When using VS2013 Update 4, for Fortran source files compiled with -debug:minimal we lost the ability to set breakpoints or have the source file automatically opened in the IDE with Break All. The breakpoints appear as hollow circles with a warning sign, and the tooltip reads "The breakpoint will not currently be hit. Unexpected symbol reader error while processing hello.exe". The Modules window shows "Symbols loaded." in the Symbol Status column for hello.exe.
We're using Compiler 15 Update 1.
To reproduce, attach to the following .exe, built with ifort -debug:minimal hello.f90
program hello
print *, "Press Enter to continue..."
read (*, *)
print *, "Hello World!"
end
There are no issues when using -debug:full, but that generates different code when combined with optimizations (-Ox).
The -debug:minimal code can be debugged with VS2010 SP1, both for setting up breakpoints and associating the source with the current code location when breaking the execution.
