https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102470
Arthur O'Dwyer <arthur.j.odwyer at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |arthur.j.odwyer at gmail dot
com
--- Comment #2 from Arthur O'Dwyer <arthur.j.odwyer at gmail dot com> ---
Segfaults starting in GCC 9.1 (the first release with class NTTPs) until 12.3,
succeeds fine in GCC 13.1 and later.
Reduced: https://compiler-explorer.com/z/Kea5ar6MM
struct MA { int x; };
template<class> constexpr int mao = 1;
template<int> struct AST {};
template<MA ma> using AS = AST<ma.x>;
template<class> using ASF = AS<mao<int>>;
<source>: In substitution of 'template<MA ma> using AS = AST<((const MA)ma).x>
[with MA ma = mao<int>]':
<source>:5:39: required from here
<source>:4:32: internal compiler error: Segmentation fault
4 | template<MA ma> using AS = AST<ma.x>;
| ^~
0x1bbabfe internal_error(char const*, ...)
0x109f844 strip_array_types(tree_node*)
0x8d3f2c cp_type_quals(tree_node const*)
0x88e40f tsubst_template_args(tree_node*, tree_node*, int, tree_node*)
0x87b764 tsubst(tree_node*, tree_node*, int, tree_node*)
[...]
