From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id B28453858291; Wed, 17 Jan 2024 13:37:09 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org B28453858291 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1705498629; bh=9ys8IRkddfAY/vRBI35cqVXQ81+8KmNU+S1LNFMYhbc=; h=From:To:Subject:Date:From; b=aRGeigx+mwZqTSTpgEXxr/J9zyT2ZqsBCtO6oIOAI2LGCxrINNqkWkR75P5m7+yJQ M7ASjhVuMBcPtC37BMh09eGiRBOyW4+B42dQ+udBfgt7/312b6QWQ6gghrbnh2xqvJ gKpWtriIHwBn0nHW+odLAWpG5uKCJm3bA/Kmp3/A= From: "mjires at suse dot cz" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/113442] New: [14 Regression] ICE in compute_live_loop_exits, at tree-ssa-loop-manip.cc:250 since r14-7195-g411de96dbf2bda Date: Wed, 17 Jan 2024 13:37:09 +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: 14.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: mjires at suse dot cz 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 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=3D113442 Bug ID: 113442 Summary: [14 Regression] ICE in compute_live_loop_exits, at tree-ssa-loop-manip.cc:250 since r14-7195-g411de96dbf2bda Product: gcc Version: 14.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: mjires at suse dot cz CC: tamar.christina at arm dot com Target Milestone: --- Compiling reduced testcase g++.dg/torture/predcom-1.C results in ICE since r14-7195-g411de96dbf2bda. $ cat predcom-1.C struct Foo { int *ptr; }; bool Baz(Foo first) { while (first.ptr) if (*first.ptr++) return false; } $ g++ predcom-1.C -fno-tree-sra -O3 -mavx512bf16 predcom-1.C: In function =E2=80=98bool Baz(Foo)=E2=80=99: predcom-1.C:8:1: warning: control reaches end of non-void function [-Wreturn-type] 8 | } | ^ during GIMPLE pass: vect predcom-1.C:4:6: internal compiler error: in compute_live_loop_exits, at tree-ssa-loop-manip.cc:250 4 | bool Baz(Foo first) { | ^~~ 0x1cf88f5 compute_live_loop_exits /home/mjires/git/GCC/master/gcc/tree-ssa-loop-manip.cc:250 0x1cf8cf1 add_exit_phis_var /home/mjires/git/GCC/master/gcc/tree-ssa-loop-manip.cc:332 0x1cf90b4 add_exit_phis /home/mjires/git/GCC/master/gcc/tree-ssa-loop-manip.cc:392 0x1cf970a rewrite_into_loop_closed_ssa_1 /home/mjires/git/GCC/master/gcc/tree-ssa-loop-manip.cc:606 0x1cf977b rewrite_into_loop_closed_ssa(bitmap_head*, unsigned int) /home/mjires/git/GCC/master/gcc/tree-ssa-loop-manip.cc:628 0x1eaec75 execute /home/mjires/git/GCC/master/gcc/tree-vectorizer.cc:1360 Please submit a full bug report, with preprocessed source (by using -freport-bug). Please include the complete backtrace with any bug report. See for instructions. $ g++ -v Using built-in specs. COLLECT_GCC=3Dg++ COLLECT_LTO_WRAPPER=3D/home/mjires/built/master/libexec/gcc/x86_64-pc-linux= -gnu/14.0.1/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: /home/mjires/git/GCC/master/configure --prefix=3D/home/mjires/built/master --disable-bootstrap --enable-languages=3Dc,c++,fortran,lto --disable-multilib --disable-libsani= tizer --enable-checking : (reconfigured) /home/mjires/git/GCC/master/configure --prefix=3D/home/mjires/built/master --disable-bootstrap --enable-languages=3Dc,c++,fortran,lto --disable-multilib --disable-libsani= tizer --enable-checking Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 14.0.1 20240117 (experimental) (GCC)=