Philip Herron <redbrain@xxxxxxxxxxx> writes:
> Been asking on irc tonight but i think many might be sensible and
> sleeping. Anyway's this has been bugging me for some time, if i create
> a VAR_DECL such as:
>
> tree test = build_decl( UNKNOWN_LOCATION, VAR_DECL,
> get_identifier("test"),
> integer_type_node);
>
> TREE_CONSTANT (test) = 1;
> DECL_ARTIFICIAL (test) = 1;
> TREE_STATIC (test) = 1;
> TREE_READONLY (test) = 1;
> TREE_USED (test) = 1;
> DECL_INITIAL (test) = build_int_cst(integer_type_node, 1234 );
By setting TREE_CONSTANT and TREE_STATIC, you are marking this decl as a
static const, more or less like a C++ const. It will only be written
out if something else refers to it. You probably don't want to set
TREE_CONSTANT.
Ian
