From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 6AC25385E440; Fri, 16 Apr 2021 05:37:43 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 6AC25385E440 From: "lh_mouse at 126 dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/100111] New: `-fno-elide-constructors` causes ICE in GCC 10.3 Date: Fri, 16 Apr 2021 05:37:42 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c++ X-Bugzilla-Version: 10.3.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: lh_mouse at 126 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 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 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: Fri, 16 Apr 2021 05:37:43 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100111 Bug ID: 100111 Summary: `-fno-elide-constructors` causes ICE in GCC 10.3 Product: gcc Version: 10.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: lh_mouse at 126 dot com Target Milestone: --- Host: x86_64-linux-gnu Target: x86_64-linux-gnu Created attachment 50610 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D50610&action=3Dedit minimum testcase ``` lh_mouse@lhmouse-ideapad ~/Desktop $ cat ice.cc // g++-10 -fno-elide-constructors ice.cc struct b {}; struct j : b { int e; constexpr j(b k) : b(k), e() {} }; struct g { j h; constexpr g() : h({}) {} } a; lh_mouse@lhmouse-ideapad ~/Desktop $ g++-10 -fno-elide-constructors ice.cc ice.cc:11:3: in =E2=80=98constexpr=E2=80=99 expansion of =E2=80=98a.g::g(= )=E2=80=99 ice.cc:10:23: in =E2=80=98constexpr=E2=80=99 expansion of =E2=80=98((g*)t= his)->g::h.j::j((b(), b()))=E2=80=99 ice.cc:11:3: internal compiler error: in cxx_eval_store_expression, at cp/constexpr.c:4939 11 | } a; | ^ Please submit a full bug report, with preprocessed source if appropriate. See for instructions. ``` ``` lh_mouse@lhmouse-ideapad ~/Desktop $ g++-10 -v Using built-in specs. COLLECT_GCC=3Dg++-10 COLLECT_LTO_WRAPPER=3D/usr/lib/gcc/x86_64-linux-gnu/10/lto-wrapper OFFLOAD_TARGET_NAMES=3Dnvptx-none:amdgcn-amdhsa:hsa OFFLOAD_TARGET_DEFAULT=3D1 Target: x86_64-linux-gnu Configured with: ../src/configure -v --with-pkgversion=3D'Ubuntu 10.3.0-1ubuntu1~20.04~2' --with-bugurl=3Dfile:///usr/share/doc/gcc-10/READM= E.Bugs --enable-languages=3Dc,ada,c++,go,brig,d,fortran,objc,obj-c++,m2 --prefix= =3D/usr --with-gcc-major-version-only --program-suffix=3D-10 --program-prefix=3Dx86_64-linux-gnu- --enable-shared --enable-linker-build-= id --libexecdir=3D/usr/lib --without-included-gettext --enable-threads=3Dposix --libdir=3D/usr/lib --enable-nls --enable-bootstrap --enable-clocale=3Dgnu --enable-libstdcxx-debug --enable-libstdcxx-time=3Dyes --with-default-libstdcxx-abi=3Dnew --enable-gnu-unique-object --disable-vtable-verify --enable-plugin --enable-default-pie --with-system-= zlib --enable-libphobos-checking=3Drelease --with-target-system-zlib=3Dauto --enable-objc-gc=3Dauto --enable-multiarch --disable-werror --with-arch-32= =3Di686 --with-abi=3Dm64 --with-multilib-list=3Dm32,m64,mx32 --enable-multilib --with-tune=3Dgeneric --enable-offload-targets=3Dnvptx-none=3D/build/gcc-10-S8Osas/gcc-10-10.3.0/= debian/tmp-nvptx/usr,amdgcn-amdhsa=3D/build/gcc-10-S8Osas/gcc-10-10.3.0/deb= ian/tmp-gcn/usr,hsa --without-cuda-driver --enable-checking=3Drelease --build=3Dx86_64-linux-gnu --host=3Dx86_64-linux-gnu --target=3Dx86_64-linux-gnu --with-build-config=3Dbootstrap-lto-lean --enable-link-mutex Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 10.3.0 (Ubuntu 10.3.0-1ubuntu1~20.04~2)=20 ```=