Sorry for breaking these tests. This problem is very hard to reproduce. However, I had a patch to fix another compile-time problem which may be related to this one. http://gcc.gnu.org/ml/gcc-patches/2012-09/msg01491.html
After applying the patch, the PCH related bugs are not showing any more on my machines. Dehao On Thu, Sep 20, 2012 at 10:59 PM, Dehao Chen <de...@google.com> wrote: > Hi, Paolo, > > I'll look into the ICE problems now. > > Thanks, > Dehao > > On Thu, Sep 20, 2012 at 9:04 PM, Paolo Carlini <paolo.carl...@oracle.com> > wrote: >> Hi, >> >> >> On 09/19/2012 09:59 PM, Dehao Chen wrote: >>> >>> This patch was commited as r191494. >> >> I'm afraid I can't help *much* with the debugging, but on my x86_64-linux >> machine and a very straightforward configuration (--enable-languages=c++ >> --disable-multilib) after r191494 I'm seeing the following libstdc++ >> regressions. >> >> FAIL: 17_intro/headers/c++1998/all.cc (test for excess errors) >> FAIL: 17_intro/headers/c++1998/all_c++200x_compatibility.cc (test for excess >> errors) >> FAIL: 17_intro/headers/c++1998/all_pedantic_errors.cc (test for excess >> errors) >> FAIL: 17_intro/headers/c++1998/stdc++.cc (test for excess errors) >> FAIL: 17_intro/headers/c++1998/stdc++_multiple_inclusion.cc (test for excess >> errors) >> FAIL: 17_intro/headers/c++200x/stdc++.cc (test for excess errors) >> FAIL: 17_intro/headers/c++200x/stdc++_multiple_inclusion.cc (test for excess >> errors) >> >> are all ICEs like the below. Apparently PCHs are required, I can't reproduce >> outside the testsuite, without the library PCHs. >> >> Does it make any sense to you? Please let me know if I can somehow help. >> >> Thanks, >> Paolo. >> >> /////////////////// >> >> In file included from >> /home/paolo/Gcc/svn-dirs/trunk-build/x86_64-unknown-linux-gnu/libstdc++-v3/include/bits/basic_ios.h:39:0, >> from >> /home/paolo/Gcc/svn-dirs/trunk-build/x86_64-unknown-linux-gnu/libstdc++-v3/include/ios:45, >> from >> /home/paolo/Gcc/svn-dirs/trunk-build/x86_64-unknown-linux-gnu/libstdc++-v3/include/istream:40, >> from >> /home/paolo/Gcc/svn-dirs/trunk-build/x86_64-unknown-linux-gnu/libstdc++-v3/include/sstream:39, >> from >> /home/paolo/Gcc/svn-dirs/trunk-build/x86_64-unknown-linux-gnu/libstdc++-v3/include/complex:47, >> from >> /home/paolo/Gcc/svn-dirs/trunk-build/x86_64-unknown-linux-gnu/libstdc++-v3/include/x86_64-unknown-linux-gnu/bits/stdc++.h:67, >> from >> /home/paolo/Gcc/svn-dirs/trunk-build/x86_64-unknown-linux-gnu/libstdc++-v3/include/x86_64-unknown-linux-gnu/bits/stdtr1c++.h:29, >> from >> /scratch/Gcc/svn-dirs/trunk/libstdc++-v3/include/precompiled/extc++.h:30: >> /home/paolo/Gcc/svn-dirs/trunk-build/x86_64-unknown-linux-gnu/libstdc++-v3/include/bits/locale_facets.h: >> In member function 'virtual std::ctype<char>::char_type >> std::ctype<char>::do_widen(char) const': >> /home/paolo/Gcc/svn-dirs/trunk-build/x86_64-unknown-linux-gnu/libstdc++-v3/include/bits/locale_facets.h:1077:7: >> internal compiler error: Segmentation fault >> do_widen(char __c) const >> ^ >> Please submit a full bug report, >> with preprocessed source if appropriate. >> See <http://gcc.gnu.org/bugs.html> for instructions. >> >>
