From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 1A8A73858C39; Sat, 3 Feb 2024 10:21:41 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 1A8A73858C39 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1706955701; bh=wJ3Lt4/ZGT8Of5IxA7dq9P8Q21dZmc2o7upgowEYWWE=; h=From:To:Subject:Date:From; b=t38zlIjWAI6UtJZYT1VlZx/yosbINf6FDKTsH7LNW1jxYlpEaquWxjZ4cySOTkPer f0lI17HwbbmtVnIMEYx2Dp5y1AVumBko0OqzBAa8vg0F4Q0ZCfS2fjxyIX79dGytfO MNfTSfYisM1J4Ld/JN+Y6LX9VDQshy32aMhXCYNg= From: "zsojka at seznam dot cz" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/113738] New: [14 Regression] ICE: in df_reg_chain_verify_unmarked, at df-scan.cc:4001 with -O2 -march=rv64gcv Date: Sat, 03 Feb 2024 10:21:40 +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: zsojka at seznam 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 target_milestone cf_gcchost cf_gcctarget 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=3D113738 Bug ID: 113738 Summary: [14 Regression] ICE: in df_reg_chain_verify_unmarked, at df-scan.cc:4001 with -O2 -march=3Drv64gcv 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: zsojka at seznam dot cz Target Milestone: --- Host: x86_64-pc-linux-gnu Target: riscv64-unknown-linux-gnu Created attachment 57305 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D57305&action=3Dedit reduced testcase (from gcc.dg/torture/pr45764.c) Compiler output: $ riscv64-unknown-linux-gnu-gcc -O2 -march=3Drv64gcv testcase.c=20 during RTL pass: rtl_dce testcase.c: In function 'foo': testcase.c:7:1: internal compiler error: in df_reg_chain_verify_unmarked, at df-scan.cc:4001 7 | } | ^ 0xa138ee df_reg_chain_verify_unmarked /repo/gcc-trunk/gcc/df-scan.cc:4001 0xa15111 df_reg_chain_verify_unmarked /repo/gcc-trunk/gcc/df-scan.cc:4218 0xa15111 df_scan_verify() /repo/gcc-trunk/gcc/df-scan.cc:4264 0x11f06d1 df_verify() /repo/gcc-trunk/gcc/df-core.cc:1834 0x11f06d1 df_analyze_1 /repo/gcc-trunk/gcc/df-core.cc:1221 0x29de3d5 init_dce /repo/gcc-trunk/gcc/dce.cc:763 0x29e103d rest_of_handle_fast_dce /repo/gcc-trunk/gcc/dce.cc:1193 0x29e103d execute /repo/gcc-trunk/gcc/dce.cc:1290 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. $ riscv64-unknown-linux-gnu-gcc -v Using built-in specs. COLLECT_GCC=3D/repo/gcc-trunk/binary-latest-riscv64/bin/riscv64-unknown-lin= ux-gnu-gcc COLLECT_LTO_WRAPPER=3D/repo/gcc-trunk/binary-trunk-r14-8771-20240203001826-= g4b7d4d8a4af-checking-yes-rtl-df-extra-riscv64/bin/../libexec/gcc/riscv64-u= nknown-linux-gnu/14.0.1/lto-wrapper Target: riscv64-unknown-linux-gnu Configured with: /repo/gcc-trunk//configure --enable-languages=3Dc,c++ --enable-valgrind-annotations --disable-nls --enable-checking=3Dyes,rtl,df,= extra --with-cloog --with-ppl --with-isl --with-isa-spec=3D2.2 --with-sysroot=3D/usr/riscv64-unknown-linux-gnu --build=3Dx86_64-pc-linux-g= nu --host=3Dx86_64-pc-linux-gnu --target=3Driscv64-unknown-linux-gnu --with-ld=3D/usr/bin/riscv64-unknown-linux-gnu-ld --with-as=3D/usr/bin/riscv64-unknown-linux-gnu-as --disable-multilib --disable-libstdcxx-pch --prefix=3D/repo/gcc-trunk//binary-trunk-r14-8771-20240203001826-g4b7d4d8a4= af-checking-yes-rtl-df-extra-riscv64 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 14.0.1 20240203 (experimental) (GCC)=