[Bug c++/84160] [8 Regression] ICE on valid C++11 code: in build_capture_proxy, at cp/lambda.c:446

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84160

--- Comment #2 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Fri Feb  2 02:07:09 2018
New Revision: 257325

URL: https://gcc.gnu.org/viewcvs?rev=257325&root=gcc&view=rev
Log:
        PR c++/84160 - ICE with nested variadic capture.

        * lambda.c (is_capture_proxy_with_ref): New.
        (insert_capture_proxy): Don't set DECL_CAPTURED_VARIABLE from a
        COMPONENT_REF.
        * expr.c (mark_use): Use is_capture_proxy_with_ref.
        * constexpr.c (potential_constant_expression_1): Likewise.
        * semantics.c (process_outer_var_ref): Likewise.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/lambda/lambda-variadic6.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/constexpr.c
    trunk/gcc/cp/cp-tree.h
    trunk/gcc/cp/expr.c
    trunk/gcc/cp/lambda.c
    trunk/gcc/cp/semantics.c