[Bug c++/69628] New: [6 Regression] Conditional jump or move depends on uninitialised value(s)

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69628

            Bug ID: 69628
           Summary: [6 Regression] Conditional jump or move depends on
                    uninitialised value(s)
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
  Target Milestone: ---

Hello.

Running:
$ echo "0'';" | valgrind --leak-check=yes --trace-children=yes ./gcc/xg++ -Bgcc
-std=c++14 -xc++ -

produces:
==14976== Conditional jump or move depends on uninitialised value(s)
==14976==    at 0xB1A59D: lex_charconst(cpp_token const*) (c-lex.c:1252)
==14976==    by 0xB18692: c_lex_with_flags(tree_node**, unsigned int*, unsigned
char*, int) (c-lex.c:550)
==14976==    by 0x92889A: cp_lexer_get_preprocessor_token(cp_lexer*, cp_token*)
(parser.c:792)
==14976==    by 0x928545: cp_lexer_new_main() (parser.c:656)
==14976==    by 0x92BD1A: cp_parser_new() (parser.c:3687)
==14976==    by 0x97B2C0: c_parse_file() (parser.c:37354)
==14976==    by 0xB23FDA: c_common_parse_file() (c-opts.c:1064)
==14976==    by 0x11225EE: compile_file() (toplev.c:465)
==14976==    by 0x1124B96: do_compile() (toplev.c:1988)
==14976==    by 0x1124E21: toplev::main(int, char**) (toplev.c:2096)
==14976==    by 0x1B4DE9F: main (main.c:39)

Thanks,
Martin