Open Radar

 
Summary:
Trying to generate an image using -[CALayer renderInContext:] never returns _if_ the layer has zero width, zero height, a corner radius, a border width _and_ the app is running on a retina device.

Steps to Reproduce:
Run the attached Xcode project in a retina simulator.

Expected Results:
-[CALayer renderInContext:] returns and has the same behaviour as non-retina devices.

Actual Results:
-[CALayer renderInContext:] enters into an infinite loop inside CG::Cubic::is_near and never leaves the function. The app is eventually killed by the watchdog timer (0x8badf00d).


Version:
iOS 7.1

Notes:
Our app creates 3 of these empty layers in -loadView and skips them in -layoutSubviews because they have no content to display. If the user taps a bookmark, the app captures a snapshot of the current view hierarchy before navigating away.

Configuration:
Retina simulator (32-bit or 64-bit)

Attachments:
'CoreGraphicsFreeze.zip' was successfully uploaded.