Losing all autos and local symbols when single-stepping in CPU debugger

[allanmac1]

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?

[Jeffrey_M_Intel1]

So far I have not been able to reproduce.  

Could you send more info about your system:

• processor model?  
• Not sure if I understand the version.  Do you have the latest Intel(R) SDK for OpenCL applications installed?  (Version reported by integrated CodeBuilder should be 6.3.0.1904).

 An example kernel could also help us investigate.   

[allanmac1]

The processor is a dual Xeon E5-2690 v3 and the latest Code Builder 6.3 is installed. 

The "CodeBuilder API Debugger 4.0.0.1" number comes from the "About Visual Studio" window and is probably unimportant.

I narrowed it down to the debugger losing symbols as soon as it initializes a union type.  The size of the union is equal to a cl_ulong.

[Jeffrey_M_Intel1]

I've replicated and filed as a bug.  Thanks for this report.

[allanmac1]

Argh, I guess I have to wait for a new release of Code Builder?

( Changing the codebase to just use native types and structs isn't feasible )