I'm using a VS2015 / Win10 workstation with the latest CPU driver and Code Builder installed (4.0.0.1).
I'm single-stepping through an OpenCL 2.1 + AVX2 CPU kernel and after a few lines all symbols in the Autos and Local windows disappear.
Single-stepping appears to continue to work because the line arrow is properly moving.
I've tried targeting both x86 and x64 and see no difference.
The build options for clBuildProgram(..) are "-g -s <kernel absolute path>".
Any ideas?