[Bug c++/99478] New: ICE when decltype lambda in template list

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* [Bug c++/99478] New: ICE when decltype lambda in template list
@ 2021-03-09  7:29 hewillk at gmail dot com
  2021-03-09 15:00 ` [Bug c++/99478] [9/10/11 Regression] " mpolacek at gcc dot gnu.org
                   ` (7 more replies)
  0 siblings, 8 replies; 9+ messages in thread
From: hewillk at gmail dot com @ 2021-03-09  7:29 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99478

            Bug ID: 99478
           Summary: ICE when decltype lambda in template list
           Product: gcc
           Version: 9.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hewillk at gmail dot com
  Target Milestone: ---

The following code will trigger ICE on gcc-9.1 ~ gcc-trunk with "-std=c++2a"
mode:

template <decltype ([] {})> auto f() {}

int main() { f<{}>(); }

(godbolt: https://godbolt.org/z/dEP5PT)

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug c++/99478] [9/10/11 Regression] ICE when decltype lambda in template list
  2021-03-09  7:29 [Bug c++/99478] New: ICE when decltype lambda in template list hewillk at gmail dot com
@ 2021-03-09 15:00 ` mpolacek at gcc dot gnu.org
  2021-04-14  1:31 ` jason at gcc dot gnu.org
                   ` (6 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2021-03-09 15:00 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99478

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice-on-invalid-code
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW
                 CC|                            |mpolacek at gcc dot gnu.org
            Summary|ICE when decltype lambda in |[9/10/11 Regression] ICE
                   |template list               |when decltype lambda in
                   |                            |template list
           Priority|P3                          |P2
   Target Milestone|---                         |9.4
   Last reconfirmed|                            |2021-03-09

--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Started with r269972.  Invalid, I think.

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug c++/99478] [9/10/11 Regression] ICE when decltype lambda in template list
  2021-03-09  7:29 [Bug c++/99478] New: ICE when decltype lambda in template list hewillk at gmail dot com
  2021-03-09 15:00 ` [Bug c++/99478] [9/10/11 Regression] " mpolacek at gcc dot gnu.org
@ 2021-04-14  1:31 ` jason at gcc dot gnu.org
  2021-04-14  4:34 ` cvs-commit at gcc dot gnu.org
                   ` (5 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: jason at gcc dot gnu.org @ 2021-04-14  1:31 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99478

Jason Merrill <jason at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jason at gcc dot gnu.org
           Assignee|unassigned at gcc dot gnu.org      |jason at gcc dot gnu.org
             Status|NEW                         |ASSIGNED

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug c++/99478] [9/10/11 Regression] ICE when decltype lambda in template list
  2021-03-09  7:29 [Bug c++/99478] New: ICE when decltype lambda in template list hewillk at gmail dot com
  2021-03-09 15:00 ` [Bug c++/99478] [9/10/11 Regression] " mpolacek at gcc dot gnu.org
  2021-04-14  1:31 ` jason at gcc dot gnu.org
@ 2021-04-14  4:34 ` cvs-commit at gcc dot gnu.org
  2021-04-14  4:34 ` [Bug c++/99478] [9/10 " jason at gcc dot gnu.org
                   ` (4 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-04-14  4:34 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99478

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jason Merrill <jason@gcc.gnu.org>:

https://gcc.gnu.org/g:e1666ebd9ad31dbd8b9b933c883bdd882cfd1522

commit r11-8166-ge1666ebd9ad31dbd8b9b933c883bdd882cfd1522
Author: Jason Merrill <jason@redhat.com>
Date:   Tue Apr 13 22:28:32 2021 -0400

    c++: lambda in non-type template parm type [PR99478]

    In this testcase, the non-type template parameter has the type of a
    lambda-expression.  This makes no sense because a lambda in template
context
    is specified to be distinct between different specializations of the
    template, even if the lambda is non-dependent, but here which
specialization
    we are dealing with depends on which lambda we have, and vice versa.

    gcc/cp/ChangeLog:

            PR c++/99478
            * parser.c (cp_parser_lambda_expression): Reject lambda
            in template parameter type.

    gcc/testsuite/ChangeLog:

            PR c++/99478
            * g++.dg/cpp2a/lambda-uneval14.C: New test.

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug c++/99478] [9/10 Regression] ICE when decltype lambda in template list
  2021-03-09  7:29 [Bug c++/99478] New: ICE when decltype lambda in template list hewillk at gmail dot com
                   ` (2 preceding siblings ...)
  2021-04-14  4:34 ` cvs-commit at gcc dot gnu.org
@ 2021-04-14  4:34 ` jason at gcc dot gnu.org
  2021-06-01  8:19 ` rguenth at gcc dot gnu.org
                   ` (3 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: jason at gcc dot gnu.org @ 2021-04-14  4:34 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99478

Jason Merrill <jason at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[9/10/11 Regression] ICE    |[9/10 Regression] ICE when
                   |when decltype lambda in     |decltype lambda in template
                   |template list               |list

--- Comment #3 from Jason Merrill <jason at gcc dot gnu.org> ---
Fixed for 11 so far.

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug c++/99478] [9/10 Regression] ICE when decltype lambda in template list
  2021-03-09  7:29 [Bug c++/99478] New: ICE when decltype lambda in template list hewillk at gmail dot com
                   ` (3 preceding siblings ...)
  2021-04-14  4:34 ` [Bug c++/99478] [9/10 " jason at gcc dot gnu.org
@ 2021-06-01  8:19 ` rguenth at gcc dot gnu.org
  2022-05-27  9:44 ` [Bug c++/99478] [10 " rguenth at gcc dot gnu.org
                   ` (2 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2021-06-01  8:19 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99478

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|9.4                         |9.5

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
GCC 9.4 is being released, retargeting bugs to GCC 9.5.

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug c++/99478] [10 Regression] ICE when decltype lambda in template list
  2021-03-09  7:29 [Bug c++/99478] New: ICE when decltype lambda in template list hewillk at gmail dot com
                   ` (4 preceding siblings ...)
  2021-06-01  8:19 ` rguenth at gcc dot gnu.org
@ 2022-05-27  9:44 ` rguenth at gcc dot gnu.org
  2022-06-28 10:43 ` jakub at gcc dot gnu.org
  2023-07-07  9:30 ` rguenth at gcc dot gnu.org
  7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2022-05-27  9:44 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99478

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|9.5                         |10.4

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
GCC 9 branch is being closed

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug c++/99478] [10 Regression] ICE when decltype lambda in template list
  2021-03-09  7:29 [Bug c++/99478] New: ICE when decltype lambda in template list hewillk at gmail dot com
                   ` (5 preceding siblings ...)
  2022-05-27  9:44 ` [Bug c++/99478] [10 " rguenth at gcc dot gnu.org
@ 2022-06-28 10:43 ` jakub at gcc dot gnu.org
  2023-07-07  9:30 ` rguenth at gcc dot gnu.org
  7 siblings, 0 replies; 9+ messages in thread
From: jakub at gcc dot gnu.org @ 2022-06-28 10:43 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99478

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|10.4                        |10.5

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 10.4 is being released, retargeting bugs to GCC 10.5.

^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug c++/99478] [10 Regression] ICE when decltype lambda in template list
  2021-03-09  7:29 [Bug c++/99478] New: ICE when decltype lambda in template list hewillk at gmail dot com
                   ` (6 preceding siblings ...)
  2022-06-28 10:43 ` jakub at gcc dot gnu.org
@ 2023-07-07  9:30 ` rguenth at gcc dot gnu.org
  7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2023-07-07  9:30 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99478

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
   Target Milestone|10.5                        |11.0
      Known to fail|                            |10.5.0
             Status|ASSIGNED                    |RESOLVED

--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed in GCC 11.

^ permalink raw reply	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2023-07-07  9:30 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-03-09  7:29 [Bug c++/99478] New: ICE when decltype lambda in template list hewillk at gmail dot com
2021-03-09 15:00 ` [Bug c++/99478] [9/10/11 Regression] " mpolacek at gcc dot gnu.org
2021-04-14  1:31 ` jason at gcc dot gnu.org
2021-04-14  4:34 ` cvs-commit at gcc dot gnu.org
2021-04-14  4:34 ` [Bug c++/99478] [9/10 " jason at gcc dot gnu.org
2021-06-01  8:19 ` rguenth at gcc dot gnu.org
2022-05-27  9:44 ` [Bug c++/99478] [10 " rguenth at gcc dot gnu.org
2022-06-28 10:43 ` jakub at gcc dot gnu.org
2023-07-07  9:30 ` rguenth at gcc dot gnu.org

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