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* [Bug c++/95371] New: [10 Regression] ICE concepts with template template parameter
@ 2020-05-27 18:42 gcc-bugs at marehr dot dialup.fu-berlin.de
  2020-05-27 19:05 ` [Bug c++/95371] [10/11 Regression] ICE concepts with template template parameter since r10-3735-gcb57504a55015891 marxin at gcc dot gnu.org
                   ` (6 more replies)
  0 siblings, 7 replies; 8+ messages in thread
From: gcc-bugs at marehr dot dialup.fu-berlin.de @ 2020-05-27 18:42 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95371

            Bug ID: 95371
           Summary: [10 Regression] ICE concepts with template template
                    parameter
           Product: gcc
           Version: 10.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gcc-bugs at marehr dot dialup.fu-berlin.de
  Target Milestone: ---

Hallo gcc-team,

the following code worked with gcc9, but ICEs with gcc 10.1 and in trunk

```c++
template <typename...>
struct configuration  {
    template <template <typename...> typename query_t>
    static constexpr bool exists() { return true; }

    template <template <typename...> typename query_t>
    void remove() requires(exists<query_t>());
};

int main() {
    configuration<> cfg{};
    cfg.remove<configuration>();
}
```

https://godbolt.org/z/NGU5i9


```
> g++-10 -std=c++2a
<source>: In function 'int main()':
<source>:12:31: internal compiler error: Segmentation fault
   12 |     cfg.remove<configuration>();
      |                               ^
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://gcc.gnu.org/bugs/> for instructions.
Compiler returned: 1
```

^ permalink raw reply	[flat|nested] 8+ messages in thread
end of thread, other threads:[~2020-06-01 19:52 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-05-27 18:42 [Bug c++/95371] New: [10 Regression] ICE concepts with template template parameter gcc-bugs at marehr dot dialup.fu-berlin.de
2020-05-27 19:05 ` [Bug c++/95371] [10/11 Regression] ICE concepts with template template parameter since r10-3735-gcb57504a55015891 marxin at gcc dot gnu.org
2020-05-27 19:07 ` marxin at gcc dot gnu.org
2020-05-28  7:37 ` rguenth at gcc dot gnu.org
2020-05-29 20:11 ` jason at gcc dot gnu.org
2020-05-29 22:19 ` cvs-commit at gcc dot gnu.org
2020-05-30  2:11 ` cvs-commit at gcc dot gnu.org
2020-06-01 19:51 ` jason at gcc dot gnu.org

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