/// <summary>
/// Emits an add instruction.
/// </summary>
/// <param name="instruction">The instruction.</param>
/// <param name="context">The context.</param>
/// <param name="builder">The builder.</param>
public void Emit(Instruction instruction, MethodContext context, BuilderRef builder)
{
StackElement value2 = context.CurrentStack.Pop();
StackElement value1 = context.CurrentStack.Pop();
if (TypeHelper.IsFloatingPoint(value1) || TypeHelper.IsFloatingPoint(value2))
{
ValueRef result = LLVM.BuildFAdd(builder, value1.Value, value2.Value, "addfp");
context.CurrentStack.Push(new StackElement(result, value1.ILType, value1.Type));
}
else
{
bool isPtrVal1, isPtrVal2;
CastHelper.HelpPossiblePtrCast(builder, ref value1, ref value2, out isPtrVal1, out isPtrVal2, "addcast");
// If one of the two values is a pointer, then the result will be a pointer as well.
if (isPtrVal1 || isPtrVal2)
{
ValueRef result = LLVM.BuildAdd(builder, value1.Value, value2.Value, "addptr");
TypeRef resultingType = (isPtrVal1 ? value1.Type : value2.Type);
TypeReference resultingILType = (isPtrVal1 ? value1.ILType : value2.ILType);
ValueRef ptr = LLVM.BuildIntToPtr(builder, result, resultingType, "ptr");
context.CurrentStack.Push(new StackElement(ptr, resultingILType, resultingType));
}
// Cast to different int size.
else
{
CastHelper.HelpIntCast(builder, ref value1, ref value2);
ValueRef result = LLVM.BuildAdd(builder, value1.Value, value2.Value, "addi");
context.CurrentStack.Push(new StackElement(result, value1.ILType, value1.Type));
}
}
}