public void SubsequentOptimizations()
{
var TAC = GenerateTAC(
@"
{
y = 6 / 2 - 2 * 1;
x = y * 4;
}
");
var optimizer = new ConstantFoldingOptimizer(TAC);
optimizer.Run();
var expected = new List <string>()
{
"#t0 = 3",
"#t1 = 2",
"#t2 = #t0 - #t1",
"y = #t2",
"x = y * 4"
};
var actual = TAC.Instructions.Select(instruction => instruction.ToString().Trim());
CollectionAssert.AreEqual(expected, actual);
}
public void SimpleExample2()
{
var TAC = GenerateTAC(
@"
{
x = 7 - 8 * 0 + 3;
}
");
var optimizer = new ConstantFoldingOptimizer(TAC);
optimizer.Run();
var expected = new List <string>()
{
"#t0 = 0",
"#t1 = 7 - #t0",
"#t2 = #t1 + 3",
"x = #t2"
};
var actual = TAC.Instructions.Select(instruction => instruction.ToString().Trim());
CollectionAssert.AreEqual(expected, actual);
}
public void SimpleExample()
{
var TAC = GenerateTAC(
@"
{
x = 7 + 8;
y = 3 * 6;
z = 5 / 5;
}
");
var optimizer = new ConstantFoldingOptimizer(TAC);
optimizer.Run();
var expected = new List <string>()
{
"x = 15",
"y = 18",
"z = 1"
};
var actual = TAC.Instructions.Select(instruction => instruction.ToString().Trim());
CollectionAssert.AreEqual(expected, actual);
}