https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71182
Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-11-30
CC| |dmalcolm at gcc dot gnu.org,
| |trippels at gcc dot gnu.org
Target Milestone|--- |6.4
Summary|parser.c |[6/7 Regression] parser.c
|cp_lexer_previous_token |cp_lexer_previous_token
|sanitizer detects member |sanitizer detects member
|call on null pointer |call on null pointer
Ever confirmed|0 |1
--- Comment #1 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Confirmed. Started with r231293:
commit 3d27a0fa5bfc6af64855917aa6f644d2386f8300
Author: dmalcolm <dmalcolm@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Fri Dec 4 18:09:54 2015 +0000
C++ FE: expression ranges
markus@x4 tmp % UBSAN_OPTIONS=print_stacktrace=1
/var/tmp/gcc_ubsan/usr/local/bin/g++ -c parse.ii
../../gcc/gcc/cp/parser.c:768:7: runtime error: member call on null pointer of
type 'struct vec'
#0 0xb5dd4f in cp_lexer_previous_token ../../gcc/gcc/cp/parser.c:768
#1 0xb5dd4f in cp_parser_postfix_dot_deref_expression
../../gcc/gcc/cp/parser.c:7451
#2 0xb6b22d in cp_parser_postfix_expression ../../gcc/gcc/cp/parser.c:7047
#3 0xb70da1 in cp_parser_unary_expression ../../gcc/gcc/cp/parser.c:8099
#4 0xb74cf8 in cp_parser_cast_expression ../../gcc/gcc/cp/parser.c:8776
#5 0xb76faa in cp_parser_binary_expression ../../gcc/gcc/cp/parser.c:8877
#6 0xb79d40 in cp_parser_assignment_expression
../../gcc/gcc/cp/parser.c:9164
#7 0xb88fc0 in cp_parser_expression ../../gcc/gcc/cp/parser.c:9333
#8 0xb79f99 in cp_parser_question_colon_clause
../../gcc/gcc/cp/parser.c:9107
#9 0xb79f99 in cp_parser_assignment_expression
../../gcc/gcc/cp/parser.c:9170
#10 0xb88fc0 in cp_parser_expression ../../gcc/gcc/cp/parser.c:9333
#11 0xb9c9b0 in cp_parser_expression_statement
../../gcc/gcc/cp/parser.c:10877
#12 0xb44d29 in cp_parser_statement ../../gcc/gcc/cp/parser.c:10693
#13 0xb497a0 in cp_parser_statement_seq_opt ../../gcc/gcc/cp/parser.c:11019
#14 0xb49aa4 in cp_parser_compound_statement
../../gcc/gcc/cp/parser.c:10973
#15 0xb96988 in cp_parser_function_body ../../gcc/gcc/cp/parser.c:21357
#16 0xb96988 in cp_parser_ctor_initializer_opt_and_function_body
../../gcc/gcc/cp/parser.c:21393
#17 0xbb9fa2 in cp_parser_function_definition_after_declarator
../../gcc/gcc/cp/parser.c:26151
#18 0xbbb144 in cp_parser_late_parsing_for_member
../../gcc/gcc/cp/parser.c:27033
#19 0xb2e24f in cp_parser_class_specifier_1 ../../gcc/gcc/cp/parser.c:22244
#20 0xb34f42 in cp_parser_class_specifier ../../gcc/gcc/cp/parser.c:22270
#21 0xb34f42 in cp_parser_type_specifier ../../gcc/gcc/cp/parser.c:16386
#22 0xb3780c in cp_parser_decl_specifier_seq
../../gcc/gcc/cp/parser.c:13303
#23 0xb38d5a in cp_parser_single_declaration
../../gcc/gcc/cp/parser.c:26521
#24 0xbb78ee in cp_parser_template_declaration_after_parameters
../../gcc/gcc/cp/parser.c:26212
#25 0xbb6b9a in cp_parser_explicit_template_declaration
../../gcc/gcc/cp/parser.c:26448
#26 0xbb6b9a in cp_parser_template_declaration_after_export
../../gcc/gcc/cp/parser.c:26466
#27 0xb3a349 in cp_parser_declaration ../../gcc/gcc/cp/parser.c:12445
#28 0xbec445 in cp_parser_declaration_seq_opt
../../gcc/gcc/cp/parser.c:12364
#29 0xbecfee in cp_parser_translation_unit ../../gcc/gcc/cp/parser.c:4368
#30 0xbecfee in c_parse_file() ../../gcc/gcc/cp/parser.c:38262
#31 0x1101f4b in c_common_parse_file() ../../gcc/gcc/c-family/c-opts.c:1098
#32 0x24f370a in compile_file ../../gcc/gcc/toplev.c:463
#33 0x64bea4 in do_compile ../../gcc/gcc/toplev.c:1983
#34 0x64bea4 in toplev::main(int, char**) ../../gcc/gcc/toplev.c:2117
#35 0x64e4d6 in main ../../gcc/gcc/main.c:39
#36 0x7f2977921310 in __libc_start_main ../csu/libc-start.c:286
#37 0x64e8e9 in _start
(/var/tmp/gcc_ubsan/usr/local/libexec/gcc/x86_64-pc-linux-gnu/7.0.0/cc1plus+0x64e8e9)
