On Thu, Apr 29, 2010 at 7:28 PM, Massimo Nazaria <ma...@rocketmail.com> wrote:
> Hi everybody!
> I am working on a gcc-pass which processes every statement using this code:
>
> for (node = cgraph_nodes; node; node = node->next)
> {
> if (node->analyzed && cgraph_is_master_clone (node))
> {
> push_cfun (DECL_STRUCT_FUNCTION (node->decl));
>
> FOR_EACH_BB (bb)
> {
> // Here I would like to use SSA_NAME_DEF_STMT (gimple_assign_rhs1
> (stmt));
>
>
> With the code above I can't use SSA_NAME_DEF_STMT (gimple_assign_rhs1 (stmt))
> (I get 'segmentation fault'). I think the reason is that the statements are
> not in SSA-form.
>
> Insead, if I use
>
> FOR_EACH_BB (bb) { ... }
>
> without using "for (node = graph_nodes; ...", I have the statements in
> SSA-form and SSA_NAME_DEF_STMT is OK.
>
> Unfortunately, with this solution, I can not process every function at once...
>
> How can I do to use SSA_NAME_DEF_STMT while processing every function?
You have to schedule your IPA pass at a point where the whole
program is in SSA form, which is during the regular IPA passes
at earlierst.
Richard.
> Thank you!
>
> Max
>
>
>
>
>
