Creating a structure at compile time.

[Ian Lance Taylor]

Matt Davis <mattdavis9@gmail.com> writes:

> Well, I have successfully created and used an initialized structure.
> Note that I do not need to run the make_ssa_name.  I can declare the
> struct as TREE_STATIC and work from there.  Now, my problem with the
> expand_expr_real_1 check failing is because some of the values I
> initialize in my compile-time created struct can be different at
> runtime.  Is there a way I can take this constructor tree node, and
> have all of the values in it set in the middle of my function, where
> those values are defined?   I do not need the structure initialized
> upon function entry.  What I need is to have all of the values, which
> I already setup when I am in the middle of the function being
> processed.  I need these values actually filled-out in the middle of
> function instead at function entry.  I am unsure how to do this.  The
> constructor node exists, and I'm in the middle of an IPA pass.  I
> assume I can call gimplify_expr() but I am thinking I need to pass it
> something different than just a constructor tree node.

Once the struct exists, you can use MODIFY_EXPR to assign a value to a
COMPONENT_REF referring to the struct variable and the FIELD_DECL.

Or you can build your constructor out of expressions.

I'm not sure I really understand your question so I'm not sure if these
are the kinds of answers you are looking for.

Ian