I think more correctly i am looking to define a VAR_DECL at file scope
and not sure how.
--Phil
On 20 August 2013 16:04, Philip Herron <redbrain@xxxxxxxxxxx> wrote:
> Hey
>
> I am wondering how do i have a global variable in GENERIC currently i am doing:
>
> tree stack_offset = build_decl (BUILTINS_LOCATION, VAR_DECL,
> create_tmp_var_name ("__MODULE_STK_OFFS"),
> sizetype);
>
> TREE_STATIC (stack_offset) = 1;
> TREE_PUBLIC (stack_offset) = 1;
> TREE_USED (stack_offset) = 1;
> DECL_INITIAL (stack_offset) = build_int_cst (integer_type_node, 0);
> rest_of_decl_compilation (stack_offset, 1, 0);
>
> Then i add this to the array of stuff you pass to the middle-end but i
> am getting:
>
> <built-in>: In function ‘t.__main_start__’:
> <built-in>:0:0: internal compiler error: in expand_expr_real_1, at expr.c:9326
>
> Its this assert:
>
> /* Variables inherited from containing functions should have
> been lowered by this point. */
> context = decl_function_context (exp);
> gcc_assert (!context
> || context == current_function_decl
> || TREE_STATIC (exp)
> || DECL_EXTERNAL (exp)
> /* ??? C++ creates functions that are not TREE_STATIC. */
> || TREE_CODE (exp) == FUNCTION_DECL);
>
> So it must be because that has no context set but i the idea is that i
> want in generic to be able to use this global variable:
>
> sizetype myglobal
>
> void myfunction () {
> ...
> sizetype x = myglobal + ...
> }
>
> I hope this makes sense just not sure what the context needs to be set
> to i think.
>
> --Phil
