gcc code debug

[anandulle]

hello 

                  I was traversing through the source code of GCC using GDB
and I understood some of the function the GCC toplev_main() calls but when i
came to one particular initialization  init_optimization_passes()  i was not
able to understand the statements

 if (pass->static_pass_number)
     pass->todo_flags_start |= TODO_mark_first_instance;
     *list = pass;
     pass->static_pass_number = -1;

I want to know what is the static_pass_number, what is the value inside it

thanking you


yours sincerely

Anand Raj S Ulle
Shivmurthy
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