[Bug c++/87513] New: internal compiler error: in write_expression, at cp/mangle.c:3050

sergeev917 at gmail dot com gcc-bugzilla@gcc.gnu.org
Thu Oct 4 10:04:00 GMT 2018 

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87513

            Bug ID: 87513
           Summary: internal compiler error: in write_expression, at
                    cp/mangle.c:3050
           Product: gcc
           Version: 8.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: sergeev917 at gmail dot com
  Target Milestone: ---

Created attachment 44780
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44780&action=edit
preprocessed code sample

=== compiler and system information ===

$ g++-8.2.0 -v
Using built-in specs.
COLLECT_GCC=g++-8.2.0
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-pc-linux-gnu/8.2.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with:
/var/tmp/portage/sys-devel/gcc-8.2.0-r3/work/gcc-8.2.0/configure
--host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --prefix=/usr
--bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/8.2.0
--includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.0/include
--datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/8.2.0
--mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/8.2.0/man
--infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/8.2.0/info
--with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.0/include/g++-v8
--with-python-dir=/share/gcc-data/x86_64-pc-linux-gnu/8.2.0/python
--enable-languages=c,c++,go,fortran --enable-obsolete --enable-secureplt
--disable-werror --with-system-zlib --disable-nls --enable-checking=release
--with-bugurl=https://bugs.gentoo.org/ --with-pkgversion='Gentoo 8.2.0-r3 p1.4'
--disable-esp --enable-libstdcxx-time --disable-libstdcxx-pch --enable-shared
--enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu
--disable-multilib --with-multilib-list=m64 --disable-altivec
--disable-fixed-point --enable-targets=all --enable-libgomp
--disable-libmudflap --disable-libssp --disable-libmpx --disable-systemtap
--enable-vtable-verify --enable-libvtv --enable-lto --without-isl
--enable-libsanitizer --enable-default-pie --enable-default-ssp
Thread model: posix
gcc version 8.2.0 (Gentoo 8.2.0-r3 p1.4)


=== the complete command line that triggers the bug, the compiler output ===

$ g++-8.2.0 -std=c++14 -o /dev/null -c ice_sample_8.2.0.ii 
In file included from main.cc:2:
crow/app.h: In instantiation of 'typename std::result_of<decltype (&
crow::Router::new_rule_tagged<Tag>)(crow::Router,
std::__cxx11::basic_string<char>&&)>::type
crow::Crow<Middlewares>::route(std::__cxx11::string&&) [with long unsigned int
Tag = 0; Middlewares = {}]':
main.cc:8:1:   required from here
crow/app.h:63:14: internal compiler error: in write_expression, at
cp/mangle.c:3050
         auto route(std::string&& rule)
              ^~~~~
0x59167a write_expression
       
/var/tmp/portage/sys-devel/gcc-8.2.0-r3/work/gcc-8.2.0/gcc/cp/mangle.c:3050
0x65a9af write_expression
       
/var/tmp/portage/sys-devel/gcc-8.2.0-r3/work/gcc-8.2.0/gcc/cp/mangle.c:3373
0x65876e write_type
       
/var/tmp/portage/sys-devel/gcc-8.2.0-r3/work/gcc-8.2.0/gcc/cp/mangle.c:2352
0x659d1d write_bare_function_type
       
/var/tmp/portage/sys-devel/gcc-8.2.0-r3/work/gcc-8.2.0/gcc/cp/mangle.c:2731
0x65d39b write_function_type
       
/var/tmp/portage/sys-devel/gcc-8.2.0-r3/work/gcc-8.2.0/gcc/cp/mangle.c:2706
0x658244 write_type
       
/var/tmp/portage/sys-devel/gcc-8.2.0-r3/work/gcc-8.2.0/gcc/cp/mangle.c:2214
0x65d58b write_template_args
       
/var/tmp/portage/sys-devel/gcc-8.2.0-r3/work/gcc-8.2.0/gcc/cp/mangle.c:2841
0x65d8da write_prefix
       
/var/tmp/portage/sys-devel/gcc-8.2.0-r3/work/gcc-8.2.0/gcc/cp/mangle.c:1146
0x6574ba write_nested_name
       
/var/tmp/portage/sys-devel/gcc-8.2.0-r3/work/gcc-8.2.0/gcc/cp/mangle.c:1076
0x658680 write_type
       
/var/tmp/portage/sys-devel/gcc-8.2.0-r3/work/gcc-8.2.0/gcc/cp/mangle.c:2232
0x659d1d write_bare_function_type
       
/var/tmp/portage/sys-devel/gcc-8.2.0-r3/work/gcc-8.2.0/gcc/cp/mangle.c:2731
0x65dcf4 mangle_decl_string
       
/var/tmp/portage/sys-devel/gcc-8.2.0-r3/work/gcc-8.2.0/gcc/cp/mangle.c:3795
0x65df28 get_mangled_id
       
/var/tmp/portage/sys-devel/gcc-8.2.0-r3/work/gcc-8.2.0/gcc/cp/mangle.c:3817
0x65df28 mangle_decl(tree_node*)
       
/var/tmp/portage/sys-devel/gcc-8.2.0-r3/work/gcc-8.2.0/gcc/cp/mangle.c:3855
0xdaaf99 decl_assembler_name(tree_node*)
        /var/tmp/portage/sys-devel/gcc-8.2.0-r3/work/gcc-8.2.0/gcc/tree.c:687
0x7e0fc5 symbol_table::insert_to_assembler_name_hash(symtab_node*, bool)
        /var/tmp/portage/sys-devel/gcc-8.2.0-r3/work/gcc-8.2.0/gcc/symtab.c:174
0x7e1924 symbol_table::symtab_initialize_asm_name_hash()
        /var/tmp/portage/sys-devel/gcc-8.2.0-r3/work/gcc-8.2.0/gcc/symtab.c:266
0x7e19b4 symbol_table::symtab_initialize_asm_name_hash()
        /var/tmp/portage/sys-devel/gcc-8.2.0-r3/work/gcc-8.2.0/gcc/symtab.c:976
0x7e19b4 symtab_node::get_for_asmname(tree_node const*)
        /var/tmp/portage/sys-devel/gcc-8.2.0-r3/work/gcc-8.2.0/gcc/symtab.c:964
0x7f1660 handle_alias_pairs
       
/var/tmp/portage/sys-devel/gcc-8.2.0-r3/work/gcc-8.2.0/gcc/cgraphunit.c:1398


=== an (older) working version of the compiler ===
$ g++-7.3.0 -v
Using built-in specs.
COLLECT_GCC=g++-7.3.0
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-pc-linux-gnu/7.3.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with:
/var/tmp/portage/sys-devel/gcc-7.3.0-r3/work/gcc-7.3.0/configure
--host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --prefix=/usr
--bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/7.3.0
--includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include
--datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/7.3.0
--mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/7.3.0/man
--infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/7.3.0/info
--with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7
--with-python-dir=/share/gcc-data/x86_64-pc-linux-gnu/7.3.0/python
--enable-languages=c,c++,go,fortran --enable-obsolete --enable-secureplt
--disable-werror --with-system-zlib --disable-nls --enable-checking=release
--with-bugurl=https://bugs.gentoo.org/ --with-pkgversion='Gentoo 7.3.0-r3 p1.4'
--disable-esp --enable-libstdcxx-time --disable-libstdcxx-pch --enable-shared
--enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu
--disable-multilib --with-multilib-list=m64 --disable-altivec
--disable-fixed-point --enable-targets=all --disable-libgcj --enable-libgomp
--disable-libmudflap --disable-libssp --disable-libcilkrts --enable-libmpx
--enable-vtable-verify --enable-libvtv --enable-lto --without-isl
--enable-libsanitizer --enable-default-pie --enable-default-ssp
Thread model: posix
gcc version 7.3.0 (Gentoo 7.3.0-r3 p1.4)

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