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* [Bug c++/111776] New: ICE on delete expression with multiple viable destroying operator delete @ 2023-10-11 19:58 leni536 at gmail dot com 2023-10-11 20:08 ` [Bug c++/111776] " mpolacek at gcc dot gnu.org ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: leni536 at gmail dot com @ 2023-10-11 19:58 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111776 Bug ID: 111776 Summary: ICE on delete expression with multiple viable destroying operator delete Product: gcc Version: 13.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: leni536 at gmail dot com Target Milestone: --- version: gcc 13.2.0 flags: -std=c++20 -O2 -pedantic-errors ``` #include <memory> struct B { void operator delete(B* ptr, std::destroying_delete_t); }; struct D : B { void operator delete(D* ptr, std::destroying_delete_t); using B::operator delete; }; void bar(D* ptr) { delete ptr; } ``` internal compiler error: in build_op_delete_call, at cp/call.cc:7914 13 | delete ptr; | ^~~ 0x1ce7bde internal_error(char const*, ...) ???:0 0x7290fc fancy_abort(char const*, int, char const*) ???:0 0x7eb68c build_delete(unsigned int, tree_node*, tree_node*, special_function_kind, int, int, int) ???:0 0x7d3757 delete_sanity(unsigned int, tree_node*, tree_node*, bool, int, int) ???:0 0x89fd5b c_parse_file() ???:0 0x98c5d9 c_common_parse_file() ???:0 https://godbolt.org/z/8rh7h7EWz I'm not entirely sure what should actually happen here. I didn't find a disambiguating rule at https://timsong-cpp.github.io/cppwp/n4868/expr.delete#10 . ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/111776] ICE on delete expression with multiple viable destroying operator delete 2023-10-11 19:58 [Bug c++/111776] New: ICE on delete expression with multiple viable destroying operator delete leni536 at gmail dot com @ 2023-10-11 20:08 ` mpolacek at gcc dot gnu.org 2023-10-13 7:54 ` leni536 at gmail dot com 2023-11-15 10:37 ` leni536 at gmail dot com 2 siblings, 0 replies; 4+ messages in thread From: mpolacek at gcc dot gnu.org @ 2023-10-11 20:08 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111776 Marek Polacek <mpolacek at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mpolacek at gcc dot gnu.org Last reconfirmed| |2023-10-11 Status|UNCONFIRMED |NEW Ever confirmed|0 |1 --- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> --- Confirmed. even g++9 ICEs. g++8 gives errors. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/111776] ICE on delete expression with multiple viable destroying operator delete 2023-10-11 19:58 [Bug c++/111776] New: ICE on delete expression with multiple viable destroying operator delete leni536 at gmail dot com 2023-10-11 20:08 ` [Bug c++/111776] " mpolacek at gcc dot gnu.org @ 2023-10-13 7:54 ` leni536 at gmail dot com 2023-11-15 10:37 ` leni536 at gmail dot com 2 siblings, 0 replies; 4+ messages in thread From: leni536 at gmail dot com @ 2023-10-13 7:54 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111776 --- Comment #2 from Lénárd Szolnoki <leni536 at gmail dot com> --- Same ICE without destroying delete: ``` struct A { void operator delete(void *); }; struct B { void operator delete(void *); }; struct C : A, B { using A::operator delete; using B::operator delete; }; void f(C* ptr) { delete ptr; } ``` This goes back to GCC 7. GCC 6 accepts it and calls `A::operator delete`, which is not much better. https://godbolt.org/z/cczfdKoqb ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/111776] ICE on delete expression with multiple viable destroying operator delete 2023-10-11 19:58 [Bug c++/111776] New: ICE on delete expression with multiple viable destroying operator delete leni536 at gmail dot com 2023-10-11 20:08 ` [Bug c++/111776] " mpolacek at gcc dot gnu.org 2023-10-13 7:54 ` leni536 at gmail dot com @ 2023-11-15 10:37 ` leni536 at gmail dot com 2 siblings, 0 replies; 4+ messages in thread From: leni536 at gmail dot com @ 2023-11-15 10:37 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111776 --- Comment #3 from Lénárd Szolnoki <leni536 at gmail dot com> --- The C++ standard currently doesn't specify what the behavior of these program snippets are. This is CWG2805. https://cplusplus.github.io/CWG/issues/2805.html ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2023-11-15 10:37 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2023-10-11 19:58 [Bug c++/111776] New: ICE on delete expression with multiple viable destroying operator delete leni536 at gmail dot com 2023-10-11 20:08 ` [Bug c++/111776] " mpolacek at gcc dot gnu.org 2023-10-13 7:54 ` leni536 at gmail dot com 2023-11-15 10:37 ` leni536 at gmail dot com
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