On Tue, Nov 13, 2012 at 09:25:36AM -0800, Xinliang David Li wrote:
> > That is complete misunderstanding of what update_address_taken does.
> > It removes TREE_ADDRESSABLE from addressables that are no longer
> > addressable, rather than adding TREE_ADDRESSABLE bits.
>
> It will do the latter too. See iv-opts.
Where? I strongly doubt that.
> > For the latter
> > there is mark_addressable function.
>
> This is certainly cheaper to use.
Even cheaper is just do nothing, tree-ssa-operands.c during
update_stmt_operands (which will be called for all newly created stmts,
upon update_stmt etc.) will take care of calling mark_address_taken.
Jakub
