Expr (B2R2) | B2R2

Expr Type

Namespace: B2R2.BinIR.SSA
Assembly: B2R2.BinIR.dll
Base Type: obj
All Interfaces: IEquatable<Expr> , IStructuralEquatable

Represents the SSA IR (Static Single Assignment IR) expressions, which are mostly similar to LowUIR expressions.

Union cases

Union case	Description
`BinOp(BinOpType, RegType, Expr, Expr)` Full Usage: `BinOp(BinOpType, RegType, Expr, Expr)` Parameters: Item1 : `BinOpType` Item2 : `RegType` Item3 : `Expr` Item4 : `Expr`	Binary operation such as add, sub, etc. The second argument is a result type after applying BinOp. Item1 : `BinOpType` Item2 : `RegType` Item3 : `Expr` Item4 : `Expr`
`Cast(CastKind, RegType, Expr)` Full Usage: `Cast(CastKind, RegType, Expr)` Parameters: Item1 : `CastKind` Item2 : `RegType` Item3 : `Expr`	Type casting expression. The first argument is a casting type, and the second argument is a result type. Item1 : `CastKind` Item2 : `RegType` Item3 : `Expr`
`ExprList Expr list` Full Usage: `ExprList Expr list` Parameters: Item : `Expr list`	List of expressions. Item : `Expr list`
`Extract(Expr, RegType, startPos)` Full Usage: `Extract(Expr, RegType, startPos)` Parameters: Item1 : `Expr` Item2 : `RegType` startPos : `int`	Extraction expression. The first argument is target expression, and the second argument is the number of bits for extraction, and the third is the start position. Item1 : `Expr` Item2 : `RegType` startPos : `int`
`FuncName string` Full Usage: `FuncName string` Parameters: Item : `string`	Name of uninterpreted function. Item : `string`
`Ite(Expr, RegType, Expr, Expr)` Full Usage: `Ite(Expr, RegType, Expr, Expr)` Parameters: Item1 : `Expr` Item2 : `RegType` Item3 : `Expr` Item4 : `Expr`	If-then-else expression. The first expression is a condition, second argument is a result type, and the third and the fourth are true and false expression respectively. Item1 : `Expr` Item2 : `RegType` Item3 : `Expr` Item4 : `Expr`
`Load(Variable, RegType, Expr)` Full Usage: `Load(Variable, RegType, Expr)` Parameters: Item1 : `Variable` Item2 : `RegType` Item3 : `Expr`	Memory lookup such as [T_1]:I32 Item1 : `Variable` Item2 : `RegType` Item3 : `Expr`
`Num BitVector` Full Usage: `Num BitVector` Parameters: Item : `BitVector`	A number. For example, (0x42:I32) is a 32-bit number 0x42 Item : `BitVector`
`RelOp(RelOpType, RegType, Expr, Expr)` Full Usage: `RelOp(RelOpType, RegType, Expr, Expr)` Parameters: Item1 : `RelOpType` Item2 : `RegType` Item3 : `Expr` Item4 : `Expr`	Relative operation such as eq, lt, etc. The second argument is a result type. Item1 : `RelOpType` Item2 : `RegType` Item3 : `Expr` Item4 : `Expr`
`Store(Variable, RegType, Expr, Expr)` Full Usage: `Store(Variable, RegType, Expr, Expr)` Parameters: Item1 : `Variable` Item2 : `RegType` Item3 : `Expr` Item4 : `Expr`	Memory update such as [T_1] <- T_2. The second argument is a type of stored value. Item1 : `Variable` Item2 : `RegType` Item3 : `Expr` Item4 : `Expr`
`UnOp(UnOpType, RegType, Expr)` Full Usage: `UnOp(UnOpType, RegType, Expr)` Parameters: Item1 : `UnOpType` Item2 : `RegType` Item3 : `Expr`	Unary operation such as negation. The second argument is a result type. Item1 : `UnOpType` Item2 : `RegType` Item3 : `Expr`
`Undefined(RegType, string)` Full Usage: `Undefined(RegType, string)` Parameters: Item1 : `RegType` Item2 : `string`	Undefined expression. It is a fatal error when we encounter this expression while evaluating a program. This expression is useful when we encode a label that should not really jump to (e.g., divide-by-zero case). Item1 : `RegType` Item2 : `string`
`Var Variable` Full Usage: `Var Variable` Parameters: Item : `Variable`	A variable. Item : `Variable`

Instance members

Instance member	Description
`this.IsBinOp` Full Usage: `this.IsBinOp` Returns: `bool`	Returns: `bool`
`this.IsCast` Full Usage: `this.IsCast` Returns: `bool`	Returns: `bool`
`this.IsExprList` Full Usage: `this.IsExprList` Returns: `bool`	Returns: `bool`
`this.IsExtract` Full Usage: `this.IsExtract` Returns: `bool`	Returns: `bool`
`this.IsFuncName` Full Usage: `this.IsFuncName` Returns: `bool`	Returns: `bool`
`this.IsIte` Full Usage: `this.IsIte` Returns: `bool`	Returns: `bool`
`this.IsLoad` Full Usage: `this.IsLoad` Returns: `bool`	Returns: `bool`
`this.IsNum` Full Usage: `this.IsNum` Returns: `bool`	Returns: `bool`
`this.IsRelOp` Full Usage: `this.IsRelOp` Returns: `bool`	Returns: `bool`
`this.IsStore` Full Usage: `this.IsStore` Returns: `bool`	Returns: `bool`
`this.IsUnOp` Full Usage: `this.IsUnOp` Returns: `bool`	Returns: `bool`
`this.IsUndefined` Full Usage: `this.IsUndefined` Returns: `bool`	Returns: `bool`
`this.IsVar` Full Usage: `this.IsVar` Returns: `bool`	Returns: `bool`

Static members

Static member	Description
`Expr.TypeOf(expr)` Full Usage: `Expr.TypeOf(expr)` Parameters: expr : `Expr` Returns: `RegType`	Returns the type of an SSA expression. expr : `Expr` Returns: `RegType`