[Bug c++/108504] [13 Regression] ICE in cp_lexer_handle_early_pragma, at cp/parser.cc:675

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108504

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The trunk branch has been updated by Jason Merrill <ja...@gcc.gnu.org>:

https://gcc.gnu.org/g:327d45c57ebd2655a7599df0f01b8b5e2f82eda7

commit r13-5335-g327d45c57ebd2655a7599df0f01b8b5e2f82eda7
Author: Jason Merrill <ja...@redhat.com>
Date:   Tue Jan 24 16:26:50 2023 -0500

    c++: "" #pragma at BOF [PR108504]

    Since r11-2095 we pass flags to cp_lexer_get_preprocessor_token, and
    cp_lexer_new_main passes C_LEX_STRING_NO_JOIN when lexing most of the
    translation unit, but doesn't do that for the very first token; as a
    result, if the first token is a string literal, we try to join strings and
    get confused if that encounters a pragma.

            PR c++/108504

    gcc/cp/ChangeLog:

            * parser.cc (cp_lexer_new_main): Pass C_LEX_STRING_NO_JOIN for
first
            token, too.

    gcc/testsuite/ChangeLog:

            * g++.dg/ext/pragma1.C: New test.