https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120133
Bug ID: 120133
Summary: internal compiler error: Segmentation fault signal
terminated program cc1plus
Product: gcc
Version: 16.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: ldalessandro at gmail dot com
Target Milestone: ---
Created attachment 61337
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61337&action=edit
test case
I encountered this segfault while trying to reduce a different ICE with cvise.
template <typename _I1, typename = _I1>
concept indirectly_swappable = ;
iter_swap() (indirectly_swappable<
Compile with g++ -std=gnu20.
<source>:2:32: error: expected primary-expression before ';' token
2 | concept indirectly_swappable = ;
| ^
<source>:3:25: error: expected 'auto' or 'decltype(auto)' after
'indirectly_swappable'
3 | iter_swap() (indirectly_swappable<
| ^~~~~~~~~~~~~~~~~~~~
g++: internal compiler error: Segmentation fault signal terminated program
cc1plus
Live: https://godbolt.org/z/nrhKEcexx [May 6th, 2025]
