[Bug c++/82737] [ICE] Compiler segfault on compilation of a certain file (full cause unknown) (file too large for upload, link provided)

[nathan at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82737

--- Comment #23 from Nathan Sidwell <nathan at gcc dot gnu.org> ---
Author: nathan
Date: Thu Nov 16 14:54:54 2017
New Revision: 254823

URL: https://gcc.gnu.org/viewcvs?rev=254823&root=gcc&view=rev
Log:
[PATCH] New lang hook

https://gcc.gnu.org/ml/gcc-patches/2017-11/msg01340.html
        PR c++/82836
        PR c++/82737
        * tree.h (COPY_DECL_RTL): Rename parms for clarity.
        (SET_DECL_ASSEMBLER_NAME): Forward to
        overwrite_decl_assembler_name.
        (COPY_DECL_ASSEMBLER_NAME): Rename parms for clarity.
        (overwrite_decl_assembler_name): Declare.
        * tree.c (overwrite_decl_assembler_name): New.
        * langhooks-def.h (lhd_overwrite_decl_assembler_name): Declare.
        (LANG_HOOKS_OVERWRITE_DECL_ASSEMBLER_NAME): Provide default.
        (LANG_HOOKS_INITIALIZER): Add it.
        * langhooks.h (struct lang_hooks): Add overwrite_decl_assembler_name.
        * langhooks.c (lhd_set_decl_assembler_name): Use
        SET_DECL_ASSEMBLER_NAME.
        (lhd_overwrite_decl_assembler_name): Default implementation.

        PR c++/82836
        PR c++/82737
        * cp-objcp-common.h (LANG_HOOKS_OVERWRITE_DECL_ASSEMBLER_NAME):
        Override.
        * cp-tree.h (overwrite_mangling): Declare.
        * decl2.c (struct mangled_decl_hash): Entries are deletable.
        (overwrite_mangling): New.

        PR c++/82836
        PR c++/82737
        * g++.dg/pr82836.C: New.


Added:
    trunk/gcc/testsuite/g++.dg/pr82836.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/cp-objcp-common.h
    trunk/gcc/cp/cp-tree.h
    trunk/gcc/cp/decl2.c
    trunk/gcc/langhooks-def.h
    trunk/gcc/langhooks.c
    trunk/gcc/langhooks.h
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree.c
    trunk/gcc/tree.h