https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98103
Bug ID: 98103
Summary: [10/11 Regression] ICE tree check: expected tree that
contains 'decl minimal' structure, have 'integer_cst'
in cxx_eval_dynamic_cast_fn, at cp/constexpr.c:2003
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: gs...@t-online.de
Target Milestone: ---
Using testfile gcc/testsuite/g++.dg/cpp2a/constexpr-dynamic17.C
This changed between 20191215 and 20200105 :
$ g++-11-20201129 -c constexpr-dynamic17.C -std=gnu++2a -fsanitize=vptr
constexpr-dynamic17.C:20:13: in 'constexpr' expansion of '((D*)(&
d))->D::D()'
constexpr-dynamic17.C:12:35: in 'constexpr' expansion of
'((D*)this)->D::<anonymous>.B::B((&(&((D*)this)->D::<anonymous>)->A::<anonymous>),
(&((D*)this)->D::<anonymous>))'
constexpr-dynamic17.C:20:13: internal compiler error: tree check: expected tree
that contains 'decl minimal' structure, have 'integer_cst' in
cxx_eval_dynamic_cast_fn, at cp/constexpr.c:2003
20 | constexpr D d;
| ^
0x64d1b5 tree_contains_struct_check_failed(tree_node const*,
tree_node_structure_enum, char const*, int, char const*)
../../gcc/tree.c:9984
0x6ebbe3 contains_struct_check(tree_node*, tree_node_structure_enum, char
const*, int, char const*)
../../gcc/tree.h:3445
0x6ebbe3 cxx_eval_dynamic_cast_fn
../../gcc/cp/constexpr.c:2003
0x6ebbe3 cxx_eval_call_expression
../../gcc/cp/constexpr.c:2421
0x6eec61 cxx_eval_constant_expression
../../gcc/cp/constexpr.c:5866
0x6ed3de cxx_eval_constant_expression
../../gcc/cp/constexpr.c:6358
0x6ed3de cxx_eval_constant_expression
../../gcc/cp/constexpr.c:6358
0x6eeb2a cxx_eval_constant_expression
../../gcc/cp/constexpr.c:6305
0x6ed39a cxx_eval_constant_expression
../../gcc/cp/constexpr.c:6176
0x6eebda cxx_eval_constant_expression
../../gcc/cp/constexpr.c:6044
0x6ee1ee cxx_eval_statement_list
../../gcc/cp/constexpr.c:5436
0x6ee1ee cxx_eval_constant_expression
../../gcc/cp/constexpr.c:6502
0x6eea4e cxx_eval_constant_expression
../../gcc/cp/constexpr.c:6537
0x6ee1ee cxx_eval_statement_list
../../gcc/cp/constexpr.c:5436
0x6ee1ee cxx_eval_constant_expression
../../gcc/cp/constexpr.c:6502
0x6eb576 cxx_eval_call_expression
../../gcc/cp/constexpr.c:2687
0x6eec61 cxx_eval_constant_expression
../../gcc/cp/constexpr.c:5866
0x6ed39a cxx_eval_constant_expression
../../gcc/cp/constexpr.c:6176
0x6eebda cxx_eval_constant_expression
../../gcc/cp/constexpr.c:6044
0x6ee1ee cxx_eval_statement_list
../../gcc/cp/constexpr.c:5436
