From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 20930 invoked by alias); 11 May 2011 08:55:41 -0000 Received: (qmail 20921 invoked by uid 22791); 11 May 2011 08:55:40 -0000 X-SWARE-Spam-Status: No, hits=-2.7 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 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; Wed, 11 May 2011 08:55:23 +0000 From: "burnus at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug fortran/48889] [4.6/4.7 Regression] f951: internal compiler error: in gfc_is_constant_expr, at fortran/expr.c:906 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: fortran X-Bugzilla-Keywords: ice-on-valid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: burnus at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.6.1 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 Date: Wed, 11 May 2011 09:23:00 -0000 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: 2011-05/txt/msg00899.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48889 --- Comment #6 from Tobias Burnus 2011-05-11 08:49:38 UTC --- Some more debugging: While e->symtree == NULL, the symbols seems to be properly resolved as e->value.function contains: (gdb) p e->value.function->name $11 = 0x2aaaaac273f0 "sparsity_size" (gdb) p e->value.function->esym->name $13 = 0x2aaaaac273f0 "sparsity_size" And that's the proper specific function. I was actually wondering whether always either isym or esym exists; however, as gfortran.dg/graphite/id-2.f90 shows, the case that only e->symtree->n.sym is set also occurs. Draft patch: --- a/gcc/fortran/expr.c +++ b/gcc/fortran/expr.c @@ -893,6 +893,9 @@ gfc_is_constant_expr (gfc_expr *e) case EXPR_FUNCTION: case EXPR_PPC: case EXPR_COMPCALL: + gcc_assert (e->symtree || e->value.function.esym + || e->value.function.isym); + /* Call to intrinsic with at least one argument. */ if (e->value.function.isym && e->value.function.actual) { @@ -901,13 +904,14 @@ gfc_is_constant_expr (gfc_expr *e) return 0; } - /* Make sure we have a symbol. */ - gcc_assert (e->symtree); - - sym = e->symtree->n.sym; - /* Specification functions are constant. */ /* F95, 7.1.6.2; F2003, 7.1.7 */ + sym = NULL; + if (e->symtree) + sym = e->symtree->n.sym; + if (e->value.function.esym) + sym = e->value.function.esym; + if (sym && sym->attr.function && sym->attr.pure