[Bug preprocessor/63831] [5 Regression] r217292 causes segfaults with -MM

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63831

--- Comment #20 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Dec 19 12:20:58 2014
New Revision: 218948

URL: https://gcc.gnu.org/viewcvs?rev=218948&root=gcc&view=rev
Log:
    PR preprocessor/63831
    * c-cppbuiltin.c (c_cpp_builtins): Don't define __has_attribute
    and __has_cpp_attribute here.
    * c-ppoutput.c (init_pp_output): Set cb->has_attribute to
    c_common_has_attribute.
    * c-common.h (c_common_has_attribute): New prototype.
    * c-lex.c (init_c_lex): Set cb->has_attribute to
    c_common_has_attribute instead of cb_has_attribute.
    (get_token_no_padding): New function.
    (cb_has_attribute): Renamed to ...
    (c_common_has_attribute): ... this.  No longer static.  Use
    get_token_no_padding, require ()s, don't build TREE_LIST
    unnecessarily, fix up formatting, adjust diagnostics, call
    init_attributes.

    * directives.c (lex_macro_node): Remove __has_attribute__ handling.
    * internal.h (struct spec_node): Remove n__has_attribute__ field.
    (struct lexer_state): Remove in__has_attribute__ field.
    * macro.c (_cpp_builtin_macro_text): Handle BT_HAS_ATTRIBUTE.
    * identifiers.c (_cpp_init_hashtable): Remove __has_attribute__
    handling.
    * init.c (builtin_array): Add __has_attribute and __has_cpp_attribute.
    (cpp_init_special_builtins): Don't initialize __has_attribute
    or __has_cpp_attribute if CLK_ASM or pfile->cb.has_attribute is NULL.
    * traditional.c (enum ls): Remove ls_has_attribute,
    ls_has_attribute_close.
    (_cpp_scan_out_logical_line): Remove __has_attribute__ handling.
    * include/cpplib.h (enum cpp_builtin_type): Add BT_HAS_ATTRIBUTE.
    * pch.c (cpp_read_state): Remove __has_attribute__ handling.
    * expr.c (eval_token): Likewise.
    (parse_has_attribute): Removed.

    * c-c++-common/cpp/pr63831-1.c: New test.
    * c-c++-common/cpp/pr63831-2.c: New test.

Added:
    trunk/gcc/testsuite/c-c++-common/cpp/pr63831-1.c
    trunk/gcc/testsuite/c-c++-common/cpp/pr63831-2.c
Modified:
    trunk/gcc/c-family/ChangeLog
    trunk/gcc/c-family/c-common.h
    trunk/gcc/c-family/c-cppbuiltin.c
    trunk/gcc/c-family/c-lex.c
    trunk/gcc/c-family/c-ppoutput.c
    trunk/gcc/testsuite/ChangeLog
    trunk/libcpp/ChangeLog
    trunk/libcpp/directives.c
    trunk/libcpp/expr.c
    trunk/libcpp/identifiers.c
    trunk/libcpp/include/cpplib.h
    trunk/libcpp/init.c
    trunk/libcpp/internal.h
    trunk/libcpp/macro.c
    trunk/libcpp/pch.c
    trunk/libcpp/traditional.c