https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84002
Sunil Pandey <skpgkp1 at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |hjl.tools at gmail dot com
--- Comment #1 from Sunil Pandey <skpgkp1 at gmail dot com> ---
I also hit same issue while compiling opencv with gcc 8.
$ cat test_mat.cpp.i
namespace {
template <typename> class g {
public:
typedef double d;
};
template <typename, int, int> class e {};
typedef e<double, 2, 2> f;
class h {
public:
template <typename i, int j, int k> operator e<i, j, k>() const;
};
template <typename i> class c : h {
public:
c(int, int);
template <int j, int k> operator e<typename g<i>::d, j, k>() const;
};
template <typename i>
template <int j, int k>
c<i>::operator e<typename g<i>::d, j, k>() const {
e<typename g<i>::d, j, k> l = h::operator e<typename g<i>::d, j, k>();
}
c<double> a(c<double>(2, 2));
f b(a);
}
$ g++ --version
g++ (GCC) 8.0.1 20180123 (experimental)
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
$ g++ -msse -msse2 -msse3 -O2 -o test_mat.cpp.i.o -c test_mat.cpp.i -w
test_mat.cpp.i: In instantiation of ‘{anonymous}::c<i>::operator
{anonymous}::e<typename {anonymous}::g< <template-parameter-1-1> >::d, j, k>()
const [with int j = 2; int k = 2; i = double; typename {anonymous}::g<
<template-parameter-1-1> >::d = double]’:
test_mat.cpp.i:23:6: required from here
test_mat.cpp.i:20:33: internal compiler error: in tsubst_baselink, at
cp/pt.c:14451
e<typename g<i>::d, j, k> l = h::operator e<typename g<i>::d, j, k>();
^
0x62aaa1 tsubst_baselink
../../gcc-main.3UZE/gcc/cp/pt.c:14451
0x936dfb tsubst_copy_and_build(tree_node*, tree_node*, int, tree_node*, bool,
bool)
../../gcc-main.3UZE/gcc/cp/pt.c:17996
0x93583f tsubst_copy_and_build(tree_node*, tree_node*, int, tree_node*, bool,
bool)
../../gcc-main.3UZE/gcc/cp/pt.c:17604
0x943269 tsubst_copy_and_build(tree_node*, tree_node*, int, tree_node*, bool,
bool)
../../gcc-main.3UZE/gcc/cp/pt.c:17041
0x943269 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
../../gcc-main.3UZE/gcc/cp/pt.c:16779
0x945c82 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
../../gcc-main.3UZE/gcc/cp/pt.c:14645
0x945c82 tsubst_init
../../gcc-main.3UZE/gcc/cp/pt.c:14649
0x944b84 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
../../gcc-main.3UZE/gcc/cp/pt.c:16109
0x940461 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
../../gcc-main.3UZE/gcc/cp/pt.c:16263
0x93f6f8 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
../../gcc-main.3UZE/gcc/cp/pt.c:15971
0x93f6f8 instantiate_decl(tree_node*, bool, bool)
../../gcc-main.3UZE/gcc/cp/pt.c:23329
0x969ccb instantiate_pending_templates(int)
../../gcc-main.3UZE/gcc/cp/pt.c:23445
0x88c80b c_parse_final_cleanups()
../../gcc-main.3UZE/gcc/cp/decl2.c:4705
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.
GCC 7 works fine.
$ g++ --version
g++ (GCC) 7.2.1 20180123
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
$ g++ -msse -msse2 -msse3 -O2 -o test_mat.cpp.i.o -c test_mat.cpp.i -w
$ echo $?
0
