https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79414
Bug ID: 79414
Summary: internal compiler error after "error: expected
unqualified-id at end of input"
Product: gcc
Version: 7.0.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: jussi.judin at ericsson dot com
Target Milestone: ---
GCC 7.0.1 (git commit 7458afd6b35c4851d146f058435ba3dd6215db44) segmentation
faults on following code after "error: expected unqualified-id at end of
input". I encountered this while applying C-Reduce to another type of crash:
class x0;
template <x1> x2() {
x0 x3 = x3.
If I try to compile this with "gcc-bin/bin/g++ tst.cc" command, it will result
in following output:
tst.cc:2:11: error: ‘x1’ has not been declared
template <x1> x2() {
^~
tst.cc:2:18: error: ISO C++ forbids declaration of ‘x2’ with no type
[-fpermissive]
template <x1> x2() {
^
tst.cc: In function ‘int x2()’:
tst.cc:3:4: warning: ‘x3’ has incomplete type
x0 x3 = x3.
^~
tst.cc:1:7: note: forward declaration of ‘class x0’
class x0;
^~
tst.cc:3:11: error: expected unqualified-id at end of input
x0 x3 = x3.
^
tst.cc:3:11: internal compiler error: Segmentation fault
0xd27c4f crash_signal
../../gcc/gcc/toplev.c:333
0x60a355 cp_finish_decl(tree_node*, tree_node*, bool, tree_node*, int)
../../gcc/gcc/cp/decl.c:6877
0x708c2c cp_parser_init_declarator
../../gcc/gcc/cp/parser.c:19398
0x70947c cp_parser_simple_declaration
../../gcc/gcc/cp/parser.c:12792
0x70a235 cp_parser_block_declaration
../../gcc/gcc/cp/parser.c:12617
0x70ace9 cp_parser_declaration_statement
../../gcc/gcc/cp/parser.c:12227
0x6e59c3 cp_parser_statement
../../gcc/gcc/cp/parser.c:10714
0x6e6a5d cp_parser_statement_seq_opt
../../gcc/gcc/cp/parser.c:11046
0x6e6b2f cp_parser_compound_statement
../../gcc/gcc/cp/parser.c:11000
0x6fad43 cp_parser_function_body
../../gcc/gcc/cp/parser.c:21450
0x6fad43 cp_parser_ctor_initializer_opt_and_function_body
../../gcc/gcc/cp/parser.c:21488
0x7037a1 cp_parser_function_definition_after_declarator
../../gcc/gcc/cp/parser.c:26255
0x708fa0 cp_parser_function_definition_from_specifiers_and_declarator
../../gcc/gcc/cp/parser.c:26167
0x708fa0 cp_parser_init_declarator
../../gcc/gcc/cp/parser.c:19177
0x6e2a0a cp_parser_single_declaration
../../gcc/gcc/cp/parser.c:26713
0x702ddc cp_parser_template_declaration_after_parameters
../../gcc/gcc/cp/parser.c:26317
0x702a6c cp_parser_explicit_template_declaration
../../gcc/gcc/cp/parser.c:26552
0x702a6c cp_parser_template_declaration_after_export
../../gcc/gcc/cp/parser.c:26571
0x6e2ed9 cp_parser_declaration
../../gcc/gcc/cp/parser.c:12464
0x71369b cp_parser_declaration_seq_opt
../../gcc/gcc/cp/parser.c:12391
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.
gcc -v gives following output on x86_64 Ubuntu 14.04 based system:
Using built-in specs.
COLLECT_GCC=/home/ejusjud/local/gcc-bin/bin/g++
COLLECT_LTO_WRAPPER=/local/ejusjud/gcc-bin/bin/../libexec/gcc/x86_64-pc-linux-gnu/7.0.1/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcc/configure --enable-languages=c,c++ --enable-libmpx
--prefix=/home/ejusjud/local/gcc-bin : (reconfigured) ../gcc/configure
--enable-languages=c,c++ --enable-libmpx --prefix=/home/ejusjud/local/gcc-bin :
(reconfigured) ../gcc/configure --enable-languages=c,c++ --enable-libmpx
--prefix=/home/ejusjud/local/gcc-bin : (reconfigured) ../gcc/configure
--enable-languages=c,c++ --enable-libmpx --prefix=/home/ejusjud/local/gcc-bin :
(reconfigured) ../gcc/configure --enable-languages=c,c++ --enable-libmpx
--prefix=/home/ejusjud/local/gcc-bin : (reconfigured) ../gcc/configure
--enable-languages=c,c++ --enable-libmpx --prefix=/home/ejusjud/local/gcc-bin :
(reconfigured) ../gcc/configure --enable-languages=c,c++ --enable-libmpx
--prefix=/home/ejusjud/local/gcc-bin : (reconfigured) ../gcc/configure
--enable-languages=c,c++ --enable-libmpx --prefix=/home/ejusjud/local/gcc-bin
Thread model: posix
gcc version 7.0.1 20170207 (experimental) (GCC)
