https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70205
Bug ID: 70205
Summary: ICE on valid code on x86_64-linux-gnu: tree check:
expected tree_binfo, have error_mark in
add_candidates, at cp/call.c:5283
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: su at cs dot ucdavis.edu
Target Milestone: ---
The following valid code causes an ICE when compiled with the current GCC trunk
on x86_64-linux-gnu in both 32-bit and 64-bit modes.
This is a regression from 5.3.x.
$ g++-trunk -v
Using built-in specs.
COLLECT_GCC=g++-trunk
COLLECT_LTO_WRAPPER=/usr/local/gcc-trunk/libexec/gcc/x86_64-pc-linux-gnu/6.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcc-source-trunk/configure --enable-languages=c,c++,lto
--prefix=/usr/local/gcc-trunk --disable-bootstrap
Thread model: posix
gcc version 6.0.0 20160311 (experimental) [trunk revision 234134] (GCC)
$
$ g++-5.3 -c small.cpp
$
$ g++-trunk -c small.cpp
small.cpp: In member function ‘void D::g()’:
small.cpp:19:11: internal compiler error: tree check: expected tree_binfo, have
error_mark in add_candidates, at cp/call.c:5283
D::f ();
^
0xfe10bc tree_check_failed(tree_node const*, char const*, int, char const*,
...)
../../gcc-source-trunk/gcc/tree.c:9643
0x61c634 tree_check
../../gcc-source-trunk/gcc/tree.h:3006
0x61c634 add_candidates
../../gcc-source-trunk/gcc/cp/call.c:5283
0x61ccf6 build_new_method_call_1
../../gcc-source-trunk/gcc/cp/call.c:8284
0x61ccf6 build_new_method_call(tree_node*, tree_node*, vec<tree_node*, va_gc,
vl_embed>**, tree_node*, int, tree_node**, int)
../../gcc-source-trunk/gcc/cp/call.c:8480
0x7bbddc finish_call_expr(tree_node*, vec<tree_node*, va_gc, vl_embed>**, bool,
bool, int)
../../gcc-source-trunk/gcc/cp/semantics.c:2410
0x735a49 cp_parser_postfix_expression
../../gcc-source-trunk/gcc/cp/parser.c:6904
0x73edbc cp_parser_unary_expression
../../gcc-source-trunk/gcc/cp/parser.c:7988
0x73f617 cp_parser_cast_expression
../../gcc-source-trunk/gcc/cp/parser.c:8665
0x73fc15 cp_parser_binary_expression
../../gcc-source-trunk/gcc/cp/parser.c:8767
0x740500 cp_parser_assignment_expression
../../gcc-source-trunk/gcc/cp/parser.c:9055
0x742dd9 cp_parser_expression
../../gcc-source-trunk/gcc/cp/parser.c:9222
0x74354f cp_parser_expression_statement
../../gcc-source-trunk/gcc/cp/parser.c:10683
0x73129b cp_parser_statement
../../gcc-source-trunk/gcc/cp/parser.c:10534
0x731f4c cp_parser_statement_seq_opt
../../gcc-source-trunk/gcc/cp/parser.c:10806
0x73203f cp_parser_compound_statement
../../gcc-source-trunk/gcc/cp/parser.c:10760
0x75087f cp_parser_function_body
../../gcc-source-trunk/gcc/cp/parser.c:20639
0x75087f cp_parser_ctor_initializer_opt_and_function_body
../../gcc-source-trunk/gcc/cp/parser.c:20675
0x751321 cp_parser_function_definition_after_declarator
../../gcc-source-trunk/gcc/cp/parser.c:25337
0x756750 cp_parser_late_parsing_for_member
../../gcc-source-trunk/gcc/cp/parser.c:26177
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
$
-----------------------------------
class A
{
protected:
static void f ();
};
class B : public A
{
};
class C : public A
{
};
class D : public C, public B
{
void g ()
{
D::f ();
}
};
