https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117463
Bug ID: 117463
Summary: internal compiler error: Segmentation fault at
is_nondependent_constant_expression(tree_node*)
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: yihan4845 at gmail dot com
Target Milestone: ---
Compiler Explorer: https://godbolt.org/z/Gcq31jrGG
The following program:
```cpp
struct S {};
void *operator new[] (unsigned long, void void *volatile p) { return p; }
S *fun(void *p) {
return new(p) S[10];
}
```
will trigger segmentation fault for gcc trunk.
Stack dump:
```
0x28849d5 diagnostic_context::diagnostic_impl(rich_location*,
diagnostic_metadata const*, diagnostic_option_id, char const*, __va_list_tag
(*) [1], diagnostic_t)
???:0
0x289b3c5 internal_error(char const*, ...)
???:0
0xb09b40 is_nondependent_constant_expression(tree_node*)
???:0
0xb0ae74 maybe_constant_value(tree_node*, tree_node*, mce_value)
???:0
0xbaeb03 fold_for_warn(tree_node*)
???:0
0xd76308 check_return_expr(tree_node*, bool*, bool*)
???:0
0xd19818 finish_return_stmt(tree_node*)
???:0
0xca0b0a c_parse_file()
???:0
0xdfa809 c_common_parse_file()
???:0
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
Compiler returned: 1
```
