https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104347
Bug ID: 104347
Summary: internal compiler error- default template arguments -
missing angle brackets
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: dev at gutoehrlein dot eu
Target Milestone: ---
Created attachment 52330
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52330&action=edit
code which crashes the compiler
command to compile:
g++ -o test -std=c++20 -O2 test.cpp
-----
Version of g++: 11.2
OS: Ubuntu (Kernel: 5.13.0)
-----
The code contains a missing "<>" in line 327. Line 328 (comment) contains the
correct code. g++ crashes with an internal compiler error instead of displaying
an error message.
Additional info:
* Can be also reproduced on https://godbolt.org/
* The current VS compiler also produces an internal compiler error.
* Clang 13 parses the file and displays the appropriate error message:
<source>:327:11: error: alias template 'SISpeed' requires template arguments;
argument deduction only allowed for class templates
-----
<source>: In function 'int main(int, char**)':
<source>:327:19: internal compiler error: Segmentation fault
327 | SISpeed v = l / t;
| ^
0x1786229 internal_error(char const*, ...)
???:0
0x7d2840 template_parms_to_args(tree_node*)
???:0
0x7d68ed do_auto_deduction(tree_node*, tree_node*, tree_node*, int,
auto_deduction_context, tree_node*, int)
???:0
0x7002b6 cp_finish_decl(tree_node*, tree_node*, bool, tree_node*, int)
???:0
0x7c47db c_parse_file()
???:0
0x896762 c_common_parse_file()
???:0
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
Compiler returned: 1
