How to use swap64 method of prog Package

Best Syzkaller code snippet using prog.swap64

mutation.go

Source:mutation.go

...543	v |= uint32(v1) << 16544	v |= uint32(v0) << 24545	return v546}547func swap64(v uint64) uint64 {548	v0 := byte(v >> 0)549	v1 := byte(v >> 8)550	v2 := byte(v >> 16)551	v3 := byte(v >> 24)552	v4 := byte(v >> 32)553	v5 := byte(v >> 40)554	v6 := byte(v >> 48)555	v7 := byte(v >> 56)556	v = 0557	v |= uint64(v7) << 0558	v |= uint64(v6) << 8559	v |= uint64(v5) << 16560	v |= uint64(v4) << 24561	v |= uint64(v3) << 32562	v |= uint64(v2) << 40563	v |= uint64(v1) << 48564	v |= uint64(v0) << 56565	return v566}567func mutateData(r *randGen, data []byte, minLen, maxLen uint64) []byte {568	const maxInc = 35569	retry := false570loop:571	for stop := false; !stop || retry; stop = r.oneOf(3) {572		retry = false573		switch r.Intn(13) {574		case 0:575			// Append byte.576			if uint64(len(data)) >= maxLen {577				retry = true578				continue loop579			}580			data = append(data, byte(r.rand(256)))581		case 1:582			// Remove byte.583			if len(data) == 0 || uint64(len(data)) <= minLen {584				retry = true585				continue loop586			}587			i := r.Intn(len(data))588			copy(data[i:], data[i+1:])589			data = data[:len(data)-1]590		case 2:591			// Replace byte with random value.592			if len(data) == 0 {593				retry = true594				continue loop595			}596			data[r.Intn(len(data))] = byte(r.rand(256))597		case 3:598			// Flip bit in byte.599			if len(data) == 0 {600				retry = true601				continue loop602			}603			byt := r.Intn(len(data))604			bit := r.Intn(8)605			data[byt] ^= 1 << uint(bit)606		case 4:607			// Swap two bytes.608			if len(data) < 2 {609				retry = true610				continue loop611			}612			i1 := r.Intn(len(data))613			i2 := r.Intn(len(data))614			data[i1], data[i2] = data[i2], data[i1]615		case 5:616			// Add / subtract from a byte.617			if len(data) == 0 {618				retry = true619				continue loop620			}621			i := r.Intn(len(data))622			delta := byte(r.rand(2*maxInc+1) - maxInc)623			if delta == 0 {624				delta = 1625			}626			data[i] += delta627		case 6:628			// Add / subtract from a uint16.629			if len(data) < 2 {630				retry = true631				continue loop632			}633			i := r.Intn(len(data) - 1)634			p := (*uint16)(unsafe.Pointer(&data[i]))635			delta := uint16(r.rand(2*maxInc+1) - maxInc)636			if delta == 0 {637				delta = 1638			}639			if r.bin() {640				*p += delta641			} else {642				*p = swap16(swap16(*p) + delta)643			}644		case 7:645			// Add / subtract from a uint32.646			if len(data) < 4 {647				retry = true648				continue loop649			}650			i := r.Intn(len(data) - 3)651			p := (*uint32)(unsafe.Pointer(&data[i]))652			delta := uint32(r.rand(2*maxInc+1) - maxInc)653			if delta == 0 {654				delta = 1655			}656			if r.bin() {657				*p += delta658			} else {659				*p = swap32(swap32(*p) + delta)660			}661		case 8:662			// Add / subtract from a uint64.663			if len(data) < 8 {664				retry = true665				continue loop666			}667			i := r.Intn(len(data) - 7)668			p := (*uint64)(unsafe.Pointer(&data[i]))669			delta := r.rand(2*maxInc+1) - maxInc670			if delta == 0 {671				delta = 1672			}673			if r.bin() {674				*p += delta675			} else {676				*p = swap64(swap64(*p) + delta)677			}678		case 9:679			// Set byte to an interesting value.680			if len(data) == 0 {681				retry = true682				continue loop683			}684			data[r.Intn(len(data))] = byte(r.randInt())685		case 10:686			// Set uint16 to an interesting value.687			if len(data) < 2 {688				retry = true689				continue loop690			}691			i := r.Intn(len(data) - 1)692			value := uint16(r.randInt())693			if r.bin() {694				value = swap16(value)695			}696			*(*uint16)(unsafe.Pointer(&data[i])) = value697		case 11:698			// Set uint32 to an interesting value.699			if len(data) < 4 {700				retry = true701				continue loop702			}703			i := r.Intn(len(data) - 3)704			value := uint32(r.randInt())705			if r.bin() {706				value = swap32(value)707			}708			*(*uint32)(unsafe.Pointer(&data[i])) = value709		case 12:710			// Set uint64 to an interesting value.711			if len(data) < 8 {712				retry = true713				continue loop714			}715			i := r.Intn(len(data) - 7)716			value := r.randInt()717			if r.bin() {718				value = swap64(value)719			}720			*(*uint64)(unsafe.Pointer(&data[i])) = value721		default:722			panic("bad")723		}724	}725	return data726}...

swap64

Using AI Code Generation

1import "fmt"2import "prog"3func main() {4    fmt.Printf("a=%x5    fmt.Printf("b=%x6    prog.Swap64(&a, &b)7    fmt.Printf("a=%x8    fmt.Printf("b=%x9}10func Swap64(a *uint64, b *uint64) {11}

swap64

Using AI Code Generation

1import (2func main() {3    fmt.Println("Before swap")4    fmt.Println("x = ", x, "y = ", y)5    prog.Swap64(&x, &y)6    fmt.Println("After swap")7    fmt.Println("x = ", x, "y = ", y)8}

swap64

Using AI Code Generation

1import "fmt"2func main() {3    fmt.Println("Before swap: a = ", a, " b = ", b)4    prog.swap64(&a, &b)5    fmt.Println("After swap: a = ", a, " b = ", b)6}7TEXT ·swap64(SB),NOSPLIT,$0-168    MOVQ (SP), BX9    MOVQ 8(SP), AX10    MOVQ AX, (SP)11    MOVQ BX, 8(SP)12        0x0000 00000 (2.go:4)       TEXT    "".swap64(SB), NOSPLIT|ABIInternal, $16-013        0x0000 00000 (2.go:4)       FUNCDATA        $0, gclocals·33cdeccccebe80329f1fdbee7f5874cb(SB)14        0x0000 00000 (2.go:4)       FUNCDATA        $1, gclocals·33cdeccccebe80329f1fdbee7f5874cb(SB)15        0x0000 00000 (2.go:5)       MOVQ    16(SP), BX16        0x0005 00005 (2.go:5)       MOVQ    24(SP), AX17        0x000a 00010 (2.go:6)       MOVQ    AX, 16(SP)18        0x000f 00015 (2.go:6)       MOVQ    BX, 24(SP)19        0x0014 00020 (2.go:7)       RET20        0x0000 48 8b 5c 24 10       MOVQ    0x10(SP), BX21        0x0005 48 8b 44 24 18       MOVQ    0x18(SP), AX22        0x000a 48 89 5c 24 10       MOVQ    BX, 0x10(SP)

swap64

Using AI Code Generation

1import "fmt"2func main() {3    fmt.Println("Before swap: a =", a, "b =", b)4    prog.swap64(&a, &b)5    fmt.Println("After swap: a =", a, "b =", b)6}7import "fmt"8func main() {9    fmt.Println("Before swap: a =", a, "b =", b)10    prog.swap64(&a, &b)11    fmt.Println("After swap: a =", a, "b =", b)12}13import "fmt"14func main() {15    fmt.Println("Before swap: a =", a, "b =", b)16    prog.swap64(&a, &b)17    fmt.Println("After swap: a =", a, "b =", b)18}19import "fmt"20func main() {21    fmt.Println("Before swap: a =", a, "b =", b)22    prog.swap64(&a, &b)23    fmt.Println("After swap: a =", a, "b =", b)24}25import "fmt"26func main() {27    fmt.Println("Before swap: a =", a, "b =", b)28    prog.swap64(&a, &b)29    fmt.Println("After swap: a =", a, "b =", b)30}31import "fmt"32func main() {33    fmt.Println("Before swap: a =", a, "b =", b)34    prog.swap64(&a, &b)35    fmt.Println("After swap: a =", a, "b =", b)36}

swap64

Using AI Code Generation

1import "fmt"2func main() {3    fmt.Println("a, b, c = ", a, b, c)4    prog.swap64(&a, &b, &c)5    fmt.Println("a, b, c = ", a, b, c)6}7import "fmt"8func main() {9    fmt.Println("a, b, c = ", a, b, c)10    prog.swap64(&a, &b, &c)11    fmt.Println("a, b, c = ", a, b, c)12}

swap64

Using AI Code Generation

1import (2func main() {3    fmt.Println("Hello, playground")4    x := uint64(0x1234567890ABCDEF)5    fmt.Printf("x = %x6    y := swap64(x)7    fmt.Printf("y = %x8}9import (10func main() {11    fmt.Println("Hello, playground")12    x := uint64(0x1234567890ABCDEF)13    fmt.Printf("x = %x14    y := swap64(x)15    fmt.Printf("y = %x16}17import (18func main() {19    fmt.Println("Hello, playground")20    x := uint64(0x1234567890ABCDEF)21    fmt.Printf("x = %x22    y := swap64(x)23    fmt.Printf("y = %x24}25import (26func main() {27    fmt.Println("Hello, playground")28    x := uint64(0x1234567890ABCDEF)29    fmt.Printf("x = %x30    y := swap64(x)31    fmt.Printf("y = %x32}33import (34func main() {35    fmt.Println("Hello, playground")36    x := uint64(0x1234567890ABCDEF)37    fmt.Printf("x = %x38    y := swap64(x)39    fmt.Printf("y = %x40}41import (42func main() {43    fmt.Println("Hello, playground")44    x := uint64(0x1234567890ABCDEF)45    fmt.Printf("x = %x46    y := swap64(x)47    fmt.Printf("y = %

swap64

Using AI Code Generation

1import (2func main() {3        fmt.Println("Before swap a=", a, "b=", b)4        prog.swap64(&a, &b)5        fmt.Println("After swap a=", a, "b=", b)6}7func swap64(a *int64, b *int64) {8}

swap64

Using AI Code Generation

1import (2func main() {3    fmt.Println(stringutil.Reverse("Hello, world!"))4}5import (6func main() {7    fmt.Println(stringutil.Reverse("Hello, world!"))8}9import (10func main() {11    fmt.Println(stringutil.Reverse("Hello, world!"))12}13import (14func main() {15    fmt.Println(stringutil.Reverse("Hello, world!"))16}17import (18func main() {19    fmt.Println(stringutil.Reverse("Hello, world!"))20}21import (22func main() {23    fmt.Println(stringutil.Reverse("Hello, world!"))24}25import (26func main() {27    fmt.Println(stringutil.Reverse("Hello, world!"))28}29import (30func main() {31    fmt.Println(stringutil.Reverse("Hello, world!"))32}33import (34func main() {35    fmt.Println(stringutil.Reverse("Hello, world!"))36}

swap64

Using AI Code Generation

1import (2func main() {3    fmt.Println(gol.Swap64(123))4}5func Swap64(i int64) int646func Swap64(i int64) int647Package gol imports 1 packages (graph) and

swap64

Using AI Code Generation

1import (2func main() {3	fmt.Println("main method started")4	a := prog{}5	fmt.Println(a.swap64(10, 20))6	fmt.Println("main method ended")7}8import (9type prog struct {10}11func (p prog) swap64(a, b int64) (int64, int64) {12	fmt.Println(a, b)13}14import (15func main() {16	fmt.Println("main method started")17	a := prog{}18	fmt.Println(a.swap(10, 20))19	fmt.Println("main method ended")20}21import (22type prog struct {23}24func (p prog) swap(a, b int) (int, int) {25	fmt.Println(a, b)26}27import (28func main() {29	fmt.Println("main method started")30	fmt.Println(a, b)31	fmt.Println(a, b)32	fmt.Println("main method ended")33}34import (35type prog struct {36}37func (p prog) swap(a, b int) (int, int) {38	fmt.Println(a, b)39}40func main() {41	fmt.Println("main method started")42	a := prog{}43	fmt.Println(a.swap(10, 20))

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