From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 26527 invoked by alias); 22 May 2012 13:41:07 -0000 Received: (qmail 26351 invoked by uid 22791); 22 May 2012 13:41:05 -0000 X-SWARE-Spam-Status: No, hits=-4.3 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00,KHOP_THREADED X-Spam-Check-By: sourceware.org Received: from localhost (HELO gcc.gnu.org) (127.0.0.1) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Tue, 22 May 2012 13:40:50 +0000 From: "hubicka at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/53426] [4.8 Regression] ICE:create_variable_info_for at ../../gcc-trunk/gcc/tree-ssa-structalias.c:5581 Date: Tue, 22 May 2012 13:42:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Keywords: lto X-Bugzilla-Severity: normal X-Bugzilla-Who: hubicka at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: rguenth at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.8.0 X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2012-05/txt/msg02200.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53426 --- Comment #9 from Jan Hubicka 2012-05-22 13:31:28 UTC --- OK, I see the following: 6882 FOR_EACH_VARIABLE (var) 6883 { 6884 if (var->alias) 6885 continue; 6886 6887 get_vi_for_tree (var->symbol.decl); 6888 } (gdb) p dump_varpool_node (stderr, var) _ZTVN5boost16exception_detail19error_info_injectorISt13runtime_errorEE.local.230/1658 (_ZTVN5boost16exception_detail19error_info_injectorISt13runtime_errorEE) @0x7ffff75f1e88 Type: variable Visibility: in_other_partition used_from_other_partition prevailing_def_ironly external public visibility_specified visibility:hidden virtual artificial References: Referring: _ZNK5boost16exception_detail10clone_implINS0_19error_info_injectorISt13runtime_errorEEE5cloneEv.local.151/2414 (addr)_ZNK5boost16exception_detail10clone_implINS0_19error_info_injectorISt13runtime_errorEEE5cloneEv.local.151/2414 (addr) Availability: overwritable Varpool flags: initialized finalized this var won't pass varpool_all_refs_explicit: it is from other partition and used from elsewhere. Partitioning should have put the variables referred by this constructor into a boundary and it is not doing it - I will fix that. (it gets that right at my internal symbol table tree) On the other hand, is ipa-pta able to take advantage of fact that the variable is readonly? I would propose: Index: tree-ssa-structalias.c =================================================================== --- tree-ssa-structalias.c (revision 187695) +++ tree-ssa-structalias.c (working copy) @@ -5583,7 +5583,8 @@ create_variable_info_for (tree decl, con /* If this is a global variable with an initializer and we are in IPA mode generate constraints for it. */ - if (DECL_INITIAL (decl)) + if (DECL_INITIAL (decl) + && vnode->analyzed) { VEC (ce_s, heap) *rhsc = NULL; struct constraint_expr lhs, *rhsp; I.e. to care only about constructors of vars from current partition. This function does not check varpool_all_refs_explicit as you suggested in previous comment.