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* [Bug c++/99550] New: ICE (segfault) on arm with -std=c++2a
@ 2021-03-11 13:09 delleyves at gmx dot ch
2021-03-11 15:24 ` [Bug c++/99550] " delleyves at gmx dot ch
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: delleyves at gmx dot ch @ 2021-03-11 13:09 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99550
Bug ID: 99550
Summary: ICE (segfault) on arm with -std=c++2a
Product: gcc
Version: 10.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: delleyves at gmx dot ch
Target Milestone: ---
The following code segfaults on "arm-gcc 10.2.1 (none)" (as found on
godbolt.org) when compiled with `-std=c++2a`, but not without that flag.
So does the official ARM GCC release gcc-arm-none-eabi-10-2020-q4-major on
Ubuntu.
On my OSX however, it doesn't segfault. Neither does the x86-64 gcc 10.2 on
godbolt.
```
#include <type_traits>
template <typename value_type_>
struct JoinedRange {
using value_type = value_type_;
template <bool is_const>
struct Iterator {
template <typename T>
using maybe_const_t = std::conditional_t<is_const, const T, T>;
template <bool>
friend class Iterator;
public:
using value_type = JoinedRange::value_type;
using reference = maybe_const_t<value_type>;
using pointer = maybe_const_t<value_type>*;
};
using iterator = Iterator<false>;
using const_iterator = Iterator<true>;
};
template class JoinedRange<int>;
```
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/99550] ICE (segfault) on arm with -std=c++2a
2021-03-11 13:09 [Bug c++/99550] New: ICE (segfault) on arm with -std=c++2a delleyves at gmx dot ch
@ 2021-03-11 15:24 ` delleyves at gmx dot ch
2021-12-15 1:29 ` [Bug target/99550] " pinskia at gcc dot gnu.org
2021-12-15 1:31 ` pinskia at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: delleyves at gmx dot ch @ 2021-03-11 15:24 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99550
--- Comment #1 from Yves Delley <delleyves at gmx dot ch> ---
See https://godbolt.org/z/ErEh55
Bug also submitted at https://bugs.launchpad.net/gcc-arm-embedded/+bug/1918693
Which is the right tracker for this?
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/99550] ICE (segfault) on arm with -std=c++2a
2021-03-11 13:09 [Bug c++/99550] New: ICE (segfault) on arm with -std=c++2a delleyves at gmx dot ch
2021-03-11 15:24 ` [Bug c++/99550] " delleyves at gmx dot ch
@ 2021-12-15 1:29 ` pinskia at gcc dot gnu.org
2021-12-15 1:31 ` pinskia at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-12-15 1:29 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99550
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Reduced:
template <typename value_type_>
struct JoinedRange {
struct Iterator
{
template <typename T> using maybe_const_t = T;
using pointer = maybe_const_t<int>;
};
};
JoinedRange<int> a;
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/99550] ICE (segfault) on arm with -std=c++2a
2021-03-11 13:09 [Bug c++/99550] New: ICE (segfault) on arm with -std=c++2a delleyves at gmx dot ch
2021-03-11 15:24 ` [Bug c++/99550] " delleyves at gmx dot ch
2021-12-15 1:29 ` [Bug target/99550] " pinskia at gcc dot gnu.org
@ 2021-12-15 1:31 ` pinskia at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-12-15 1:31 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99550
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |DUPLICATE
Status|UNCONFIRMED |RESOLVED
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Dup of bug 96805.
*** This bug has been marked as a duplicate of bug 96805 ***
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2021-12-15 1:31 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2021-03-11 13:09 [Bug c++/99550] New: ICE (segfault) on arm with -std=c++2a delleyves at gmx dot ch
2021-03-11 15:24 ` [Bug c++/99550] " delleyves at gmx dot ch
2021-12-15 1:29 ` [Bug target/99550] " pinskia at gcc dot gnu.org
2021-12-15 1:31 ` pinskia at gcc dot gnu.org
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