https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66281
Bug ID: 66281
Summary: [C++14][Variable templates] internal compiler error:
in tsubst, at cp/pt.c:12022
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: ldionne.2 at gmail dot com
Target Milestone: ---
Hi,
The following code causes an ICE on GCC trunk (couple of weeks old):
------------------------------------------------------------------------
template <typename ...> auto f() { return 1; }
template <char>
auto variable_template2 = f();
template <char c>
auto variable_template1 = variable_template2<c>;
template int variable_template1<'c'>;
------------------------------------------------------------------------
Sample command line (lines trimmed):
------------------------------------------------------------------------
› ~/code/gcc5/bin/g++ --version
g++ (GCC) 6.0.0 20150423 (experimental)
Copyright (C) 2015 Free Software Foundation, Inc.
› ~/code/gcc5/bin/g++ -std=c++1y ~/Desktop/bug.cpp
~/Desktop/bug.cpp: In instantiation of ‘auto variable_template1<'c'>’:
~/Desktop/bug.cpp:9:14: required from here
~/Desktop/bug.cpp:4:6: internal compiler error: in tsubst, at cp/pt.c:11973
auto variable_template2 = f();
^
~/Desktop/bug.cpp:4:6: internal compiler error: Abort trap: 6
g++: internal compiler error: Abort trap: 6 (program cc1plus)
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
------------------------------------------------------------------------
Regards,
Louis Dionne
