From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 903B63858417; Wed, 13 Dec 2023 19:08:55 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 903B63858417 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1702494535; bh=4KM+znYeW4ZCplOLGF0RrAsy43DTSoz+xvgx/6bYwiQ=; h=From:To:Subject:Date:From; b=sXbXw+/AyqcLNtIv4dNrlAttP7ThLfcPvvfOMXSpZT4jP3rOZoNvKwNCY5wS2R+GD GWgvCqlnsk5FSVOVy3QVG6shGxSo/CEdfHOCb1l67VdGBk9uE77urSHCLySS5BzFc6 hW9gGZqKBVYQpDKoUU3+JYuWu6wc5ONbzx79fv4s= From: "patrick at rivosinc dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/113001] New: [14 Regression] RISCV Zicond ICE: in extract_insn, at recog.cc:2812 with -O2 rv64gcv_zicond Date: Wed, 13 Dec 2023 19:08:55 +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: X-Bugzilla-Severity: normal X-Bugzilla-Who: patrick at rivosinc 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 bug_severity priority component assigned_to reporter target_milestone attachments.created 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=3D113001 Bug ID: 113001 Summary: [14 Regression] RISCV Zicond ICE: in extract_insn, at recog.cc:2812 with -O2 rv64gcv_zicond Product: gcc Version: 14.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: patrick at rivosinc dot com Target Milestone: --- Created attachment 56872 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D56872&action=3Dedit -freport-bug output > /scratch/tc-testing/tc-dec-13-trunk/build-rv64gcv/bin/riscv64-unknown-lin= ux-gnu-gcc -march=3Drv64gc_zicond -mabi=3Dlp64d -O2 red.c -freport-bug red.c: In function 'g': red.c:11:1: error: unrecognizable insn: 11 | } | ^ (insn 14 13 15 4 (set (reg:DI 145) (if_then_else:DI (ne:DI (reg:DI 138 [ _7 ]) (const_int 0 [0])) (reg:DI 138 [ _7 ]) (reg:DI 146))) -1 (nil)) during RTL pass: vregs red.c:11:1: internal compiler error: in extract_insn, at recog.cc:2812 0xa2a515 _fatal_insn(char const*, rtx_def const*, char const*, int, char const*) ../../../gcc/gcc/rtl-error.cc:108 0xa2a537 _fatal_insn_not_found(rtx_def const*, char const*, int, char const= *) ../../../gcc/gcc/rtl-error.cc:116 0xa28e0b extract_insn(rtx_insn*) ../../../gcc/gcc/recog.cc:2812 0xedee3e instantiate_virtual_regs_in_insn ../../../gcc/gcc/function.cc:1611 0xedee3e instantiate_virtual_regs ../../../gcc/gcc/function.cc:1994 0xedee3e execute ../../../gcc/gcc/function.cc:2041 Please submit a full bug report, with preprocessed source. Please include the complete backtrace with any bug report. See for instructions. Preprocessed source stored into /scratch/tmp/ccw1t5xI.out file, please atta= ch this to your bugreport. Testcase: long a, b; int c, d; void e(long *f) { (b =3D *f) && --b; for (; c;) ; } void g() { for (; d; d--) e(&a); } Godbolt: https://godbolt.org/z/s6hqh6eo8 -freport bug output is attached. pr112871 looks related but is on rv32gc_zicond.=