[Bug debug/65549] [4.9/5/6 Regression] crash in htab_hash_string with -flto -g

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65549

--- Comment #32 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Jun  2 12:33:02 2015
New Revision: 224029

URL: https://gcc.gnu.org/viewcvs?rev=224029&root=gcc&view=rev
Log:
2015-06-02  Richard Biener  <rguent...@suse.de>

        PR debug/65549
        * dwarf2out.c (lookup_context_die): New function.
        (resolve_addr): Avoid forcing a full DIE for the
        target of a DW_TAG_GNU_call_site during late compilation.
        Instead create a stub DIE without a type if we have a
        context DIE present.

        * g++.dg/lto/pr65549_0.C: New testcase.

Added:
    trunk/gcc/testsuite/g++.dg/lto/pr65549_0.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/dwarf2out.c
    trunk/gcc/testsuite/ChangeLog