From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 18460 invoked by alias); 6 Dec 2011 09:36:38 -0000 Received: (qmail 18447 invoked by uid 22791); 6 Dec 2011 09:36:37 -0000 X-SWARE-Spam-Status: No, hits=-2.8 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00,TW_TM 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, 06 Dec 2011 09:36:22 +0000 From: "burnus at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/51436] New: [4.7 Regression] ICE(segfault) in gimplify_and_update_call_from_tree gimple-fold.c:603 Date: Tue, 06 Dec 2011 09:36:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Keywords: ice-on-valid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: burnus at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: Message-ID: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable 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: 2011-12/txt/msg00534.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D51436 Bug #: 51436 Summary: [4.7 Regression] ICE(segfault) in gimplify_and_update_call_from_tree gimple-fold.c:603 Classification: Unclassified Product: gcc Version: 4.7.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: middle-end AssignedTo: unassigned@gcc.gnu.org ReportedBy: burnus@gcc.gnu.org Host: x86_64-unknown-linux-gnu Created attachment 26003 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=3D26003 Reduced test case (test.ii, 5 KiB) The attached test case compiles with g++ 4.6 but with the current 4.7.0 20111206 it fails with: $ g++ test52.ii test52.ii: In static member function =E2=80=98static Dest v8::internal::BitCastHelper::cast(Source*) [with Dest =3D v8::internal::String**; Source =3D v8::internal::String*]=E2=80=99: test52.ii:116:16: internal compiler error: Segmentation fault Program received signal SIGSEGV, Segmentation fault. gimplify_and_update_call_from_tree (si_p=3D0x7fffffffd8b0, expr=3D) at gcc/gimple-fold.c:603 603 if (TREE_CODE (vdef) =3D=3D SSA_NAME) (gdb) p vdef $1 =3D (tree_node *) 0x0 (gdb) bt #0 gimplify_and_update_call_from_tree (si_p=3D0x7fffffffd8b0, expr=3D) at gcc/gimple-fold.c:603 #1 0x00000000008e704d in gimple_fold_call (inplace=3D, gsi=3D) at gcc/gimple-fold.c:1123 #2 fold_stmt_1 (gsi=3D0x7fffffffd8b0, inplace=3Dfalse) at gcc/gimple-fold.= c:1187 #3 0x0000000000a96b41 in fold_marked_statements (first=3D5, statements=3D0x173bbc0) at gcc/tree-inline.c:4131 #4 0x0000000000a9f1f7 in optimize_inline_calls (fn=3D0x2aaaacf86b00) at gcc/tree-inline.c:4275 #5 0x0000000000f03223 in early_inliner () at gcc/ipa-inline.c:1968 #6 0x00000000009af115 in execute_one_pass (pass=3D0x15bf400) at gcc/passes.c:2074 #7 0x00000000009af4b5 in execute_pass_list (pass=3D0x15bf400) at gcc/passes.c:2129 #8 0x00000000009ae684 in do_per_function_toporder (callback=3D0x9af4a0 , data=3D0x15bbbc0) at gcc/passes.c:1616