https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86546
Bug ID: 86546
Summary: ICE on invalid: tree_class_check_failed()
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: dimhen at gmail dot com
Target Milestone: ---
r255090 FAIL
r262747 FAIL
$ cat x.ii
class a b;
c() {
switch ()
case b
$ /usr/local/gcc_current/bin/g++ -fpreprocessed -std=c++98 x.ii
x.ii:1:9: error: aggregate ‘a b’ has incomplete type and cannot be defined
class a b;
^
x.ii:2:3: error: ISO C++ forbids declaration of ‘c’ with no type [-fpermissive]
c() {
^
x.ii: In function ‘int c()’:
x.ii:3:11: error: expected primary-expression before ‘)’ token
switch ()
^
x.ii:4:8: internal compiler error: tree check: expected class ‘type’, have
‘exceptional’ (error_mark) in cxx_eval_constant_expression, at
cp/constexpr.c:4170
case b
^
0x7cfc19 tree_class_check_failed(tree_node const*, tree_code_class, char
const*, int, char const*)
/home/dimhen/src/gcc_current/gcc/tree.c:9401
0x5f561f tree_class_check(tree_node*, tree_code_class, char const*, int, char
const*)
/home/dimhen/src/gcc_current/gcc/tree.h:3240
0x5f561f cxx_eval_constant_expression
/home/dimhen/src/gcc_current/gcc/cp/constexpr.c:4170
0x9603dd cxx_eval_outermost_constant_expr
/home/dimhen/src/gcc_current/gcc/cp/constexpr.c:4931
0x986ea5 finish_case_label(unsigned int, tree_node*, tree_node*)
/home/dimhen/src/gcc_current/gcc/cp/decl.c:3602
0xa1e3c0 cp_parser_label_for_labeled_statement
/home/dimhen/src/gcc_current/gcc/cp/parser.c:11062
0xa234a4 cp_parser_statement
/home/dimhen/src/gcc_current/gcc/cp/parser.c:10896
0xa452b7 cp_parser_implicitly_scoped_statement
/home/dimhen/src/gcc_current/gcc/cp/parser.c:12661
0xa23aab cp_parser_selection_statement
/home/dimhen/src/gcc_current/gcc/cp/parser.c:11583
0xa23aab cp_parser_statement
/home/dimhen/src/gcc_current/gcc/cp/parser.c:10834
0xa24a08 cp_parser_statement_seq_opt
/home/dimhen/src/gcc_current/gcc/cp/parser.c:11292
0xa24ae7 cp_parser_compound_statement
/home/dimhen/src/gcc_current/gcc/cp/parser.c:11246
0xa3ad80 cp_parser_function_body
/home/dimhen/src/gcc_current/gcc/cp/parser.c:21921
0xa3ad80 cp_parser_ctor_initializer_opt_and_function_body
/home/dimhen/src/gcc_current/gcc/cp/parser.c:21958
0xa3b5f0 cp_parser_function_definition_after_declarator
/home/dimhen/src/gcc_current/gcc/cp/parser.c:26974
0xa3c315 cp_parser_function_definition_from_specifiers_and_declarator
/home/dimhen/src/gcc_current/gcc/cp/parser.c:26890
0xa3c315 cp_parser_init_declarator
/home/dimhen/src/gcc_current/gcc/cp/parser.c:19646
0xa4317a cp_parser_simple_declaration
/home/dimhen/src/gcc_current/gcc/cp/parser.c:13180
0xa481d2 cp_parser_declaration
/home/dimhen/src/gcc_current/gcc/cp/parser.c:12903
0xa485cd cp_parser_declaration_seq_opt
/home/dimhen/src/gcc_current/gcc/cp/parser.c:12779
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.
$ /usr/local/gcc_current/bin/g++ -v
Using built-in specs.
COLLECT_GCC=/usr/local/gcc_current/bin/g++
COLLECT_LTO_WRAPPER=/usr/local/gcc_current/libexec/gcc/x86_64-pc-linux-gnu/9.0.0/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none
Target: x86_64-pc-linux-gnu
Configured with: /home/dimhen/src/gcc_current/configure
--prefix=/usr/local/gcc_current --enable-checking=yes,df,fold,rtl,extra
--enable-languages=c,c++,lto --disable-multilib --enable-shared
--enable-threads=posix --enable-__cxa_atexit --disable-libunwind-exceptions
--enable-gnu-unique-object --enable-linker-build-id
--with-linker-hash-style=gnu --enable-plugin --enable-initfini-array --with-isl
--enable-libmpx --enable-offload-targets=nvptx-none --without-cuda-driver
--enable-gnu-indirect-function --with-tune=native
Thread model: posix
gcc version 9.0.0 20180716 (experimental) [trunk revision 262747] (GCC)
