[Bug debug/91887] [7/8/9 Regression] -fdebug-types-section ICE building chromium

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91887

--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Wed Oct 23 10:32:06 2019
New Revision: 277312

URL: https://gcc.gnu.org/viewcvs?rev=277312&root=gcc&view=rev
Log:
2019-10-23  Richard Biener  <rguenther@suse.de>

        Backport from mainline
        2019-10-17  Richard Biener  <rguenther@suse.de>

        PR debug/91887
        * dwarf2out.c (gen_formal_parameter_die): Also try to match
        context_die against a DW_TAG_GNU_formal_parameter_pack parent.

        * g++.dg/debug/dwarf2/pr91887.C: New testcase.

Added:
    branches/gcc-9-branch/gcc/testsuite/g++.dg/debug/dwarf2/pr91887.C
Modified:
    branches/gcc-9-branch/gcc/ChangeLog
    branches/gcc-9-branch/gcc/dwarf2out.c
    branches/gcc-9-branch/gcc/testsuite/ChangeLog