https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120821
Bug ID: 120821
Summary: ICE: in synthesize_implicit_template_parm, at
cp/parser.cc:54331
Product: gcc
Version: 16.0
Status: UNCONFIRMED
Keywords: error-recovery, 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: ---
The following code starts to bailing out since gcc-6.1:
https://godbolt.org/z/5bxP53fYo
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
struct SS {
static int xx;
void foo(struct { auto qq() { return xx; }; } x);
};
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Stack Dump message on the trunk:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<source>:3:19: error: types may not be defined in parameter types
3 | void foo(struct { auto qq() { return xx; }; } x);
| ^
<source>:3:49: internal compiler error: in synthesize_implicit_template_parm,
at cp/parser.cc:54331
3 | void foo(struct { auto qq() { return xx; }; } x);
| ^
0x2828ff5 diagnostic_context::diagnostic_impl(rich_location*,
diagnostic_metadata const*, diagnostic_option_id, char const*, __va_list_tag
(*) [1], diagnostic_t)
???:0
0x284a786 internal_error(char const*, ...)
???:0
0xae0b00 fancy_abort(char const*, int, char const*)
???:0
0xd08033 c_parse_file()
???:0
0xe6fb19 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.
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