Main project window with gcc 2.7.2 source code currently loaded. Bottom half of window shows grep on ‘get_integer_term’ function in all files.

The global ID browser shows all of the global variables in the source code. There are 101 references to the ‘loop_dump_stream’ file pointer.

Clicking on entry reveals the references to ‘loop_dump_stream’ in a particular file (loop.c). We can create a star diagram on this variable by clicking on it (green highlighting) and pressing the ‘Add to Star’ button in the upper left corner.

Here is the star diagram for the ‘loop_dump_stream’ variable. Notice that it is used five times in the call to print_rtx.

Elision features and window sliders allow us to see more of the diagram on the screen at once.