https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120668
Bug ID: 120668
Summary: ICE: Segmentation fault with invalid array size inside
template function
Product: gcc
Version: 16.0
Status: UNCONFIRMED
Keywords: ice-on-invalid-code
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: rush102333 at gmail dot com
Target Milestone: ---
Simplified test:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
template<typename T>
void
test_callnew()
{
new int[0.2];
}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Stack Dump:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<source>: In function 'void test_callnew()':
<source>:5:11: error: size in array new must have integral type
[-Wtemplate-body]
5 | new int[0.2];
| ^~~
<source>:5:14: internal compiler error: in tsubst_expr, at cp/pt.cc:21001
5 | new int[0.2];
| ^
0x2833015 diagnostic_context::diagnostic_impl(rich_location*,
diagnostic_metadata const*, diagnostic_option_id, char const*, __va_list_tag
(*) [1], diagnostic_t)
???:0
0x28547a6 internal_error(char const*, ...)
???:0
0xae00bc fancy_abort(char const*, int, char const*)
???:0
0xc12d40 build_new(unsigned long, vec<tree_node*, va_gc, vl_embed>**,
tree_node*, tree_node*, vec<tree_node*, va_gc, vl_embed>**, int, int)
???:0
0xd05f53 c_parse_file()
???:0
0xe6db59 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.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Please see https://godbolt.org/z/Pxnnj1TEb
