https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56973
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed|2013-04-24 00:00:00 |2017-1-14
CC| |msebor at gcc dot gnu.org
Known to fail| |6.3.0
--- Comment #3 from Martin Sebor <msebor at gcc dot gnu.org> ---
I still see the crash with GCC 6 (the program runs fine when compiled with
Clang).
$ /build/gcc-6-branch/gcc/xg++ -B /build/gcc-6-branch/gcc -nostdinc++ -I
/build/gcc-6-branch/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu
-I /build/gcc-6-branch/x86_64-pc-linux-gnu/libstdc++-v3/include -I
/src/gcc/6-branch/libstdc++-v3/libsupc++ -I
/src/gcc/6-branch/libstdc++-v3/include/backward -I
/src/gcc/6-branch/libstdc++-v3/testsuite/util -L
/build/gcc-6-branch/x86_64-pc-linux-gnu/libstdc++-v3/src/.libs -O1 -g t.C &&
gdb -q -ex 'r e4 e4 e4' -ex bt -ex 'x/i $pc' -ex 'p $rdi' ./a.out
Reading symbols from ./a.out...done.
Starting program: /home/msebor/build/tmp/a.out e4 e4 e4
Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7336266 in __strcmp_ssse3 () from /lib64/libc.so.6
#0 0x00007ffff7336266 in __strcmp_ssse3 () from /lib64/libc.so.6
#1 0x0000000000400656 in operator() (s=<optimized out>,
__closure=<synthetic pointer>) at t.C:19
#2 operator() (s=<optimized out>, __closure=<synthetic pointer>) at t.C:25
#3 test (s=<optimized out>) at t.C:28
#4 0x0000000000400685 in main (argc=<optimized out>, argv=0x7fffffffdf38)
at t.C:33
=> 0x7ffff7336266 <__strcmp_ssse3+22>: movlpd (%rdi),%xmm1
$1 = 1
GCC 7 fails to compile the test case with the errors below:
t.C: In lambda function:
t.C:24:26: error: no matching function for call to ‘begin(const test(const
char*)::<unnamed struct> [6])’
it=std::begin(ar);
^
In file included from
/build/gcc-svn/x86_64-pc-linux-gnu/libstdc++-v3/include/bits/range_access.h:36:0,
from
/build/gcc-svn/x86_64-pc-linux-gnu/libstdc++-v3/include/string:51,
from
/build/gcc-svn/x86_64-pc-linux-gnu/libstdc++-v3/include/bits/locale_classes.h:40,
from
/build/gcc-svn/x86_64-pc-linux-gnu/libstdc++-v3/include/bits/ios_base.h:41,
from
/build/gcc-svn/x86_64-pc-linux-gnu/libstdc++-v3/include/ios:42,
from
/build/gcc-svn/x86_64-pc-linux-gnu/libstdc++-v3/include/ostream:38,
from
/build/gcc-svn/x86_64-pc-linux-gnu/libstdc++-v3/include/iterator:64,
from t.C:3:
/src/gcc/svn/libstdc++-v3/libsupc++/initializer_list:89:5: note: candidate:
template<class _Tp> constexpr const _Tp* std::begin(std::initializer_list<_Tp>)
begin(initializer_list<_Tp> __ils) noexcept
^~~~~
/src/gcc/svn/libstdc++-v3/libsupc++/initializer_list:89:5: note: template
argument deduction/substitution failed:
t.C:24:26: note: mismatched types ‘std::initializer_list<_Tp>’ and ‘const
test(const char*)::<unnamed struct>*’
it=std::begin(ar);
^
In file included from
/build/gcc-svn/x86_64-pc-linux-gnu/libstdc++-v3/include/string:51:0,
from
/build/gcc-svn/x86_64-pc-linux-gnu/libstdc++-v3/include/bits/locale_classes.h:40,
from
/build/gcc-svn/x86_64-pc-linux-gnu/libstdc++-v3/include/bits/ios_base.h:41,
from
/build/gcc-svn/x86_64-pc-linux-gnu/libstdc++-v3/include/ios:42,
from
/build/gcc-svn/x86_64-pc-linux-gnu/libstdc++-v3/include/ostream:38,
from
/build/gcc-svn/x86_64-pc-linux-gnu/libstdc++-v3/include/iterator:64,
from t.C:3:
/build/gcc-svn/x86_64-pc-linux-gnu/libstdc++-v3/include/bits/range_access.h:48:5:
note: candidate: template<class _Container> decltype (__cont.begin())
std::begin(_Container&)
begin(_Container& __cont) -> decltype(__cont.begin())
^~~~~
/build/gcc-svn/x86_64-pc-linux-gnu/libstdc++-v3/include/bits/range_access.h:48:5:
note: template argument deduction/substitution failed:
/build/gcc-svn/x86_64-pc-linux-gnu/libstdc++-v3/include/bits/range_access.h: In
substitution of ‘template<class _Container> decltype (__cont.begin())
std::begin(_Container&) [with _Container = const test(const char*)::<unnamed
struct> [6]]’:
t.C:24:26: required from here
/build/gcc-svn/x86_64-pc-linux-gnu/libstdc++-v3/include/bits/range_access.h:48:50:
error: request for member ‘begin’ in ‘__cont’, which is of non-class type
‘const test(const char*)::<unnamed struct> [6]’
begin(_Container& __cont) -> decltype(__cont.begin())
~~~~~~~^~~~~
/build/gcc-svn/x86_64-pc-linux-gnu/libstdc++-v3/include/bits/range_access.h:58:5:
note: candidate: template<class _Container> decltype (__cont.begin())
std::begin(const _Container&)
begin(const _Container& __cont) -> decltype(__cont.begin())
^~~~~
/build/gcc-svn/x86_64-pc-linux-gnu/libstdc++-v3/include/bits/range_access.h:58:5:
note: template argument deduction/substitution failed:
/build/gcc-svn/x86_64-pc-linux-gnu/libstdc++-v3/include/bits/range_access.h: In
substitution of ‘template<class _Container> decltype (__cont.begin())
std::begin(const _Container&) [with _Container = test(const char*)::<unnamed
struct> [6]]’:
t.C:24:26: required from here
/build/gcc-svn/x86_64-pc-linux-gnu/libstdc++-v3/include/bits/range_access.h:58:56:
error: request for member ‘begin’ in ‘__cont’, which is of non-class type
‘const test(const char*)::<unnamed struct> [6]’
begin(const _Container& __cont) -> decltype(__cont.begin())
~~~~~~~^~~~~
/build/gcc-svn/x86_64-pc-linux-gnu/libstdc++-v3/include/bits/range_access.h:87:5:
note: candidate: _Tp* std::begin(_Tp (&)[_Nm]) [with _Tp = const test(const
char*)::<unnamed struct>; long unsigned int _Nm = 6]
begin(_Tp (&__arr)[_Nm])
^~~~~
/build/gcc-svn/x86_64-pc-linux-gnu/libstdc++-v3/include/bits/range_access.h:87:5:
note: no known conversion for argument 1 from ‘const test(const
char*)::<unnamed struct> [6]’ to ‘const test(const char*)::<unnamed struct>
(&)[6]’
