public void DivideByZero()
{
var builderPair = GetSimpleAndConstantFoldingBuilder();
var cfb = builderPair.Item2;
var result = cfb.Div(cfb.ConstantInt(8), cfb.ConstantInt(0));
CheckIsInt(result);
Assert.IsNull(ExprUtil.AsLiteral(result));
Assert.IsNotNull(ExprUtil.AsDiv(result));
Assert.AreEqual("8 div 0", result.ToString());
}
public void ZeroDivideByIntExpr()
{
var builderPair = GetSimpleAndConstantFoldingBuilder();
var x = GetVarAndIdExpr("x", BasicType.Int).Item2;
var cfb = builderPair.Item2;
var result = cfb.Div(cfb.ConstantInt(0), x);
CheckIsInt(result);
Assert.IsFalse(ExprUtil.IsZero(result));
Assert.IsNotNull(ExprUtil.AsDiv(result));
}
public void NestedDivInt()
{
var builderPair = GetSimpleAndConstantFoldingBuilder();
var x = GetVarAndIdExpr("x", BasicType.Int).Item2;
var y = GetVarAndIdExpr("y", BasicType.Int).Item2;
var z = GetVarAndIdExpr("z", BasicType.Int).Item2;
var cfb = builderPair.Item2;
var result = cfb.Div(cfb.Div(x, y), z);
var asDiv = ExprUtil.AsDiv(result);
Assert.IsNotNull(asDiv);
CheckIsInt(result);
Assert.AreSame(x, asDiv.Args[0]);
var rhsOfDiv = ExprUtil.AsMul(asDiv.Args[1]);
Assert.IsNotNull(rhsOfDiv);
Assert.AreSame(y, rhsOfDiv.Args[0]);
Assert.AreSame(z, rhsOfDiv.Args[1]);
}