From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id AA0C13858D28; Tue, 8 Nov 2022 13:52:05 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org AA0C13858D28 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1667915534; bh=eEXNtgA4QE2sNPvuA9b126Abowj+3jJZ/M9rWpSoT3o=; h=From:To:Subject:Date:From; b=rtqILtjU9+KTuKGpSPl6enBDKj5gHng91q7Eo3Fm0zYSDLzzD8aW3HqOuhvyrPJYk QtbdWmszm5xejW4KpgHbtAolzebj90eUdit6YC715h4a/Ol44MwHNTiCf5FAN7ED4D /MrDl/EqnPQmXjJzdeRDlvi1IeNfFMjl7ZQzSN4s= From: "asolokha at gmx dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/107570] New: [13 Regression] ICE: Segmentation fault (in instantiate_scev_name/gimple_bb) Date: Tue, 08 Nov 2022 13:52:05 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Version: 13.0 X-Bugzilla-Keywords: ice-on-valid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: asolokha at gmx dot com X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_status keywords bug_severity priority component assigned_to reporter target_milestone Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107570 Bug ID: 107570 Summary: [13 Regression] ICE: Segmentation fault (in instantiate_scev_name/gimple_bb) Product: gcc Version: 13.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: asolokha at gmx dot com Target Milestone: --- gcc 13.0.0 20221106 snapshot (g:c56826d0f3b143a9cb64ee263707046f8073c1b6) I= CEs when compiling the following testcase w/ -Os: long int n; void foo (int *p, int x) { for (;;) { for (*p =3D 0; *p < 1; ++*p) { n +=3D *p < 0; if (n < x) { while (x < 1) ++x; __builtin_unreachable (); } } p =3D &x; } } % gcc-13 -Os -c dpim0i6y.c during GIMPLE pass: vrp dpim0i6y.c: In function 'foo': dpim0i6y.c:4:1: internal compiler error: Segmentation fault 4 | foo (int *p, int x) | ^~~ 0xf0e7af crash_signal =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20221106/work/gcc-13-20221106/gcc/to= plev.cc:314 0xff9e27 gimple_bb =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20221106/work/gcc-13-20221106/gcc/gi= mple.h:1904 0xff9e27 instantiate_scev_name =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20221106/work/gcc-13-20221106/gcc/tr= ee-scalar-evolution.cc:2270 0xff9e27 instantiate_scev_r =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20221106/work/gcc-13-20221106/gcc/tr= ee-scalar-evolution.cc:2644 0xff9cec instantiate_scev_poly =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20221106/work/gcc-13-20221106/gcc/tr= ee-scalar-evolution.cc:2424 0xff9cec instantiate_scev_r =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20221106/work/gcc-13-20221106/gcc/tr= ee-scalar-evolution.cc:2649 0xffa8c2 instantiate_scev(edge_def*, loop*, tree_node*) =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20221106/work/gcc-13-20221106/gcc/tr= ee-scalar-evolution.cc:2726 0x129350a instantiate_parameters =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20221106/work/gcc-13-20221106/gcc/tr= ee-scalar-evolution.h:63 0x129350a bounds_of_var_in_loop(tree_node**, tree_node**, range_query*, loo= p*, gimple*, tree_node*) =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20221106/work/gcc-13-20221106/gcc/vr= -values.cc:1672 0x1d78ff3 fold_using_range::range_of_ssa_name_with_loop_info(vrange&, tree_node*, loop*, gphi*, fur_source&) =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20221106/work/gcc-13-20221106/gcc/gi= mple-range-fold.cc:957 0x1d79bab fold_using_range::range_of_phi(vrange&, gphi*, fur_source&) =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20221106/work/gcc-13-20221106/gcc/gi= mple-range-fold.cc:820 0x1d7c4d8 fold_using_range::fold_stmt(vrange&, gimple*, fur_source&, tree_node*) =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20221106/work/gcc-13-20221106/gcc/gi= mple-range-fold.cc:491 0x1d6e183 gimple_ranger::fold_range_internal(vrange&, gimple*, tree_node*) =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20221106/work/gcc-13-20221106/gcc/gi= mple-range.cc:257 0x1d6e183 gimple_ranger::range_of_stmt(vrange&, gimple*, tree_node*) =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20221106/work/gcc-13-20221106/gcc/gi= mple-range.cc:318 0x1d6cab7 gimple_ranger::range_on_entry(vrange&, basic_block_def*, tree_nod= e*) =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20221106/work/gcc-13-20221106/gcc/gi= mple-range.cc:153 0x11f2436 remove_unreachable::remove_and_update_globals(bool) =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20221106/work/gcc-13-20221106/gcc/tr= ee-vrp.cc:151 0x11f66ba remove_unreachable::remove_and_update_globals(bool) =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20221106/work/gcc-13-20221106/gcc/tr= ee-vrp.cc:4536 0x11f66ba execute_ranger_vrp(function*, bool, bool) =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20221106/work/gcc-13-20221106/gcc/tr= ee-vrp.cc:4536=