https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84927
Bug ID: 84927
Summary: [7/8 Regressiion] ICE with NSDMI and reference
Product: gcc
Version: 8.0.1
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: reichelt at gcc dot gnu.org
Target Milestone: ---
The following valid code snippet triggers an ICE since GCC 7.1.0:
==================
struct A
{
int& r;
int i = r;
};
void foo()
{
int j;
A a = A{j};
}
==================
bug.cc: In function 'void foo()':
bug.cc:16:12: internal compiler error: non-constant element in constant
CONSTRUCTOR
A a = A{j};
^
0x11445b0 verify_constructor_flags(tree_node*)
../../gcc/gcc/tree.c:1987
0x8578e7 cxx_eval_constant_expression
../../gcc/gcc/cp/constexpr.c:4535
0x8584d2 cxx_eval_constant_expression
../../gcc/gcc/cp/constexpr.c:4697
0x857057 cxx_eval_indirect_ref
../../gcc/gcc/cp/constexpr.c:3329
0x857057 cxx_eval_constant_expression
../../gcc/gcc/cp/constexpr.c:4334
0x858716 cxx_eval_component_reference
../../gcc/gcc/cp/constexpr.c:2494
0x858716 cxx_eval_constant_expression
../../gcc/gcc/cp/constexpr.c:4494
0x858831 cxx_eval_indirect_ref
../../gcc/gcc/cp/constexpr.c:3285
0x858831 cxx_eval_constant_expression
../../gcc/gcc/cp/constexpr.c:4334
0x857b03 cxx_eval_bare_aggregate
../../gcc/gcc/cp/constexpr.c:2845
0x857b03 cxx_eval_constant_expression
../../gcc/gcc/cp/constexpr.c:4541
0x85bee7 cxx_eval_outermost_constant_expr
../../gcc/gcc/cp/constexpr.c:4835
0x85eb96 maybe_constant_value(tree_node*, tree_node*)
../../gcc/gcc/cp/constexpr.c:5053
0x86e4c1 cp_fully_fold(tree_node*)
../../gcc/gcc/cp/cp-gimplify.c:2071
0x9f3526 store_init_value(tree_node*, tree_node*, vec<tree_node*, va_gc,
vl_embed>**, int)
../../gcc/gcc/cp/typeck2.c:848
0x88718a check_initializer
../../gcc/gcc/cp/decl.c:6467
0x89f38c cp_finish_decl(tree_node*, tree_node*, bool, tree_node*, int)
../../gcc/gcc/cp/decl.c:7121
0x93b893 cp_parser_init_declarator
../../gcc/gcc/cp/parser.c:19723
0x942cc8 cp_parser_simple_declaration
../../gcc/gcc/cp/parser.c:13057
0x943ad8 cp_parser_block_declaration
../../gcc/gcc/cp/parser.c:12882
Please submit a full bug report, [etc.]
