[Bug other/78252] C++ demangler crashes with infinite recursion with lambda (auto)

[nathan at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78252

--- Comment #5 from Nathan Sidwell <nathan at gcc dot gnu.org> ---
Author: nathan
Date: Mon Dec 12 17:00:37 2016
New Revision: 243566

URL: https://gcc.gnu.org/viewcvs?rev=243566&root=gcc&view=rev
Log:
        libiberty/
        PR c++/78252
        * cp-demangle.c (struct d_print_info): Add is_lambda_arg field.
        (d_print_init): Initialize it.
        (d_print_comp_inner) <DEMANGLE_COMPONENT_TEMPLATE_PARAM>: Check
        is_lambda_arg for auto.
        <DEMANGLE_COMPONENT_REFERENCE,
        DEMANGLE_COMPONENT_RVALUE_REFERENCE>: Skip smashing check when
        is_lambda_arg.
        <DEMANGLE_COMPONENT_LAMBDA>: Increment is_lambda_arg around arg
        printing.
        * testsuite/demangle-expected: Add lambda auto mangling cases.

        gcc/testsuite/
        PR c++/78252
        * g++.dg/cpp1y/lambda-mangle-1.C: New.

Added:
    trunk/gcc/testsuite/g++.dg/cpp1y/lambda-mangle-1.C
Modified:
    trunk/gcc/testsuite/ChangeLog
    trunk/libiberty/ChangeLog
    trunk/libiberty/cp-demangle.c
    trunk/libiberty/testsuite/demangle-expected