Debugging in Composer XE 2013

[Webster__William]

I have just downloaded this latest version of the Fortran compiler and tried to debug changes to an existing project that was created using Composer XE 2011.  When I tried to look at several variables using the watch list I get the error "Cannot view register variable".  I did not get this error using XE 2011 and it appears that I cannot return to use XE 2011 since XE 2013 converted the project information that makes it inaccessible to XE 2011.  I suspect that there are some project settings that need to be changed but I cannot figure out which should be changed.  I am running using the "Debug / WIn 32" option and the compiler directives are the following:

/nologo /debug:full /O2 /extend_source:132 /Qdiag-error-limit:500 /debug-parameters:all /warn:interfaces /real_size:64 /module:"Debug\\" /object:"Debug\\" /Fd"Debug\vc100.pdb" /traceback /check:bounds /libs:static /threads /dbglibs /c

What can I do to enable the watch list?

[Webster__William]

Whoops! On review I noticed that the optimization level was set to 02. When I changed this to 0d, the watch window worked normally. Problem resolved!

[Les_Neilson]

Note the original message is not an "error" it means that the compiler has optimised the code such that the value of the variable is being held in a register and not in memory. It is usual when debugging to turn optimisation off. However in debug mode you can view the registers (Debug -> Windows -> Registers) so if you know which one is being used for your data then you can view it. Les