From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 17649 invoked by alias); 5 May 2013 14:56:15 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 17619 invoked by uid 48); 5 May 2013 14:56:12 -0000 From: "eda-qa at disemia dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/57178] New: bogus warning with -O3 using boost::optional Date: Sun, 05 May 2013 14:56:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c++ X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: eda-qa at disemia dot com X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: Message-ID: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-SW-Source: 2013-05/txt/msg00319.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D57178 Bug #: 57178 Summary: bogus warning with -O3 using boost::optional Classification: Unclassified Product: gcc Version: 4.6.3 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassigned@gcc.gnu.org ReportedBy: eda-qa@disemia.com GCC appears to be producing a bogus warning about an unitialized value. This happens at optimization levels -O1 and higher. It uses a boost optional as I was unable to reduce it to something more fundamental. Command line: g++ -c uninit_warn.cpp --std=3Dc++0x -Wuninitialized -O1 Warning: uninit_warn.cpp: In function =E2=80=98void test(boost::optional)=E2=80= =99: uninit_warn.cpp:17:12: warning: =E2=80=98*((void*)& q +4)=E2=80=99 may be u= sed uninitialised in this function [-Wuninitialized] >>From gcc-bugs-return-421648-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun May 05 15:19:03 2013 Return-Path: Delivered-To: listarch-gcc-bugs@gcc.gnu.org Received: (qmail 28600 invoked by alias); 5 May 2013 15:19:03 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Delivered-To: mailing list gcc-bugs@gcc.gnu.org Received: (qmail 28584 invoked by uid 48); 5 May 2013 15:18:59 -0000 From: "cartonmartin+gcc_bugzilla at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/57179] New: ICE on non-valid code with emplace_back Date: Sun, 05 May 2013 15:19:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c++ X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: cartonmartin+gcc_bugzilla at gmail dot com X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: Message-ID: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-SW-Source: 2013-05/txt/msg00321.txt.bz2 Content-length: 3911 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D57179 Bug #: 57179 Summary: ICE on non-valid code with emplace_back Classification: Unclassified Product: gcc Version: 4.7.3 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassigned@gcc.gnu.org ReportedBy: cartonmartin+gcc_bugzilla@gmail.com Created attachment 30035 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=3D30035 Preprocessed file g++ is asking me to give The following code produces an internal compiler error. The code is so simple that I am surprised I did not find a bug report for i= t. =3D=3D=3D=3D=3D=3D Code =3D=3D=3D=3D=3D=3D #include struct Sums { int pos; }; int main() { std::vector sums; sums.emplace_back(1); } =3D=3D=3D=3D=3D=3D g++ output =3D=3D=3D=3D=3D=3D $ g++ -std=3Dc++11 -v 345.cpp=20=20 Using built-in specs. COLLECT_GCC=3Dg++ COLLECT_LTO_WRAPPER=3D/usr/lib/gcc/x86_64-linux-gnu/4.7/lto-wrapper Target: x86_64-linux-gnu Configured with: ../src/configure -v --with-pkgversion=3D'Ubuntu/Linaro 4.7.3-1ubuntu1' --with-bugurl=3Dfile:///usr/share/doc/gcc-4.7/README.Bugs --enable-languages=3Dc,c++,go,fortran,objc,obj-c++ --prefix=3D/usr --program-suffix=3D-4.7 --enable-shared --enable-linker-build-id --libexecdir=3D/usr/lib --without-included-gettext --enable-threads=3Dposix --with-gxx-include-dir=3D/usr/include/c++/4.7 --libdir=3D/usr/lib --enable-= nls --with-sysroot=3D/ --enable-clocale=3Dgnu --enable-libstdcxx-debug --enable-libstdcxx-time=3Dyes --enable-gnu-unique-object --enable-plugin --with-system-zlib --enable-objc-gc --with-cloog --enable-cloog-backend=3Dp= pl --disable-cloog-version-check --disable-ppl-version-check --enable-multiarch --disable-werror --with-arch-32=3Di686 --with-abi=3Dm64 --with-multilib-list=3Dm32,m64,mx32 --with-tune=3Dgeneric --enable-checking= =3Drelease --build=3Dx86_64-linux-gnu --host=3Dx86_64-linux-gnu --target=3Dx86_64-linu= x-gnu Thread model: posix gcc version 4.7.3 (Ubuntu/Linaro 4.7.3-1ubuntu1)=20 COLLECT_GCC_OPTIONS=3D'-std=3Dc++11' '-v' '-shared-libgcc' '-mtune=3Dgeneri= c' '-march=3Dx86-64' /usr/lib/gcc/x86_64-linux-gnu/4.7/cc1plus -quiet -v -imultilib . -imultiar= ch x86_64-linux-gnu -D_GNU_SOURCE 345.cpp -quiet -dumpbase 345.cpp -mtune=3Dge= neric -march=3Dx86-64 -auxbase 345 -std=3Dc++11 -version -fstack-protector -o /tmp/ccBHCW6S.s GNU C++ (Ubuntu/Linaro 4.7.3-1ubuntu1) version 4.7.3 (x86_64-linux-gnu) compiled by GNU C version 4.7.3, GMP version 5.0.5, MPFR version 3.1.1-= p2, MPC version 0.9 GGC heuristics: --param ggc-min-expand=3D100 --param ggc-min-heapsize=3D131= 072 ignoring duplicate directory "/usr/include/x86_64-linux-gnu/c++/4.7" ignoring nonexistent directory "/usr/local/include/x86_64-linux-gnu" ignoring nonexistent directory "/usr/lib/gcc/x86_64-linux-gnu/4.7/../../../../x86_64-linux-gnu/include" #include "..." search starts here: #include <...> search starts here: /usr/include/c++/4.7 /usr/include/x86_64-linux-gnu/c++/4.7/. /usr/include/c++/4.7/backward /usr/lib/gcc/x86_64-linux-gnu/4.7/include /usr/local/include /usr/lib/gcc/x86_64-linux-gnu/4.7/include-fixed /usr/include/x86_64-linux-gnu /usr/include End of search list. GNU C++ (Ubuntu/Linaro 4.7.3-1ubuntu1) version 4.7.3 (x86_64-linux-gnu) compiled by GNU C version 4.7.3, GMP version 5.0.5, MPFR version 3.1.1-= p2, MPC version 0.9 GGC heuristics: --param ggc-min-expand=3D100 --param ggc-min-heapsize=3D131= 072 Compiler executable checksum: 7c3b96402a8920876e03e4e0d436665c =E2=80=98 Internal compiler error: Error reporting routines re-entered. Please submit a full bug report, with preprocessed source if appropriate. See for instructions. Preprocessed source stored into /tmp/cca4SK6X.out file, please attach this = to your bugreport. >>From gcc-bugs-return-421650-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun May 05 15:50:01 2013 Return-Path: Delivered-To: listarch-gcc-bugs@gcc.gnu.org Received: (qmail 7193 invoked by alias); 5 May 2013 15:50:01 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Delivered-To: mailing list gcc-bugs@gcc.gnu.org Received: (qmail 7084 invoked by uid 48); 5 May 2013 15:49:54 -0000 From: "redi at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug libstdc++/57173] Regex match group contain extraneous character... Date: Sun, 05 May 2013 15:50:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: libstdc++ X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: redi at gcc dot gnu.org X-Bugzilla-Status: RESOLVED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: Status Resolution Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 X-SW-Source: 2013-05/txt/msg00323.txt.bz2 Content-length: 576 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57173 Jonathan Wakely changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |DUPLICATE --- Comment #1 from Jonathan Wakely 2013-05-05 15:49:54 UTC --- std::regex is unimplemented, it's not expected to work. *** This bug has been marked as a duplicate of bug 53631 ***