[Bug debug/48703] segfault in canonicalize_for_substitution

["rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48703

--- Comment #4 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-05-18 13:29:28 UTC ---
Author: rguenth
Date: Wed May 18 13:29:24 2011
New Revision: 173860

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=173860
Log:
2011-05-18  Richard Guenther  <rguenther@suse.de>

        Backport from mainline
        2011-04-19  Richard Guenther  <rguenther@suse.de>

    PR lto/48207
    * tree.c (free_lang_data): Do not reset the decl-assembler-name
    langhook.

    * g++.dg/lto/pr48207_0.C: New testcase.

        2011-04-21  Richard Guenther  <rguenther@suse.de>

    PR lto/48703
    * tree.c (free_lang_data_in_decl): Do not zero TREE_TYPE of
    DECL_NAME.

    * g++.dg/lto/pr48207-2_0.C: New testcase.
    * g++.dg/lto/pr48207-3_0.C: Likewise.

Added:
    branches/gcc-4_6-branch/gcc/testsuite/g++.dg/lto/pr48207-2_0.C
    branches/gcc-4_6-branch/gcc/testsuite/g++.dg/lto/pr48207-3_0.C
    branches/gcc-4_6-branch/gcc/testsuite/g++.dg/lto/pr48207_0.C
Modified:
    branches/gcc-4_6-branch/gcc/ChangeLog
    branches/gcc-4_6-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_6-branch/gcc/tree.c