Autogenerated ivars not retained by ARC

OLVIconViewCell.h

@interface OLVIconViewCell : UIView

@property(nonatomic, readonly) NSString *reuseIdentifier;

@property(nonatomic, readonly) UILabel *textLabel;
@property(nonatomic, readonly) UILabel *detailTextLabel;
@property(nonatomic, readonly) UIImageView *imageView;

- (id)initWithReuseIdentifier:(NSString *)identifier;
- (void)prepareForReuse;

@end

OLVIconViewCell.m

#import "OLVIconViewCell.h"

@interface OLVIconViewCell ()
{
    // UILabel *myTextLabel;
    // UILabel *myDetailTextLabel;
    // UIImageView *myImageView;
    // NSString *myReuseIdentifier;

    CGSize mySize;
}

@end

@implementation OLVIconViewCell

@synthesize reuseIdentifier = myReuseIdentifier;
@synthesize textLabel = myTextLabel, detailTextLabel = myDetailTextLabel, imageView = myImageView;

- (UILabel *)cellLabel
{
    UILabel *label = [[UILabel alloc] init];

    label.shadowOffset = CGSizeMake(0.0, 1.0);
    label.textAlignment = UITextAlignmentCenter;
    
    return label;
}

- (id)initWithReuseIdentifier:(NSString *)identifier
{
    self = [super initWithFrame:CGRectZero];

    if (self)
    {
        myReuseIdentifier = identifier;

        myTextLabel = [self cellLabel];
        myTextLabel.textColor = [UIColor whiteColor];

        myDetailTextLabel = [self cellLabel];
        myDetailTextLabel.textColor = [UIColor lightGrayColor];

        myImageView = [[UIImageView alloc] init];
    }
    
    return self;
}

- (void)prepareForReuse
{
    
}

- (void)performLayout
{
    CGSize size = self.bounds.size;
    
    CGSize textSize = [myTextLabel sizeThatFits:size];
    CGSize detailTextSize = [myDetailTextLabel sizeThatFits:size];
    
    myDetailTextLabel.Frame = CGRectMake(0.0, size.height - detailTextSize.height, size.width, detailTextSize.height);
    myTextLabel.frame = CGRectMake(0.0, size.height - detailTextSize.height - textSize.height, size.width, textSize.height);
    myImageView.frame = CGRectMake(0.0, 0.0, size.width, size.height - textSize.height - detailTextSize.height);
}

- (void)setFrame:(CGRect)frame
{
    [super setFrame:frame];

    if (!CGSizeEqualToSize(frame.size, mySize))
    {
        mySize = frame.size;
        [self performLayout];
    }
}

@end