public inbox for gcc-bugs@sourceware.org help / color / mirror / Atom feed
From: "sjames at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/109676] New: [13/14 regression] ICE in simplify_subreg, at simplify-rtx.cc:7426 when building firefox with -O2 -march=alderlake -g Date: Sat, 29 Apr 2023 01:29:22 +0000 [thread overview] Message-ID: <bug-109676-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109676 Bug ID: 109676 Summary: [13/14 regression] ICE in simplify_subreg, at simplify-rtx.cc:7426 when building firefox with -O2 -march=alderlake -g Product: gcc Version: 14.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: rtl-optimization Assignee: unassigned at gcc dot gnu.org Reporter: sjames at gcc dot gnu.org Target Milestone: --- Originally reported downstream in Gentoo at https://bugs.gentoo.org/905262. Unfortunately, the original reproducer is too big even compressed, so it's at http://dev.gentoo.org/~sam/bugs/gcc/gcc-firefox-alderlake-x86/Unified_cpp_dom_fetch1.ii.xz. I'm working on a reduction now. ``` $ g++-13 -march=alderlake -O2 -g -c Unified_cpp_dom_fetch1.ii [...] during RTL pass: vartrack Unified_cpp_dom_fetch1.ii: In static member function ‘static mozilla::Maybe<mozilla::dom::ParentToParentStream> IPC::ParamTraits<mozilla::dom::ParentToParentStream>::Read(IPC::MessageReader*)’: Unified_cpp_dom_fetch1.ii:183311:1: internal compiler error: in simplify_subreg, at simplify-rtx.cc:7426 183311 | } | ^ 0xb99b70 simplify_context::simplify_subreg(machine_mode, rtx_def*, machine_mode, poly_int<1u, unsigned long>) /usr/src/debug/sys-devel/gcc-13.1.0-r1/gcc-13.1.0/gcc/simplify-rtx.cc:7426 0x1f4e111 simplify_context::simplify_gen_subreg(machine_mode, rtx_def*, machine_mode, poly_int<1u, unsigned long>) /usr/src/debug/sys-devel/gcc-13.1.0-r1/gcc-13.1.0/gcc/simplify-rtx.cc:7715 0x20c4a01 simplify_gen_subreg(machine_mode, rtx_def*, machine_mode, poly_int<1u, unsigned long>) /usr/src/debug/sys-devel/gcc-13.1.0-r1/gcc-13.1.0/gcc/rtl.h:3535 0x20c4a01 vt_expand_loc_callback /usr/src/debug/sys-devel/gcc-13.1.0-r1/gcc-13.1.0/gcc/var-tracking.cc:8524 0x208b8b1 cselib_expand_value_rtx_1 /usr/src/debug/sys-devel/gcc-13.1.0-r1/gcc-13.1.0/gcc/cselib.cc:1953 0x20c3b4b vt_expand_var_loc_chain /usr/src/debug/sys-devel/gcc-13.1.0-r1/gcc-13.1.0/gcc/cselib.cc:1836 0x20c459b vt_expand_loc_callback /usr/src/debug/sys-devel/gcc-13.1.0-r1/gcc-13.1.0/gcc/var-tracking.cc:8583 0x208b4ec cselib_expand_value_rtx_1 /usr/src/debug/sys-devel/gcc-13.1.0-r1/gcc-13.1.0/gcc/cselib.cc:1988 0x20c3b4b vt_expand_var_loc_chain /usr/src/debug/sys-devel/gcc-13.1.0-r1/gcc-13.1.0/gcc/cselib.cc:1836 0x20c459b vt_expand_loc_callback /usr/src/debug/sys-devel/gcc-13.1.0-r1/gcc-13.1.0/gcc/var-tracking.cc:8583 0x20c3b4b vt_expand_var_loc_chain /usr/src/debug/sys-devel/gcc-13.1.0-r1/gcc-13.1.0/gcc/cselib.cc:1836 0x20c459b vt_expand_loc_callback /usr/src/debug/sys-devel/gcc-13.1.0-r1/gcc-13.1.0/gcc/var-tracking.cc:8583 0x208b4ec cselib_expand_value_rtx_1 /usr/src/debug/sys-devel/gcc-13.1.0-r1/gcc-13.1.0/gcc/cselib.cc:1988 0x20c3b4b vt_expand_var_loc_chain /usr/src/debug/sys-devel/gcc-13.1.0-r1/gcc-13.1.0/gcc/cselib.cc:1836 0x20c2f94 vt_expand_1pvar /usr/src/debug/sys-devel/gcc-13.1.0-r1/gcc-13.1.0/gcc/var-tracking.cc:8696 0x20c2f94 emit_note_insn_var_location(variable**, emit_note_data*) /usr/src/debug/sys-devel/gcc-13.1.0-r1/gcc-13.1.0/gcc/var-tracking.cc:8750 0x20804fc void hash_table<variable_hasher, false, xcallocator>::traverse_noresize<emit_note_data*, &(emit_note_insn_var_location(variable**, emit_note_data*))>(emit_note_data*) /usr/src/debug/sys-devel/gcc-13.1.0-r1/gcc-13.1.0/gcc/hash-table.h:1173 0x20804fc void hash_table<variable_hasher, false, xcallocator>::traverse<emit_note_data*, &(emit_note_insn_var_location(variable**, emit_note_data*))>(emit_note_data*) /usr/src/debug/sys-devel/gcc-13.1.0-r1/gcc-13.1.0/gcc/hash-table.h:1194 0x20804fc emit_notes_for_changes /usr/src/debug/sys-devel/gcc-13.1.0-r1/gcc-13.1.0/gcc/var-tracking.cc:9110 0x207e49d emit_notes_in_bb /usr/src/debug/sys-devel/gcc-13.1.0-r1/gcc-13.1.0/gcc/var-tracking.cc:9544 Please submit a full bug report, with preprocessed source (by using -freport-bug). Please include the complete backtrace with any bug report. See <https://bugs.gentoo.org/> for instructions. ```
next reply other threads:[~2023-04-29 1:29 UTC|newest] Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-04-29 1:29 sjames at gcc dot gnu.org [this message] 2023-04-29 2:33 ` [Bug debug/109676] " pinskia at gcc dot gnu.org 2023-04-29 2:48 ` pinskia at gcc dot gnu.org 2023-04-29 4:26 ` sjames at gcc dot gnu.org 2023-04-29 20:22 ` sjames at gcc dot gnu.org 2023-04-29 20:51 ` pinskia at gcc dot gnu.org 2023-04-29 20:51 ` pinskia at gcc dot gnu.org 2023-04-29 20:57 ` pinskia at gcc dot gnu.org 2023-04-29 21:05 ` pinskia at gcc dot gnu.org 2023-04-29 21:08 ` pinskia at gcc dot gnu.org 2023-04-29 21:56 ` pinskia at gcc dot gnu.org 2023-04-29 23:31 ` [Bug debug/109676] [13/14 regression] ICE in simplify_subreg, at simplify-rtx.cc:7426 when building firefox with -O2 -march=alderlake -g since r13-3378-gf6c168f8c06047 sjames at gcc dot gnu.org 2023-05-01 9:13 ` jakub at gcc dot gnu.org 2023-05-01 11:21 ` jakub at gcc dot gnu.org 2023-05-01 13:01 ` jakub at gcc dot gnu.org 2023-05-02 6:24 ` rguenth at gcc dot gnu.org 2023-05-04 7:37 ` cvs-commit at gcc dot gnu.org 2023-05-04 7:44 ` cvs-commit at gcc dot gnu.org 2023-07-27 9:25 ` rguenth at gcc dot gnu.org 2023-11-06 1:36 ` pinskia at gcc dot gnu.org
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=bug-109676-4@http.gcc.gnu.org/bugzilla/ \ --to=gcc-bugzilla@gcc.gnu.org \ --cc=gcc-bugs@gcc.gnu.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).