https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89405
David Malcolm <dmalcolm at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |dmalcolm at gcc dot gnu.org
--- Comment #3 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
-fno-weak: "This option exists only for testing, and should not be used by
end-users"
Failing assertion:
2957 /* Any code that creates entities with TREE_PUBLIC cleared should
2958 also set DECL_INTERFACE_KNOWN. */
2959 gcc_assert (TREE_PUBLIC (decl));
on this decl:
(gdb) call debug_tree (decl)
<var_decl 0x7ffff1a657e0 value
type <boolean_type 0x7ffff1a72888 bool readonly unsigned type_6 QI
size <integer_cst 0x7ffff18adf18 constant 8>
unit-size <integer_cst 0x7ffff18adf30 constant 1>
align:8 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type
0x7ffff1a72888 precision:1 min <integer_cst 0x7ffff18cf180 0> max <integer_cst
0x7ffff18cf1b0 1>>
readonly constant used static tree_1 tree_2 tree_3 unsigned nonlocal
in_system_header read decl_1 QI
../x86_64-pc-linux-gnu/libstdc++-v3/include/type_traits:59:45 size <integer_cst
0x7ffff18adf18 8> unit-size <integer_cst 0x7ffff18adf30 1>
align:8 warn_if_not_align:0 context <record_type 0x7ffff1a6ee70
integral_constant> initial <integer_cst 0x7ffff18cf180 0>
template-info 0x7ffff1a69ba0 chain <function_decl 0x7ffff1a6d500 __conv_op
>>
(gdb) call inform (decl.decl_minimal.locus, "")
In file included from
../x86_64-pc-linux-gnu/libstdc++-v3/include/bits/move.h:55,
from
../x86_64-pc-linux-gnu/libstdc++-v3/include/bits/nested_exception.h:40,
from ../../src/libstdc++-v3/libsupc++/exception:144,
from ../../src/libstdc++-v3/libsupc++/new:40,
from /tmp/test.cc:1:
../x86_64-pc-linux-gnu/libstdc++-v3/include/type_traits: At global scope:
../x86_64-pc-linux-gnu/libstdc++-v3/include/type_traits:59:45: note:
59 | static constexpr _Tp value = __v;
| ^~~~~
within:
/// integral_constant
template<typename _Tp, _Tp __v>
struct integral_constant
{
static constexpr _Tp value = __v;
The flag gets cleared here in maybe_commonize_var in the "else" suite of an "if
(flag_weak)":
5630 /* While for initialized variables, we must use internal
5631 linkage -- which means that multiple copies will not
5632 be merged. */
5633 TREE_PUBLIC (decl) = 0;
5634 DECL_COMMON (decl) = 0;
