Re: Local variables

[Ian Lance Taylor <iant at google dot com>]

Abdul Wahid Memon <engrwahidmemon@gmail.com> writes:

> I am trying to create a simple integer type variable at GIMPLE level
> using the following code.
>
> tree var_decl = build_decl(UNKNOWN_LOCATION, VAR_DECL,
> get_identifier("aflatoon"), integer_type_node);
>   DECL_ARTIFICIAL (var_decl) = 1;
>   TREE_PUBLIC (var_decl) = 1;
>   TREE_USED (var_decl) = 1;
>   TREE_STATIC (var_decl) = 1;
>   DECL_INITIAL (var_decl) = build_int_cst(integer_type_node, 12345);
>
> stmt = gimple_build_bind(var_decl, cfun->gimple_body, NULL );
> gsi_insert_before(&gsi, stmt, GSI_SAME_STMT);
>
> But I am always getting the following error.
>
> hello.c:3:5: error: invalid GIMPLE statement
> {
>   static int aflatoon = 12345;
>
>
> }
>
> hello.c:3:5: internal compiler error: in verify_types_in_gimple_stmt,
> at tree-cfg.c:4047
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <http://gcc.gnu.org/bugs.html> for instructions.
>
> I have checked verify_type_in_gimple_stmt and it is returning true as
> the stmt that is being given is of type GIMPLE_BIND
> which is not there.
>
> One more thing, I want to declare this local variable right at the
> starting of main function definition but I am unable to do it. Any
> help will be useful.

Setting TREE_STATIC to 1 means that this is a file static variable, not
a function local variable.  Which one do you want?

If you want the file static variable, then you should not be calling
gimple_build_bind.  If you want a function local variable, then you
should not be setting TREE_STATIC.

Ian