[Bug c++/98579] New: ICE: in output_constructor_regular_field, at varasm.c:5491

[Bug c++/98579] New: ICE: in output_constructor_regular_field, at varasm.c:5491

[sguelton at redhat dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98579

            Bug ID: 98579
           Summary: ICE:  in output_constructor_regular_field, at
                    varasm.c:5491
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: sguelton at redhat dot com
  Target Milestone: ---

The following code 

```
#include <tuple>
struct ComplexPart;

template <typename PA, typename PB> struct FollowParser {
  constexpr FollowParser(PA pa, PB pb) : pa_{pa}, pb_{pb} {}
  const PA pa_;
  const PB pb_;
};
template <typename PA, typename PB>
inline constexpr FollowParser<PA, PB> operator/(PA pa, PB pb) {
  return FollowParser<PA, PB>{pa, pb};
}
template <typename... PARSER> struct ApplyConstructor {
  constexpr ApplyConstructor(PARSER... p) : parsers_{p...} {}
  const std::tuple<PARSER...> parsers_;
};
template <typename... PARSER>
constexpr ApplyConstructor<PARSER...> construct(PARSER... p) {
  return ApplyConstructor<PARSER...>{p...};
}
template <typename A> struct Parser {
  constexpr Parser() {}
};
auto tmp = construct(Parser<ComplexPart>{} / ",", Parser<ComplexPart>{});
```

compiled with

```
g++ -std=c++17 -c F.cpp
```

raises an ICE. Reproducer on godbolt, using trunk gcc:
https://gcc.godbolt.org/z/M3r15z

Possible duplicate: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98463
but the example look different enough.

[Bug c++/98579] [11 Regression] ICE: in output_constructor_regular_field, at varasm.c:5491 since r11-2720-g91e6226f880b0482

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98579

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
            Summary|ICE:  in                    |[11 Regression] ICE:  in
                   |output_constructor_regular_ |output_constructor_regular_
                   |field, at varasm.c:5491     |field, at varasm.c:5491
                   |                            |since
                   |                            |r11-2720-g91e6226f880b0482
      Known to fail|                            |11.0
           See Also|                            |https://gcc.gnu.org/bugzill
                   |                            |a/show_bug.cgi?id=98463
      Known to work|                            |10.2.0
     Ever confirmed|0                           |1
                 CC|                            |marxin at gcc dot gnu.org
   Last reconfirmed|                            |2021-01-07

--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
It also started with r11-2720-g91e6226f880b0482, so likely a dup.

[Bug c++/98579] [11 Regression] ICE: in output_constructor_regular_field, at varasm.c:5491 since r11-2720-g91e6226f880b0482

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98579

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |11.0
            Version|unknown                     |11.0

[Bug c++/98579] [11 Regression] ICE: in output_constructor_regular_field, at varasm.c:5491 since r11-2720-g91e6226f880b0482

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98579

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1

[Bug c++/98579] [11 Regression] ICE: in output_constructor_regular_field, at varasm.c:5491 since r11-2720-g91e6226f880b0482

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98579

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |DUPLICATE

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
dup

*** This bug has been marked as a duplicate of bug 98463 ***