Summary: | [ICE/5.3] sys-devel/gcc-5.3.0: internal compiler error: in create_tmp_var, at gimple-expr.c:519 | ||
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Product: | Gentoo Linux | Reporter: | Hunter L. Allen <hunter> |
Component: | [OLD] Development | Assignee: | Gentoo Toolchain Maintainers <toolchain> |
Status: | RESOLVED OBSOLETE | ||
Severity: | minor | CC: | kredba |
Priority: | Normal | ||
Version: | unspecified | ||
Hardware: | AMD64 | ||
OS: | Linux | ||
URL: | https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77739 | ||
See Also: |
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69001 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77739 |
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Whiteboard: | masked in 17.0 profiles | ||
Package list: | Runtime testing required: | --- | |
Bug Depends on: | 638030 | ||
Bug Blocks: | |||
Attachments: | This is the source that was being compiled. |
Description
Hunter L. Allen
2015-12-20 19:47:39 UTC
For some reason, a standard string cannot be placed in the labmda expression the way I attempted here. If you change it to a string literal, the source compiles and executes as intended. Fails for me too with almost trunk gcc-5.3.0. Please do report it upstream. I am trying to reduce it. Here is what creduce did: namespace std { inline namespace __cxx11 {} template <typename> class allocator; namespace __cxx11 { template <typename _CharT, typename = _CharT, typename = allocator<_CharT>> class basic_string; typedef basic_string<char> string; } template <typename> class allocator { public: template <typename> struct rebind { typedef allocator other; }; }; template <typename _Alloc, typename _Tp> struct __alloctr_rebind { typedef typename _Alloc::template rebind<_Tp>::other __type; }; template <typename _Alloc> struct allocator_traits { typedef decltype(0) pointer; template <typename _Tp> using rebind_alloc = typename __alloctr_rebind<_Alloc, _Tp>::__type; }; } namespace __gnu_cxx { template <typename _Alloc> struct __alloc_traits : std::allocator_traits<_Alloc> { typedef std::allocator_traits<_Alloc> _Base_type; template <typename _Tp> struct rebind { typedef typename _Base_type::template rebind_alloc<_Tp> other; }; }; } namespace std { namespace __cxx11 { template <typename _CharT, typename, typename _Alloc> class basic_string { typedef typename __gnu_cxx::__alloc_traits<_Alloc>::template rebind<_CharT>::other _Char_alloc_type; typedef __gnu_cxx::__alloc_traits<_Char_alloc_type> _Alloc_traits; public: typedef _Char_alloc_type allocator_type; typedef typename _Alloc_traits::pointer pointer; struct _Alloc_hider { _Alloc_hider(pointer, _Alloc); } _M_dataplus; pointer _M_local_data(); allocator_type _M_get_allocator(); basic_string(const basic_string &) : _M_dataplus(_M_local_data(), _M_get_allocator()) {} basic_string(_CharT *, _Alloc __a = _Alloc()) : _M_dataplus(_M_local_data(), __a) {} }; } } auto vglambda = [](auto printer) { return [=](auto &&... ts) { return [=] { printer(ts...); }; }; }; main() { vglambda([](auto, auto, auto) {})(std::string(""), "", ""); } Interesting... This is the first bug I've reported, so... Can you make precise what you mean by "upstream it." I can open it with GCC, if that's what you mean. Interesting... This is the first bug I've reported, so... Can you make precise what you mean by "upstream it." I can open it with GCC, if that's what you mean. Tomáš found an existing GCC bug report and linked it to this your report and I added your finding to it. As requested by Jakub Jelinek I opened a standalone PR69001 for you. https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69001. Upstream bug: Jakub Jelinek 2017-01-10 10:31:16 UTC Fixed with r242766 and r243407 for 6.x. Fixed in 6.4 and future 5.5 Fixed upstream in 6.x |