build_function_call and TREE_ADDRESSABLE
Richard Guenther
richard.guenther@gmail.com
Fri Mar 4 10:16:00 GMT 2011
On Fri, Mar 4, 2011 at 5:58 AM, Alan Modra <amodra@gmail.com> wrote:
> Warn off anyone trying to do as I did, and the bit about inlines is
> no longer relevant. OK to apply?
>
> * tree.h (TREE_ADDRESSABLE): Note that direct calls set the
> flag on FUNCTION_DECLs.
>
> Index: gcc/tree.h
> ===================================================================
> --- gcc/tree.h (revision 170665)
> +++ gcc/tree.h (working copy)
> @@ -1106,8 +1106,8 @@ extern void omp_clause_range_check_faile
>
> /* In VAR_DECL, PARM_DECL and RESULT_DECL nodes, nonzero means address
> of this is needed. So it cannot be in a register.
> - In a FUNCTION_DECL, nonzero means its address is needed.
> - So it must be compiled even if it is an inline function.
> + In a FUNCTION_DECL, nonzero means its address is needed. This even
> + happens on a direct call, making the flag fairly useless.
> In CONSTRUCTOR nodes, it means object constructed must be in memory.
> In LABEL_DECL nodes, it means a goto for this label has been seen
> from a place outside all binding contours that restore stack levels.
Rather 'In a FUNCTION_DECL, it has no meaning.'
Ok with that change.
Richard.
> --
> Alan Modra
> Australia Development Lab, IBM
>
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