From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 73C2C3857804; Tue, 15 Dec 2020 12:43:53 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 73C2C3857804 From: "zsojka at seznam dot cz" To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/98287] New: [10/11 Regression] ICE: in expand_expr_real_2, at expr.c:10000 with -O2 -fno-tree-ccp -fno-tree-forwprop Date: Tue, 15 Dec 2020 12:43:53 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: rtl-optimization X-Bugzilla-Version: 11.0 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 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 X-BeenThere: gcc-bugs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-bugs mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 15 Dec 2020 12:43:53 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98287 Bug ID: 98287 Summary: [10/11 Regression] ICE: in expand_expr_real_2, at expr.c:10000 with -O2 -fno-tree-ccp -fno-tree-forwprop Product: gcc Version: 11.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: rtl-optimization Assignee: unassigned at gcc dot gnu.org Reporter: zsojka at seznam dot cz Target Milestone: --- Host: x86_64-pc-linux-gnu Created attachment 49768 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D49768&action=3Dedit reduced testcase Compiler output: $ x86_64-pc-linux-gnu-gcc -O2 -fno-tree-ccp -fno-tree-forwprop testcase.c during RTL pass: expand testcase.c: In function 'bar': testcase.c:7:22: internal compiler error: in expand_expr_real_2, at expr.c:10000 7 | return v >> s << s | v >> s >> 63; | ~~~~~~~~~~~~^~~~~~~~~~~~~~ 0x661c3d expand_expr_real_2(separate_ops*, rtx_def*, machine_mode, expand_modifier) /repo/gcc-trunk/gcc/expr.c:10000 0xc21188 expand_expr_real_1(tree_node*, rtx_def*, machine_mode, expand_modifier, rtx_def**, bool) /repo/gcc-trunk/gcc/expr.c:10201 0xaeb6ab expand_expr /repo/gcc-trunk/gcc/expr.h:282 0xaeb6ab expand_return /repo/gcc-trunk/gcc/cfgexpand.c:3764 0xaeb6ab expand_gimple_stmt_1 /repo/gcc-trunk/gcc/cfgexpand.c:3873 0xaeb6ab expand_gimple_stmt /repo/gcc-trunk/gcc/cfgexpand.c:3999 0xaf0c4b expand_gimple_basic_block /repo/gcc-trunk/gcc/cfgexpand.c:6036 0xaf27c6 execute /repo/gcc-trunk/gcc/cfgexpand.c:6720 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See for instructions. $ x86_64-pc-linux-gnu-gcc -v Using built-in specs. COLLECT_GCC=3D/repo/gcc-trunk/binary-latest/bin/x86_64-pc-linux-gnu-gcc COLLECT_LTO_WRAPPER=3D/repo/gcc-trunk/binary-trunk-r11-6041-20201215101608-= g69bd5d473d2-checking-yes-rtl-df-extra-amd64/bin/../libexec/gcc/x86_64-pc-l= inux-gnu/11.0.0/lto-wrapper Target: x86_64-pc-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 --build=3Dx86_64-pc-linux-gnu --host=3Dx86_64-pc-linux-gnu --target=3Dx86_64-pc-linux-gnu --with-ld=3D/usr/bin/x86_64-pc-linux-gnu-ld --with-as=3D/usr/bin/x86_64-pc-linux-gnu-as --disable-libstdcxx-pch --prefix=3D/repo/gcc-trunk//binary-trunk-r11-6041-20201215101608-g69bd5d473= d2-checking-yes-rtl-df-extra-amd64 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 11.0.0 20201215 (experimental) (GCC)=