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* [Bug c++/109823] New: Internal segmentation fault for trailing return with doubly expanded variadic pack
@ 2023-05-12 7:47 rafel.perello at upc dot edu
2023-05-12 7:58 ` [Bug c++/109823] ICE with trailing return of decltype of a fold expression in nested generic variadic lambda pinskia at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: rafel.perello at upc dot edu @ 2023-05-12 7:47 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109823
Bug ID: 109823
Summary: Internal segmentation fault for trailing return with
doubly expanded variadic pack
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: rafel.perello at upc dot edu
Target Milestone: ---
Created attachment 55062
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55062&action=edit
Code
The following code makes the compiler crash if the trailing return with
decltype is added. If the lambda is defined without trailing return, the
program works as expected.
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug c++/109823] ICE with trailing return of decltype of a fold expression in nested generic variadic lambda 2023-05-12 7:47 [Bug c++/109823] New: Internal segmentation fault for trailing return with doubly expanded variadic pack rafel.perello at upc dot edu @ 2023-05-12 7:58 ` pinskia at gcc dot gnu.org 2023-05-12 7:59 ` [Bug c++/109823] [10/11/12/13/14 Regression] " pinskia at gcc dot gnu.org ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: pinskia at gcc dot gnu.org @ 2023-05-12 7:58 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109823 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Summary|Internal segmentation fault |ICE with trailing return of |for trailing return with |decltype of a fold |doubly expanded variadic |expression in nested |pack |generic variadic lambda Ever confirmed|0 |1 Last reconfirmed| |2023-05-12 Status|UNCONFIRMED |NEW --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Reduced testcase: int f(int){return 0;} int main() { auto tensor_product = [](const auto &...arguments) { return [&](auto &&... inputs) -> decltype((... * arguments(inputs))) { return 0; }; }; tensor_product(f)(1); } ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/109823] [10/11/12/13/14 Regression] ICE with trailing return of decltype of a fold expression in nested generic variadic lambda 2023-05-12 7:47 [Bug c++/109823] New: Internal segmentation fault for trailing return with doubly expanded variadic pack rafel.perello at upc dot edu 2023-05-12 7:58 ` [Bug c++/109823] ICE with trailing return of decltype of a fold expression in nested generic variadic lambda pinskia at gcc dot gnu.org @ 2023-05-12 7:59 ` pinskia at gcc dot gnu.org 2023-07-07 10:45 ` [Bug c++/109823] [11/12/13/14 " rguenth at gcc dot gnu.org ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: pinskia at gcc dot gnu.org @ 2023-05-12 7:59 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109823 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|--- |10.5 Known to work| |7.5.0 Summary|ICE with trailing return of |[10/11/12/13/14 Regression] |decltype of a fold |ICE with trailing return of |expression in nested |decltype of a fold |generic variadic lambda |expression in nested | |generic variadic lambda Known to fail| |8.1.0 --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- My testcase is a regression from GCC 7.5.0. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/109823] [11/12/13/14 Regression] ICE with trailing return of decltype of a fold expression in nested generic variadic lambda 2023-05-12 7:47 [Bug c++/109823] New: Internal segmentation fault for trailing return with doubly expanded variadic pack rafel.perello at upc dot edu 2023-05-12 7:58 ` [Bug c++/109823] ICE with trailing return of decltype of a fold expression in nested generic variadic lambda pinskia at gcc dot gnu.org 2023-05-12 7:59 ` [Bug c++/109823] [10/11/12/13/14 Regression] " pinskia at gcc dot gnu.org @ 2023-07-07 10:45 ` rguenth at gcc dot gnu.org 2024-01-10 17:30 ` jamborm at gcc dot gnu.org 2024-01-12 11:57 ` rguenth at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: rguenth at gcc dot gnu.org @ 2023-07-07 10:45 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109823 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|10.5 |11.5 --- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> --- GCC 10 branch is being closed. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/109823] [11/12/13/14 Regression] ICE with trailing return of decltype of a fold expression in nested generic variadic lambda 2023-05-12 7:47 [Bug c++/109823] New: Internal segmentation fault for trailing return with doubly expanded variadic pack rafel.perello at upc dot edu ` (2 preceding siblings ...) 2023-07-07 10:45 ` [Bug c++/109823] [11/12/13/14 " rguenth at gcc dot gnu.org @ 2024-01-10 17:30 ` jamborm at gcc dot gnu.org 2024-01-12 11:57 ` rguenth at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: jamborm at gcc dot gnu.org @ 2024-01-10 17:30 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109823 Martin Jambor <jamborm at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jason at gcc dot gnu.org Keywords|needs-bisection | --- Comment #4 from Martin Jambor <jamborm at gcc dot gnu.org> --- The testcase from comment #1 started ICEing with commit dc58fa9f3142097b (Jason Merrill: PR c++/84036 - ICE with variadic capture). ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/109823] [11/12/13/14 Regression] ICE with trailing return of decltype of a fold expression in nested generic variadic lambda 2023-05-12 7:47 [Bug c++/109823] New: Internal segmentation fault for trailing return with doubly expanded variadic pack rafel.perello at upc dot edu ` (3 preceding siblings ...) 2024-01-10 17:30 ` jamborm at gcc dot gnu.org @ 2024-01-12 11:57 ` rguenth at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: rguenth at gcc dot gnu.org @ 2024-01-12 11:57 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109823 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P3 |P2 ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2024-01-12 11:57 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2023-05-12 7:47 [Bug c++/109823] New: Internal segmentation fault for trailing return with doubly expanded variadic pack rafel.perello at upc dot edu 2023-05-12 7:58 ` [Bug c++/109823] ICE with trailing return of decltype of a fold expression in nested generic variadic lambda pinskia at gcc dot gnu.org 2023-05-12 7:59 ` [Bug c++/109823] [10/11/12/13/14 Regression] " pinskia at gcc dot gnu.org 2023-07-07 10:45 ` [Bug c++/109823] [11/12/13/14 " rguenth at gcc dot gnu.org 2024-01-10 17:30 ` jamborm at gcc dot gnu.org 2024-01-12 11:57 ` rguenth at gcc dot gnu.org
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