[Bug c++/89422] [8 Regression] ICE in field_byte_offset, at dwarf2out.c:19086

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89422

--- Comment #4 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Thu Feb 21 23:07:47 2019
New Revision: 269081

URL: https://gcc.gnu.org/viewcvs?rev=269081&root=gcc&view=rev
Log:
        PR c++/89422 - ICE with -g and lambda in default arg in template.

Here, we were trying to instantiate the default argument before setting
DECL_FRIEND_CONTEXT, so that the instantiated lambda ended up being treated
as part of the S template, which confused dwarf2out.

        * pt.c (tsubst_function_decl): SET_DECL_FRIEND_CONTEXT sooner.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/lambda/lambda-defarg9.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/pt.c