From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 6E2383858292; Mon, 18 Dec 2023 11:24:50 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 6E2383858292 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1702898690; bh=NPZ71+aUtXZj5zC/9otsapj6AYOf1wkr6KGEx25iL7Y=; h=From:To:Subject:Date:From; b=StDqLAPiU4SHZT/Ny8lEcQzTV7xelbwkvhY6jDm90xI04wWehviyIJnQMJw54+VJW hw7jYIgPtEqHBAkRRzOkpZtAQjZbwM9gp5OmQQx+PY8T7UbR0YSv03ui83kmp5r2AA FUxAJ9fwyMtpFyZv3qxT/YV6s1DSIZaHgaJPv908= From: "mjires at suse dot cz" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/113062] New: [14 Regression][aarch64] ICE in fuse_pair, at config/aarch64/aarch64-ldp-fusion.cc:1456 since r14-6605-gc0911c6b357ba9 Date: Mon, 18 Dec 2023 11:24:49 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: target X-Bugzilla-Version: 14.0 X-Bugzilla-Keywords: ice-on-valid-code 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 keywords bug_severity priority component assigned_to reporter cc target_milestone cf_gcctarget 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=3D113062 Bug ID: 113062 Summary: [14 Regression][aarch64] ICE in fuse_pair, at config/aarch64/aarch64-ldp-fusion.cc:1456 since r14-6605-gc0911c6b357ba9 Product: gcc Version: 14.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: mjires at suse dot cz CC: acoplan at gcc dot gnu.org Target Milestone: --- Target: aarch64 Compiling reduced testcase gcc.dg/compat/struct-return-10_x.c results in ICE since r14-6605-gc0911c6b357ba9. $ cat struct-return-10_x.c long double foo; double bar; void abort(); void check() { if (foo =3D=3D bar) abort(); } $ aarch64-linux-gnu-gcc struct-return-10_x.c -Oz -fharden-conditional-branc= hes during RTL pass: ldp_fusion struct-return-10_x.c: In function =E2=80=98check=E2=80=99: struct-return-10_x.c:7:1: internal compiler error: in fuse_pair, at config/aarch64/aarch64-ldp-fusion.cc:1456 7 | } | ^ 0x1e2c0c8 ldp_bb_info::fuse_pair(bool, unsigned int, int, rtl_ssa::insn_inf= o*, rtl_ssa::insn_info*, base_cand&, rtl_ssa::insn_range_info const&) =20=20=20=20=20=20=20 /home/mjires/git/GCC/master/gcc/config/aarch64/aarch64-ldp-fusion.cc:1456 0x1e2da97 ldp_bb_info::try_fuse_pair(bool, unsigned int, rtl_ssa::insn_info= *, rtl_ssa::insn_info*) =20=20=20=20=20=20=20 /home/mjires/git/GCC/master/gcc/config/aarch64/aarch64-ldp-fusion.cc:2217 0x1e2de0f ldp_bb_info::merge_pairs(std::__cxx11::list >&, std::__cxx11::list >&, bool, unsigned int) =20=20=20=20=20=20=20 /home/mjires/git/GCC/master/gcc/config/aarch64/aarch64-ldp-fusion.cc:2306 0x1e2e034 ldp_bb_info::transform_for_base(int, access_group&) =20=20=20=20=20=20=20 /home/mjires/git/GCC/master/gcc/config/aarch64/aarch64-ldp-fusion.cc:2339 0x1e306c8 void ldp_bb_info::traverse_base_map >, access_group, simple_hashmap_traits > >, access_group> > >(ordered_hash_map >, access_group, simple_hashmap_traits > >, access_group> >&) =20=20=20=20=20=20=20 /home/mjires/git/GCC/master/gcc/config/aarch64/aarch64-ldp-fusion.cc:2398 0x1e2e27c ldp_bb_info::transform() =20=20=20=20=20=20=20 /home/mjires/git/GCC/master/gcc/config/aarch64/aarch64-ldp-fusion.cc:2405 0x1e2968c ldp_fusion_bb(rtl_ssa::bb_info*) =20=20=20=20=20=20=20 /home/mjires/git/GCC/master/gcc/config/aarch64/aarch64-ldp-fusion.cc:2634 0x1e29716 ldp_fusion() =20=20=20=20=20=20=20 /home/mjires/git/GCC/master/gcc/config/aarch64/aarch64-ldp-fusion.cc:2643 0x1e29828 execute =20=20=20=20=20=20=20 /home/mjires/git/GCC/master/gcc/config/aarch64/aarch64-ldp-fusion.cc:2693 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. $ aarch64-linux-gnu-gcc -v Using built-in specs. COLLECT_GCC=3Daarch64-linux-gnu-gcc COLLECT_LTO_WRAPPER=3D/home/mjires/built/master/libexec/gcc/aarch64-linux-g= nu/14.0.0/lto-wrapper Target: aarch64-linux-gnu Configured with: /home/mjires/git/GCC/master/configure --prefix=3D/home/mjires/built/master --target=3Daarch64-linux-gnu --disable-bootstrap --enable-languages=3Dc,c++,fortran --disable-multilib --disable-libsanitizer --enable-checking Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 14.0.0 20231218 (experimental) (GCC)=