From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 0E7F2384B0D2; Wed, 14 Sep 2022 04:48:45 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 0E7F2384B0D2 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1663130925; bh=WUSyj+HNxHtRnM786u60Mz3YAzSnwfdGGdhE/5WqFns=; h=From:To:Subject:Date:From; b=bccU7DP6beBoI1VM5VcO/n/xxQz8k1G8vhm+xkmQZTzKSKvd9OAymTm25TPiJmxR5 WntHlpZzXkals/uDNJLlT6r+3bPcTsxAllN09kpdCBsK0LwGNurcW6dAA3YcaY8CN8 Dnvibze19EeEplI08/r/M4rWgIS4Ibmhv78KdM6Y= From: "asolokha at gmx dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/106938] New: [13 Regression] ICE in predicate::init_from_control_deps Date: Wed, 14 Sep 2022 04:48:44 +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 cc 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=3D106938 Bug ID: 106938 Summary: [13 Regression] ICE in predicate::init_from_control_deps 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 CC: hubicka at gcc dot gnu.org, rguenth at gcc dot gnu.org Target Milestone: --- gcc 13.0.0 20220911 snapshot (g:0ea5e3f4542832b8da016b152695e64a2a386309) I= CEs when compiling the following testcase w/ -O1 -fno-ipa-pure-const -fno-tree-= ccp -Wuninitialized: int n; void undefined (void); __attribute__ ((returns_twice)) int zero (void) { return 0; } void bar (int) { int i; for (i =3D 0; i < -1; ++i) n =3D 0; } __attribute__ ((simd)) void foo (void) { int uninitialized; undefined (); while (uninitialized < 1) { bar (zero ()); ++uninitialized; } } % gcc-13.0.0 -O1 -fno-ipa-pure-const -fno-tree-ccp -Wuninitialized -w -c r1v5kswd.c during GIMPLE pass: uninit r1v5kswd.c: In function 'foo.simdclone.0': r1v5kswd.c:22:1: internal compiler error: Segmentation fault 22 | foo (void) | ^~~ 0xeebbdf crash_signal =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20220911/work/gcc-13-20220911/gcc/to= plev.cc:314 0x1d2a191 gimple_code =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20220911/work/gcc-13-20220911/gcc/gi= mple.h:1807 0x1d2a191 predicate::init_from_control_deps(vec const*, unsigned int, bool) =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20220911/work/gcc-13-20220911/gcc/gi= mple-predicate-analysis.cc:1776 0x1d2cc00 predicate::init_from_control_deps(vec const*, unsigned int, bool) =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20220911/work/gcc-13-20220911/gcc/gi= mple-predicate-analysis.cc:1722 0x1d2cc00 uninit_analysis::init_from_phi_def(gphi*) =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20220911/work/gcc-13-20220911/gcc/gi= mple-predicate-analysis.cc:2116 0x1d2e9ab uninit_analysis::is_use_guarded(gimple*, basic_block_def*, gphi*, unsigned int, hash_set >*) =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20220911/work/gcc-13-20220911/gcc/gi= mple-predicate-analysis.cc:2172 0x1d2ef59 uninit_analysis::is_use_guarded(gimple*, basic_block_def*, gphi*, unsigned int) =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20220911/work/gcc-13-20220911/gcc/gi= mple-predicate-analysis.cc:2195 0x1140e01 find_uninit_use =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20220911/work/gcc-13-20220911/gcc/tr= ee-ssa-uninit.cc:1238 0x1141756 warn_uninitialized_phi =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20220911/work/gcc-13-20220911/gcc/tr= ee-ssa-uninit.cc:1308 0x1141756 execute_late_warn_uninitialized =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20220911/work/gcc-13-20220911/gcc/tr= ee-ssa-uninit.cc:1429 0x1141756 execute =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-13.0.0_p20220911/work/gcc-13-20220911/gcc/tr= ee-ssa-uninit.cc:1446=