[Bug lto/83719] [8 Regression] ICE (segfault) in hash_table<indirect_string_hasher, xcallocator>::elements()

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83719

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Jan  8 13:13:48 2018
New Revision: 256338

URL: https://gcc.gnu.org/viewcvs?rev=256338&root=gcc&view=rev
Log:
2018-01-08  Richard Biener  <rguenther@suse.de>

        PR lto/83719
        * dwarf2out.c (output_indirect_strings): Handle empty
        skeleton_debug_str_hash.
        (dwarf2out_early_finish): Index strings for -gsplit-dwarf.

        * gcc.dg/lto/pr83719_0.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/lto/pr83719_0.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/dwarf2out.c
    trunk/gcc/testsuite/ChangeLog