How to use squashConst method of prog Package

Best Syzkaller code snippet using prog.squashConst

any.go

Source:any.go

...211	case *ConstArg:212		if IsPad(arg.Type()) {213			pad = arg.Size()214		} else {215			v := target.squashConst(arg)216			elem := target.ensureDataElem(elems)217			for i := uint64(0); i < arg.Size(); i++ {218				elem.data = append(elem.Data(), byte(v))219				v >>= 8220			}221		}222	case *ResultArg:223		switch arg.Size() {224		case 2:225			arg.typ = target.any.res16226		case 4:227			arg.typ = target.any.res32228		case 8:229			arg.typ = target.any.res64230		default:231			panic("bad size")232		}233		*elems = append(*elems, MakeUnionArg(target.any.union, arg))234	case *PointerArg:235		if arg.Res != nil {236			target.squashPtr(arg, false)237			*elems = append(*elems, MakeUnionArg(target.any.union, arg))238		} else {239			elem := target.ensureDataElem(elems)240			addr := target.PhysicalAddr(arg)241			for i := uint64(0); i < arg.Size(); i++ {242				elem.data = append(elem.Data(), byte(addr))243				addr >>= 8244			}245		}246	case *UnionArg:247		if !arg.Type().Varlen() {248			pad = arg.Size() - arg.Option.Size()249		}250		target.squashPtrImpl(arg.Option, elems)251	case *DataArg:252		if arg.Type().Dir() == DirOut {253			pad = arg.Size()254		} else {255			elem := target.ensureDataElem(elems)256			elem.data = append(elem.Data(), arg.Data()...)257		}258	case *GroupArg:259		if typ, ok := arg.Type().(*StructType); ok && typ.Varlen() && typ.AlignAttr != 0 {260			var fieldsSize uint64261			for _, fld := range arg.Inner {262				if !fld.Type().BitfieldMiddle() {263					fieldsSize += fld.Size()264				}265			}266			if fieldsSize%typ.AlignAttr != 0 {267				pad = typ.AlignAttr - fieldsSize%typ.AlignAttr268			}269		}270		var bitfield uint64271		for _, fld := range arg.Inner {272			// Squash bitfields separately.273			if bfLen := fld.Type().BitfieldLength(); bfLen != 0 {274				bfOff := fld.Type().BitfieldOffset()275				// Note: we can have a ResultArg here as well,276				// but it is unsupported at the moment.277				v := target.squashConst(fld.(*ConstArg))278				bitfield |= (v & ((1 << bfLen) - 1)) << bfOff279				if !fld.Type().BitfieldMiddle() {280					elem := target.ensureDataElem(elems)281					for i := uint64(0); i < fld.Size(); i++ {282						elem.data = append(elem.Data(), byte(bitfield))283						bitfield >>= 8284					}285					bitfield = 0286				}287				continue288			}289			target.squashPtrImpl(fld, elems)290		}291	default:292		panic("bad arg kind")293	}294	if pad != 0 {295		elem := target.ensureDataElem(elems)296		elem.data = append(elem.Data(), make([]byte, pad)...)297	}298}299func (target *Target) squashConst(arg *ConstArg) uint64 {300	// Note: we need a constant value, but it depends on pid for proc.301	v := arg.ValueForProc(0)302	if _, ok := arg.Type().(*CsumType); ok {303		// We can't compute value for the checksum here,304		// but at least leave something recognizable by hints code.305		v = 0xabcdef1234567890306	}307	return v308}309func (target *Target) ensureDataElem(elems *[]Arg) *DataArg {310	if len(*elems) == 0 {311		res := MakeDataArg(target.any.blob, nil)312		*elems = append(*elems, MakeUnionArg(target.any.union, res))313		return res...

squashConst

Using AI Code Generation

1import (2func main() {3	fset := token.NewFileSet()4	f, err := parser.ParseFile(fset, "1.go", nil, parser.ParseComments)5	if err != nil {6		log.Fatal(err)7	}8	p := prog(fset, f)9	p.squashConst()10	fmt.Println(p)11}12type prog struct {13}14func prog(fset *token.FileSet, f *ast.File) *prog {15	return &prog{fset, f}16}17func (p *prog) squashConst() {18	ast.Inspect(p.f, func(n ast.Node) bool {19		if g, ok := n.(*ast.GenDecl); ok {20			if g.Tok == token.CONST {21				if len(g.Specs) > 1 {22					vs := &ast.ValueSpec{}23					vs = g.Specs[0].(*ast.ValueSpec)24					for _, s := range g.Specs[1:] {25						vs.Names = append(vs.Names, s.(*ast.ValueSpec).Names...)26						vs.Values = append(vs.Values, s.(*ast.ValueSpec).Values...)27					}28					g.Specs = []ast.Spec{vs}29				}30			}31		}32	})33}34func (p *prog) String() string {35	return ast.Print(p.fset, p

squashConst

Using AI Code Generation

1import (2func main() {3	m := ir.NewModule()4	f := m.NewFunc("main", types.I32)5	entry := f.NewBlock("entry")6	c := constant.NewInt(types.I32, 42)7	c1 := constant.NewInt(types.I32, 42)8	c2 := constant.NewInt(types.I32, 42)9	c3 := constant.NewInt(types.I32, 42)10	c4 := constant.NewInt(types.I32, 42)11	c5 := constant.NewInt(types.I32, 42)12	c6 := constant.NewInt(types.I32, 42)13	c7 := constant.NewInt(types.I32, 42)14	c8 := constant.NewInt(types.I32, 42)15	c9 := constant.NewInt(types.I32, 42)16	c10 := constant.NewInt(types.I32, 42)

squashConst

Using AI Code Generation

1import (2func main() {3	f, err := parser.ParseFile(fset, "1.go", nil, parser.ParseComments)4	if err != nil {5		log.Fatal(err)6	}7	fmt.Println("imports:")8	for _, s := range f.Imports {9		fmt.Println(s.Path.Value)10	}11	ast.Fprint(prog, fset, f, astFilter)12}13var astFilter = &printer{mode: modeFilter | modeLineNumbers}14type printer struct {15}16func (p *printer) Filter(node ast.Node) bool {17	if p.mode&modeFilter == 0 {18	}19	switch node.(type) {20	}21}22func (p

squashConst

Using AI Code Generation

1import "fmt"2func main() {3    p := prog{}4    p.squashConst("A")5    p.squashConst("B")6    p.squashConst("C")7    p.squashConst("D")8    p.squashConst("E")9    p.squashConst("F")10    p.squashConst("G")11    p.squashConst("H")12    p.squashConst("I")13    p.squashConst("J")14    p.squashConst("K")15    p.squashConst("L")16    p.squashConst("M")17    p.squashConst("N")18    p.squashConst("O")19    p.squashConst("P")20    p.squashConst("Q")21    p.squashConst("R")22    p.squashConst("S")23    p.squashConst("T")24    p.squashConst("U")25    p.squashConst("V")26    p.squashConst("W")27    p.squashConst("X")28    p.squashConst("Y")29    p.squashConst("Z")30    p.squashConst("A")31    p.squashConst("B")32    p.squashConst("C")33    p.squashConst("D")34    p.squashConst("E")35    p.squashConst("F")36    p.squashConst("G")37    p.squashConst("H")38    p.squashConst("I")39    p.squashConst("J")40    p.squashConst("K")41    p.squashConst("L")42    p.squashConst("M")43    p.squashConst("N")44    p.squashConst("O")45    p.squashConst("P")46    p.squashConst("Q")47    p.squashConst("R")48    p.squashConst("S")49    p.squashConst("T")50    p.squashConst("U")51    p.squashConst("V")52    p.squashConst("W")53    p.squashConst("X")54    p.squashConst("Y")55    p.squashConst("Z")56    fmt.Println(p)57}

squashConst

Using AI Code Generation

1import (2func main() {3	prog := new(Prog)4	prog.squashConst()5	fmt.Println(prog)6}7import (8type Prog struct {9}10func (p *Prog) squashConst() {11	s := stack.New()12	for _, v := range p.prog {13		if v == "+" || v == "-" || v == "*" || v == "/" {14			s.Push(v)15		} else {16			if s.Len() > 0 {17				if s.Peek() == "+" || s.Peek() == "-" || s.Peek() == "*" || s.Peek() == "/" {18					s.Push(v)19				} else {20					top := s.Pop().(string)21					op := s.Pop().(string)22					next := s.Pop().(string)23					res, _ := p.compute(op, top, next)24					s.Push(res)25				}26			} else {27				s.Push(v)28			}29		}30	}31	for s.Len() > 0 {32		p.prog = append(p.prog, s.Pop().(string))33	}34}35func (p *Prog) compute(op, top, next string) (string, error) {36	topVal, err := strconv.Atoi(top)37	if err != nil {38		return "", errors.New("invalid input")39	}40	nextVal, err := strconv.Atoi(next)41	if err != nil {42		return "", errors.New("invalid input")43	}44	switch op {45		res = strconv.Itoa(topVal + nextVal)46		res = strconv.Itoa(topVal - nextVal)47		res = strconv.Itoa(topVal * nextVal)48		if nextVal == 0 {49			return "", errors.New("invalid input")50		}51		res = strconv.Itoa(topVal / next

squashConst

Using AI Code Generation

1import "fmt"2func main() {3	p := prog{4	}5	p.squashConst()6	fmt.Println(p)7}8import "fmt"9func main() {10	p := prog{11	}12	p.squashConst()13	fmt.Println(p)14}15import "fmt"16func main() {17	p := prog{18	}19	p.squashConst()20	fmt.Println(p)21}22import "fmt"23func main() {24	p := prog{25	}26	p.squashConst()27	fmt.Println(p)28}29import "fmt"30func main() {31	p := prog{32	}33	p.squashConst()34	fmt.Println(p)35}36import "fmt"37func main() {38	p := prog{39	}40	p.squashConst()41	fmt.Println(p)42}43import "fmt"44func main() {45	p := prog{46	}

squashConst

Using AI Code Generation

1import "fmt"2func main() {3    p := prog{0, 0}4    p.squashConst()5    fmt.Println(p)6}7import "fmt"8func main() {9    p := prog{0, 0}10    p.squashConst()11    fmt.Println(p)12}13import "fmt"14func main() {15    p := prog{0, 0}16    p.squashConst()17    fmt.Println(p)18}19import "fmt"20func main() {21    p := prog{0, 0}22    p.squashConst()23    fmt.Println(p)24}25import "fmt"26func main() {27    p := prog{0, 0}28    p.squashConst()29    fmt.Println(p)30}31import "fmt"32func main() {33    p := prog{0, 0}34    p.squashConst()35    fmt.Println(p)36}37import "fmt"38func main() {39    p := prog{0, 0}

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