Hi, I would like to use ipa_ref in the PASS_LIST all_late_ipa_passes to query the statement (ref->stmt) of where a global variable is used. However, I am having some problems achieving this.
What I do is: 1. Check that ipa_ref->referring has a body and is not inlined. 2. get_body 3. try to print out the gimple statement using print_gimple_stmt (dump_file, ref->stmt, 0, TDF_NONE). This all seems correct to me, but I have been receiving errors that print is trying to print a tree with an incorrect TREE_CODE. I am assuming here that ref->stmt is not updated after all_regular_ipa_passes, much like how when looking at cgraph_edge the call statement is also not updated. Can someone please tell me if this is indeed the case or what is happening here? Also, while I think that the gimple statements might not be maintained, I see that ipa_ref is still used in the ipa_pta pass during all_late_ipa_passes. I see that ipa_ref->referring and ipa_ref->stmt are not used. Instead the tree of the referred is obtained in the following way: ref->referred->decl. I am assuming that it would be possible to use ref->referred->decl and search for this tree everywhere in referring to find the uses. Can someone confirm this? Thanks! -Erick
