE", "$1022"},
	{"$0x7fffffe00000", "$140737486258176"},
	{"$0xfffffffffffff001", "$-4095"},
	{"$1", "$1"},
	{"$1.0", "$(1.0)"},
	{"$10", "$10"},
	{"$1000", "$1000"},
	{"$1000000", "$1000000"},
	{"$1000000000", "$1000000000"},
	{"$__tsan_func_enter(SB)", "$__tsan_func_enter(SB)"},
	{"$main(SB)", "$main(SB)"},
	{"$masks<>(SB)", "$masks<>(SB)"},

a <a href="#Run_time_panics">run-time panic</a> occurs.
</p>

<pre>
s := make([]int, 10, 100)       // slice with len(s) == 10, cap(s) == 100
s := make([]int, 1e3)           // slice with len(s) == cap(s) == 1000
s := make([]int, 1&lt;&lt;63)         // illegal: len(s) is not representable by a value of type int
s := make([]int, 10, 0)         // illegal: len(s) > cap(s)

	MOVD	$-0x1(R7), R1                 // MOVD	$-1(R7), R1                 // e10400d1
	MOVD	$-0x30(R7), R1                // MOVD	$-48(R7), R1                // e1c000d1
	MOVD	$-0x708(R7), R1               // MOVD	$-1800(R7), R1              // e1201cd1
	MOVD	$-0x2000(RSP), R1             // MOVD	$-8192(RSP), R1             // e10b40d1
	MOVD	$-0x10000(RSP), RSP           // MOVD	$-65536(RSP), RSP           // ff4340d1
	MOVW	R1, R2
	MOVW	ZR, R1

pkg syscall (darwin-arm64), const B150 = 150
pkg syscall (darwin-arm64), const B150 ideal-int
pkg syscall (darwin-arm64), const B1800 = 1800
pkg syscall (darwin-arm64), const B1800 ideal-int
pkg syscall (darwin-arm64), const B19200 = 19200
pkg syscall (darwin-arm64), const B19200 ideal-int
pkg syscall (darwin-arm64), const B200 = 200
pkg syscall (darwin-arm64), const B200 ideal-int